Merge remote-tracking branch 'origin/master' into wrapped-key-ring

Conflicts:
	OpenKeychain/src/main/java/org/sufficientlysecure/keychain/provider/ProviderHelper.java
	OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainIntentService.java
	OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/CertifyKeyActivity.java
	OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewCertActivity.java
	OpenKeychain/src/main/res/values/strings.xml

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/KeychainApplication.java

@@ -18,6 +18,9 @@
 package org.sufficientlysecure.keychain;
 
 import android.app.Application;
+import android.content.Context;
+import android.graphics.PorterDuff;
+import android.graphics.drawable.Drawable;
 import android.os.Environment;
 
 import org.spongycastle.jce.provider.BouncyCastleProvider;
@@ -70,5 +73,22 @@ public class KeychainApplication extends Application {
                 // that the directory doesn't exist at this point
             }
         }
+
+        brandGlowEffect(getApplicationContext(),
+                getApplicationContext().getResources().getColor(R.color.emphasis));
+    }
+
+    static void brandGlowEffect(Context context, int brandColor) {
+        // terrible hack to brand the edge overscroll glow effect
+        // https://gist.github.com/menny/7878762#file-brandgloweffect_full-java
+
+        //glow
+        int glowDrawableId = context.getResources().getIdentifier("overscroll_glow", "drawable", "android");
+        Drawable androidGlow = context.getResources().getDrawable(glowDrawableId);
+        androidGlow.setColorFilter(brandColor, PorterDuff.Mode.SRC_IN);
+        //edge
+        int edgeDrawableId = context.getResources().getIdentifier("overscroll_edge", "drawable", "android");
+        Drawable androidEdge = context.getResources().getDrawable(edgeDrawableId);
+        androidEdge.setColorFilter(brandColor, PorterDuff.Mode.SRC_IN);
     }
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/helper/ActionBarHelper.java

@@ -32,25 +32,6 @@ import org.sufficientlysecure.keychain.util.Log;
 
 public class ActionBarHelper {
 
-    /**
-     * Set actionbar without home button if called from another app
-     *
-     * @param activity
-     */
-    public static void setBackButton(ActionBarActivity activity) {
-        final ActionBar actionBar = activity.getSupportActionBar();
-        Log.d(Constants.TAG, "calling package (only set when using startActivityForResult)="
-                + activity.getCallingPackage());
-        if (activity.getCallingPackage() != null
-                && activity.getCallingPackage().equals(Constants.PACKAGE_NAME)) {
-            actionBar.setDisplayHomeAsUpEnabled(true);
-            actionBar.setHomeButtonEnabled(true);
-        } else {
-            actionBar.setDisplayHomeAsUpEnabled(false);
-            actionBar.setHomeButtonEnabled(false);
-        }
-    }
-
     /**
      * Sets custom view on ActionBar for Done/Cancel activities
      *

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/helper/FileHelper.java

@@ -112,16 +112,18 @@ public class FileHelper {
 
         if ("content".equalsIgnoreCase(uri.getScheme())) {
             String[] projection = {"_data"};
-            Cursor cursor = null;
-
+            Cursor cursor = context.getContentResolver().query(uri, projection, null, null, null);
             try {
-                cursor = context.getContentResolver().query(uri, projection, null, null, null);
-                int columnIndex = cursor.getColumnIndexOrThrow("_data");
-                if (cursor.moveToFirst()) {
+                if (cursor != null && cursor.moveToFirst()) {
+                    int columnIndex = cursor.getColumnIndexOrThrow("_data");
                     return cursor.getString(columnIndex);
                 }
             } catch (Exception e) {
                 // Eat it
+            } finally {
+                if (cursor != null) {
+                    cursor.close();
+                }
             }
         } else if ("file".equalsIgnoreCase(uri.getScheme())) {
             return uri.getPath();

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/keyimport/HkpKeyServer.java

@@ -16,7 +16,7 @@
  * limitations under the License.
  */
 
-package org.sufficientlysecure.keychain.util;
+package org.sufficientlysecure.keychain.keyimport;
 
 import org.apache.http.HttpEntity;
 import org.apache.http.HttpResponse;
@@ -32,9 +32,8 @@ import org.apache.http.util.EntityUtils;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.pgp.PgpHelper;
 import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
-import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListEntry;
+import org.sufficientlysecure.keychain.util.Log;
 
-import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.UnsupportedEncodingException;
@@ -167,21 +166,6 @@ public class HkpKeyServer extends KeyServer {
         mPort = port;
     }
 
-    private static String readAll(InputStream in, String encoding) throws IOException {
-        ByteArrayOutputStream raw = new ByteArrayOutputStream();
-
-        byte buffer[] = new byte[1 << 16];
-        int n = 0;
-        while ((n = in.read(buffer)) != -1) {
-            raw.write(buffer, 0, n);
-        }
-
-        if (encoding == null) {
-            encoding = "utf8";
-        }
-        return raw.toString(encoding);
-    }
-
     private String query(String request) throws QueryException, HttpError {
         InetAddress ips[];
         try {

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/keyimport/ImportKeysListEntry.java

@@ -15,12 +15,11 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package org.sufficientlysecure.keychain.ui.adapter;
+package org.sufficientlysecure.keychain.keyimport;
 
 import android.content.Context;
 import android.os.Parcel;
 import android.os.Parcelable;
-import android.util.SparseArray;
 
 import org.spongycastle.bcpg.SignatureSubpacketTags;
 import org.spongycastle.openpgp.PGPKeyRing;
@@ -203,7 +202,7 @@ public class ImportKeysListEntry implements Serializable, Parcelable {
      * Constructor for later querying from keyserver
      */
     public ImportKeysListEntry() {
-        // keys from keyserver are always public keys
+        // keys from keyserver are always public keys; from keybase too
         secretKey = false;
         // do not select by default
         mSelected = false;

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/keyimport/KeyServer.java

@@ -16,10 +16,11 @@
  * limitations under the License.
  */
 
-package org.sufficientlysecure.keychain.util;
-
-import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListEntry;
+package org.sufficientlysecure.keychain.keyimport;
 
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
 import java.util.List;
 
 public abstract class KeyServer {
@@ -49,4 +50,19 @@ public abstract class KeyServer {
     abstract String get(String keyIdHex) throws QueryException;
 
     abstract void add(String armoredKey) throws AddKeyException;
+
+    public static String readAll(InputStream in, String encoding) throws IOException {
+        ByteArrayOutputStream raw = new ByteArrayOutputStream();
+
+        byte buffer[] = new byte[1 << 16];
+        int n = 0;
+        while ((n = in.read(buffer)) != -1) {
+            raw.write(buffer, 0, n);
+        }
+
+        if (encoding == null) {
+            encoding = "utf8";
+        }
+        return raw.toString(encoding);
+    }
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/keyimport/KeybaseKeyServer.java

@@ -0,0 +1,161 @@
+/*
+ * Copyright (C) 2014 Tim Bray <tbray@textuality.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.sufficientlysecure.keychain.keyimport;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.util.JWalk;
+import org.sufficientlysecure.keychain.util.Log;
+
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.net.URLEncoder;
+import java.util.ArrayList;
+import java.util.GregorianCalendar;
+import java.util.TimeZone;
+import java.util.WeakHashMap;
+
+public class KeybaseKeyServer extends KeyServer {
+
+    private WeakHashMap<String, String> mKeyCache = new WeakHashMap<String, String>();
+
+    @Override
+    public ArrayList<ImportKeysListEntry> search(String query) throws QueryException, TooManyResponses,
+            InsufficientQuery {
+        ArrayList<ImportKeysListEntry> results = new ArrayList<ImportKeysListEntry>();
+
+        JSONObject fromQuery = getFromKeybase("_/api/1.0/user/autocomplete.json?q=", query);
+        try {
+
+            JSONArray matches = JWalk.getArray(fromQuery, "completions");
+            for (int i = 0; i < matches.length(); i++) {
+                JSONObject match = matches.getJSONObject(i);
+
+                // only list them if they have a key
+                if (JWalk.optObject(match, "components", "key_fingerprint") != null) {
+                    results.add(makeEntry(match));
+                }
+            }
+        } catch (Exception e) {
+            throw new QueryException("Unexpected structure in keybase search result: " + e.getMessage());
+        }
+
+        return results;
+    }
+
+    private JSONObject getUser(String keybaseID) throws QueryException {
+        try {
+            return getFromKeybase("_/api/1.0/user/lookup.json?username=", keybaseID);
+        } catch (Exception e) {
+            String detail = "";
+            if (keybaseID != null) {
+                detail = ". Query was for user '" + keybaseID + "'";
+            }
+            throw new QueryException(e.getMessage() + detail);
+        }
+    }
+
+    private ImportKeysListEntry makeEntry(JSONObject match) throws QueryException, JSONException {
+
+        String keybaseID = JWalk.getString(match, "components", "username", "val");
+        String key_fingerprint = JWalk.getString(match, "components", "key_fingerprint", "val");
+        key_fingerprint = key_fingerprint.replace(" ", "").toUpperCase();
+        match = getUser(keybaseID);
+
+        final ImportKeysListEntry entry = new ImportKeysListEntry();
+
+        // TODO: Fix; have suggested keybase provide this value to avoid search-time crypto calls
+        entry.setBitStrength(4096);
+        entry.setAlgorithm("RSA");
+        entry.setKeyIdHex("0x" + key_fingerprint);
+        entry.setRevoked(false);
+
+        // ctime
+        final long creationDate = JWalk.getLong(match, "them", "public_keys", "primary", "ctime");
+        final GregorianCalendar tmpGreg = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
+        tmpGreg.setTimeInMillis(creationDate * 1000);
+        entry.setDate(tmpGreg.getTime());
+
+        // key bits
+        // we have to fetch the user object to construct the search-result list, so we might as
+        //  well (weakly) remember the key, in case they try to import it
+        mKeyCache.put(keybaseID, JWalk.getString(match,"them", "public_keys", "primary", "bundle"));
+
+        // String displayName = JWalk.getString(match, "them", "profile", "full_name");
+        ArrayList<String> userIds = new ArrayList<String>();
+        String name = "keybase.io/" + keybaseID + " <" + keybaseID + "@keybase.io>";
+        userIds.add(name);
+        userIds.add(keybaseID);
+        entry.setUserIds(userIds);
+        entry.setPrimaryUserId(name);
+        return entry;
+    }
+
+    private JSONObject getFromKeybase(String path, String query) throws QueryException {
+        try {
+            String url = "https://keybase.io/" + path + URLEncoder.encode(query, "utf8");
+            Log.d(Constants.TAG, "keybase query: " + url);
+
+            URL realUrl = new URL(url);
+            HttpURLConnection conn = (HttpURLConnection) realUrl.openConnection();
+            conn.setConnectTimeout(5000); // TODO: Reasonable values for keybase
+            conn.setReadTimeout(25000);
+            conn.connect();
+            int response = conn.getResponseCode();
+            if (response >= 200 && response < 300) {
+                String text = readAll(conn.getInputStream(), conn.getContentEncoding());
+                try {
+                    JSONObject json = new JSONObject(text);
+                    if (JWalk.getInt(json, "status", "code") != 0) {
+                        throw new QueryException("Keybase autocomplete search failed");
+                    }
+                    return json;
+                } catch (JSONException e) {
+                    throw new QueryException("Keybase.io query returned broken JSON");
+                }
+            } else {
+                String message = readAll(conn.getErrorStream(), conn.getContentEncoding());
+                throw new QueryException("Keybase.io query error (status=" + response +
+                        "): " + message);
+            }
+        } catch (Exception e) {
+            throw new QueryException("Keybase.io query error");
+        }
+    }
+
+    @Override
+    public String get(String id) throws QueryException {
+        String key = mKeyCache.get(id);
+        if (key == null) {
+            try {
+                JSONObject user = getUser(id);
+                key = JWalk.getString(user, "them", "public_keys", "primary", "bundle");
+            } catch (Exception e) {
+                throw new QueryException(e.getMessage());
+            }
+        }
+        return key;
+    }
+
+    @Override
+    public void add(String armoredKey) throws AddKeyException {
+        throw new AddKeyException();
+    }
+}

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpImportExport.java

@@ -36,11 +36,10 @@ import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
 import org.sufficientlysecure.keychain.provider.KeychainContract;
 import org.sufficientlysecure.keychain.provider.ProviderHelper;
 import org.sufficientlysecure.keychain.service.KeychainIntentService;
-import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListEntry;
-import org.sufficientlysecure.keychain.util.HkpKeyServer;
+import org.sufficientlysecure.keychain.keyimport.ImportKeysListEntry;
+import org.sufficientlysecure.keychain.keyimport.HkpKeyServer;
 import org.sufficientlysecure.keychain.util.IterableIterator;
-import org.sufficientlysecure.keychain.util.KeyServer.AddKeyException;
-import org.sufficientlysecure.keychain.util.KeychainServiceListener;
+import org.sufficientlysecure.keychain.keyimport.KeyServer.AddKeyException;
 import org.sufficientlysecure.keychain.util.Log;
 
 import java.io.ByteArrayOutputStream;
@@ -51,6 +50,11 @@ import java.util.List;
 
 public class PgpImportExport {
 
+    // TODO: is this really used?
+    public interface KeychainServiceListener {
+        boolean hasServiceStopped();
+    }
+
     private Context mContext;
     private Progressable mProgressable;
 

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignEncrypt.java

@@ -181,8 +181,6 @@ public class PgpSignEncrypt {
         }
 
         /**
-         * TODO: test this option!
-         *
          * @param encryptToSigner
          * @return
          */

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainDatabase.java

@@ -255,53 +255,60 @@ public class KeychainDatabase extends SQLiteOpenHelper {
             }
         }.getReadableDatabase();
 
-        Cursor c = null;
+        Cursor cursor = null;
         try {
             // we insert in two steps: first, all public keys that have secret keys
-            c = db.rawQuery("SELECT key_ring_data FROM key_rings WHERE type = 1 OR EXISTS ("
+            cursor = db.rawQuery("SELECT key_ring_data FROM key_rings WHERE type = 1 OR EXISTS ("
                     + " SELECT 1 FROM key_rings d2 WHERE key_rings.master_key_id = d2.master_key_id"
                     + " AND d2.type = 1) ORDER BY type ASC", null);
-            Log.d(Constants.TAG, "Importing " + c.getCount() + " secret keyrings from apg.db...");
-            for (int i = 0; i < c.getCount(); i++) {
-                c.moveToPosition(i);
-                byte[] data = c.getBlob(0);
-                PGPKeyRing ring = PgpConversionHelper.BytesToPGPKeyRing(data);
-                ProviderHelper providerHelper = new ProviderHelper(context);
-                if (ring instanceof PGPPublicKeyRing)
-                    providerHelper.saveKeyRing((PGPPublicKeyRing) ring);
-                else if (ring instanceof PGPSecretKeyRing)
-                    providerHelper.saveKeyRing((PGPSecretKeyRing) ring);
-                else {
-                    Log.e(Constants.TAG, "Unknown blob data type!");
+            Log.d(Constants.TAG, "Importing " + cursor.getCount() + " secret keyrings from apg.db...");
+            if (cursor != null) {
+                for (int i = 0; i < cursor.getCount(); i++) {
+                    cursor.moveToPosition(i);
+                    byte[] data = cursor.getBlob(0);
+                    PGPKeyRing ring = PgpConversionHelper.BytesToPGPKeyRing(data);
+                    ProviderHelper providerHelper = new ProviderHelper(context);
+                    if (ring instanceof PGPPublicKeyRing)
+                        providerHelper.saveKeyRing((PGPPublicKeyRing) ring);
+                    else if (ring instanceof PGPSecretKeyRing)
+                        providerHelper.saveKeyRing((PGPSecretKeyRing) ring);
+                    else {
+                        Log.e(Constants.TAG, "Unknown blob data type!");
+                    }
                 }
             }
+            if (cursor != null) {
+                cursor.close();
+            }
 
             // afterwards, insert all keys, starting with public keys that have secret keys, then
             // secret keys, then all others. this order is necessary to ensure all certifications
             // are recognized properly.
-            c = db.rawQuery("SELECT key_ring_data FROM key_rings ORDER BY (type = 0 AND EXISTS ("
+            cursor = db.rawQuery("SELECT key_ring_data FROM key_rings ORDER BY (type = 0 AND EXISTS ("
                     + " SELECT 1 FROM key_rings d2 WHERE key_rings.master_key_id = d2.master_key_id AND"
                     + " d2.type = 1)) DESC, type DESC", null);
             // import from old database
-            Log.d(Constants.TAG, "Importing " + c.getCount() + " keyrings from apg.db...");
-            for (int i = 0; i < c.getCount(); i++) {
-                c.moveToPosition(i);
-                byte[] data = c.getBlob(0);
-                PGPKeyRing ring = PgpConversionHelper.BytesToPGPKeyRing(data);
-                ProviderHelper providerHelper = new ProviderHelper(context);
-                if (ring instanceof PGPPublicKeyRing) {
-                    providerHelper.saveKeyRing((PGPPublicKeyRing) ring);
-                } else if (ring instanceof PGPSecretKeyRing) {
-                    providerHelper.saveKeyRing((PGPSecretKeyRing) ring);
-                } else {
-                    Log.e(Constants.TAG, "Unknown blob data type!");
+            Log.d(Constants.TAG, "Importing " + cursor.getCount() + " keyrings from apg.db...");
+            if (cursor != null) {
+                for (int i = 0; i < cursor.getCount(); i++) {
+                    cursor.moveToPosition(i);
+                    byte[] data = cursor.getBlob(0);
+                    PGPKeyRing ring = PgpConversionHelper.BytesToPGPKeyRing(data);
+                    ProviderHelper providerHelper = new ProviderHelper(context);
+                    if (ring instanceof PGPPublicKeyRing) {
+                        providerHelper.saveKeyRing((PGPPublicKeyRing) ring);
+                    } else if (ring instanceof PGPSecretKeyRing) {
+                        providerHelper.saveKeyRing((PGPSecretKeyRing) ring);
+                    } else {
+                        Log.e(Constants.TAG, "Unknown blob data type!");
+                    }
                 }
             }
         } catch (IOException e) {
             Log.e(Constants.TAG, "Error importing apg.db!", e);
         } finally {
-            if (c != null) {
-                c.close();
+            if (cursor != null) {
+                cursor.close();
             }
             if (db != null) {
                 db.close();

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainProvider.java

@@ -567,20 +567,21 @@ public class KeychainProvider extends ContentProvider {
         }
 
         SQLiteDatabase db = getDb().getReadableDatabase();
-        Cursor c = qb.query(db, projection, selection, selectionArgs, groupBy, having, orderBy);
-
-        // Tell the cursor what uri to watch, so it knows when its source data changes
-        c.setNotificationUri(getContext().getContentResolver(), uri);
+        Cursor cursor = qb.query(db, projection, selection, selectionArgs, groupBy, having, orderBy);
+        if (cursor != null) {
+            // Tell the cursor what uri to watch, so it knows when its source data changes
+            cursor.setNotificationUri(getContext().getContentResolver(), uri);
+        }
 
         if (Constants.DEBUG) {
             Log.d(Constants.TAG,
                     "Query: "
                             + qb.buildQuery(projection, selection, selectionArgs, null, null,
                             orderBy, null));
-            Log.d(Constants.TAG, "Cursor: " + DatabaseUtils.dumpCursorToString(c));
+            Log.d(Constants.TAG, "Cursor: " + DatabaseUtils.dumpCursorToString(cursor));
         }
 
-        return c;
+        return cursor;
     }
 
     /**

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/provider/ProviderHelper.java

@@ -26,6 +26,7 @@ import android.database.Cursor;
 import android.database.DatabaseUtils;
 import android.net.Uri;
 import android.os.RemoteException;
+import android.support.v4.util.LongSparseArray;
 
 import org.spongycastle.bcpg.ArmoredOutputStream;
 import org.spongycastle.bcpg.S2K;
@@ -103,36 +104,38 @@ public class ProviderHelper {
             throws NotFoundException {
         Cursor cursor = mContentResolver.query(uri, proj, null, null, null);
 
-        HashMap<String, Object> result = new HashMap<String, Object>(proj.length);
-        if (cursor != null && cursor.moveToFirst()) {
-            int pos = 0;
-            for (String p : proj) {
-                switch (types[pos]) {
-                    case FIELD_TYPE_NULL:
-                        result.put(p, cursor.isNull(pos));
-                        break;
-                    case FIELD_TYPE_INTEGER:
-                        result.put(p, cursor.getLong(pos));
-                        break;
-                    case FIELD_TYPE_FLOAT:
-                        result.put(p, cursor.getFloat(pos));
-                        break;
-                    case FIELD_TYPE_STRING:
-                        result.put(p, cursor.getString(pos));
-                        break;
-                    case FIELD_TYPE_BLOB:
-                        result.put(p, cursor.getBlob(pos));
-                        break;
+        try {
+            HashMap<String, Object> result = new HashMap<String, Object>(proj.length);
+            if (cursor != null && cursor.moveToFirst()) {
+                int pos = 0;
+                for (String p : proj) {
+                    switch (types[pos]) {
+                        case FIELD_TYPE_NULL:
+                            result.put(p, cursor.isNull(pos));
+                            break;
+                        case FIELD_TYPE_INTEGER:
+                            result.put(p, cursor.getLong(pos));
+                            break;
+                        case FIELD_TYPE_FLOAT:
+                            result.put(p, cursor.getFloat(pos));
+                            break;
+                        case FIELD_TYPE_STRING:
+                            result.put(p, cursor.getString(pos));
+                            break;
+                        case FIELD_TYPE_BLOB:
+                            result.put(p, cursor.getBlob(pos));
+                            break;
+                    }
+                    pos += 1;
                 }
-                pos += 1;
+            }
+
+            return result;
+        } finally {
+            if (cursor != null) {
+                cursor.close();
             }
         }
-
-        if (cursor != null) {
-            cursor.close();
-        }
-
-        return result;
     }
 
     public Object getUnifiedData(long masterKeyId, String column, int type)
@@ -172,22 +175,24 @@ public class ProviderHelper {
     }
 
     @Deprecated
-    public Map<Long, PGPKeyRing> getPGPKeyRings(Uri queryUri) {
+    public LongSparseArray<PGPKeyRing> getPGPKeyRings(Uri queryUri) {
         Cursor cursor = mContentResolver.query(queryUri,
                 new String[]{KeyRingData.MASTER_KEY_ID, KeyRingData.KEY_RING_DATA},
                 null, null, null);
 
-        Map<Long, PGPKeyRing> result = new HashMap<Long, PGPKeyRing>(cursor.getCount());
-        if (cursor != null && cursor.moveToFirst()) do {
-            long masterKeyId = cursor.getLong(0);
-            byte[] data = cursor.getBlob(1);
-            if (data != null) {
-                result.put(masterKeyId, PgpConversionHelper.BytesToPGPKeyRing(data));
+        LongSparseArray<PGPKeyRing> result = new LongSparseArray<PGPKeyRing>(cursor.getCount());
+        try {
+            if (cursor != null && cursor.moveToFirst()) do {
+                long masterKeyId = cursor.getLong(0);
+                byte[] data = cursor.getBlob(1);
+                if (data != null) {
+                    result.put(masterKeyId, PgpConversionHelper.BytesToPGPKeyRing(data));
+                }
+            } while (cursor.moveToNext());
+        } finally {
+            if (cursor != null) {
+                cursor.close();
             }
-        } while (cursor.moveToNext());
-
-        if (cursor != null) {
-            cursor.close();
         }
 
         return result;
@@ -255,11 +260,11 @@ public class ProviderHelper {
 
     @Deprecated
     public PGPKeyRing getPGPKeyRing(Uri queryUri) throws NotFoundException {
-        Map<Long, PGPKeyRing> result = getPGPKeyRings(queryUri);
-        if (result.isEmpty()) {
+        LongSparseArray<PGPKeyRing> result = getPGPKeyRings(queryUri);
+        if (result.size() == 0) {
             throw new NotFoundException("PGPKeyRing object not found!");
         } else {
-            return result.values().iterator().next();
+            return result.valueAt(0);
         }
     }
 
@@ -312,7 +317,7 @@ public class ProviderHelper {
         }
 
         // get a list of owned secret keys, for verification filtering
-        Map<Long, PGPKeyRing> allKeyRings = getPGPKeyRings(KeyRingData.buildSecretKeyRingUri());
+        LongSparseArray<PGPKeyRing> allKeyRings = getPGPKeyRings(KeyRingData.buildSecretKeyRingUri());
         // special case: available secret keys verify themselves!
         if (secretRing != null)
             allKeyRings.put(secretRing.getSecretKey().getKeyID(), secretRing);
@@ -350,7 +355,7 @@ public class ProviderHelper {
                         }
                     }
                     // verify signatures from known private keys
-                    if (allKeyRings.containsKey(certId)) {
+                    if (allKeyRings.indexOfKey(certId) >= 0) {
                         // mark them as verified
                         cert.init(new JcaPGPContentVerifierBuilderProvider().setProvider(
                                 Constants.BOUNCY_CASTLE_PROVIDER_NAME),
@@ -634,27 +639,29 @@ public class ProviderHelper {
             }, inMasterKeyList, null, null);
         }
 
-        if (cursor != null) {
-            int masterIdCol = cursor.getColumnIndex(KeyRingData.MASTER_KEY_ID);
-            int dataCol = cursor.getColumnIndex(KeyRingData.KEY_RING_DATA);
-            if (cursor.moveToFirst()) {
-                do {
-                    Log.d(Constants.TAG, "masterKeyId: " + cursor.getLong(masterIdCol));
+        try {
+            if (cursor != null) {
+                int masterIdCol = cursor.getColumnIndex(KeyRingData.MASTER_KEY_ID);
+                int dataCol = cursor.getColumnIndex(KeyRingData.KEY_RING_DATA);
+                if (cursor.moveToFirst()) {
+                    do {
+                        Log.d(Constants.TAG, "masterKeyId: " + cursor.getLong(masterIdCol));
 
-                    byte[] data = cursor.getBlob(dataCol);
+                        byte[] data = cursor.getBlob(dataCol);
 
-                    // get actual keyring data blob and write it to ByteArrayOutputStream
-                    try {
-                        output.add(getKeyRingAsArmoredString(data));
-                    } catch (IOException e) {
-                        Log.e(Constants.TAG, "IOException", e);
-                    }
-                } while (cursor.moveToNext());
+                        // get actual keyring data blob and write it to ByteArrayOutputStream
+                        try {
+                            output.add(getKeyRingAsArmoredString(data));
+                        } catch (IOException e) {
+                            Log.e(Constants.TAG, "IOException", e);
+                        }
+                    } while (cursor.moveToNext());
+                }
+            }
+        } finally {
+            if (cursor != null) {
+                cursor.close();
             }
-        }
-
-        if (cursor != null) {
-            cursor.close();
         }
 
         if (output.size() > 0) {
@@ -668,17 +675,19 @@ public class ProviderHelper {
         Cursor cursor = mContentResolver.query(ApiApps.CONTENT_URI, null, null, null, null);
 
         ArrayList<String> packageNames = new ArrayList<String>();
-        if (cursor != null) {
-            int packageNameCol = cursor.getColumnIndex(ApiApps.PACKAGE_NAME);
-            if (cursor.moveToFirst()) {
-                do {
-                    packageNames.add(cursor.getString(packageNameCol));
-                } while (cursor.moveToNext());
+        try {
+            if (cursor != null) {
+                int packageNameCol = cursor.getColumnIndex(ApiApps.PACKAGE_NAME);
+                if (cursor.moveToFirst()) {
+                    do {
+                        packageNames.add(cursor.getString(packageNameCol));
+                    } while (cursor.moveToNext());
+                }
+            }
+        } finally {
+            if (cursor != null) {
+                cursor.close();
             }
-        }
-
-        if (cursor != null) {
-            cursor.close();
         }
 
         return packageNames;
@@ -726,13 +735,19 @@ public class ProviderHelper {
     public AppSettings getApiAppSettings(Uri uri) {
         AppSettings settings = null;
 
-        Cursor cur = mContentResolver.query(uri, null, null, null, null);
-        if (cur != null && cur.moveToFirst()) {
-            settings = new AppSettings();
-            settings.setPackageName(cur.getString(
-                    cur.getColumnIndex(KeychainContract.ApiApps.PACKAGE_NAME)));
-            settings.setPackageSignature(cur.getBlob(
-                    cur.getColumnIndex(KeychainContract.ApiApps.PACKAGE_SIGNATURE)));
+        Cursor cursor = mContentResolver.query(uri, null, null, null, null);
+        try {
+            if (cursor != null && cursor.moveToFirst()) {
+                settings = new AppSettings();
+                settings.setPackageName(cursor.getString(
+                        cursor.getColumnIndex(KeychainContract.ApiApps.PACKAGE_NAME)));
+                settings.setPackageSignature(cursor.getBlob(
+                        cursor.getColumnIndex(KeychainContract.ApiApps.PACKAGE_SIGNATURE)));
+            }
+        } finally {
+            if (cursor != null) {
+                cursor.close();
+            }
         }
 
         return settings;
@@ -741,20 +756,26 @@ public class ProviderHelper {
     public AccountSettings getApiAccountSettings(Uri accountUri) {
         AccountSettings settings = null;
 
-        Cursor cur = mContentResolver.query(accountUri, null, null, null, null);
-        if (cur != null && cur.moveToFirst()) {
-            settings = new AccountSettings();
+        Cursor cursor = mContentResolver.query(accountUri, null, null, null, null);
+        try {
+            if (cursor != null && cursor.moveToFirst()) {
+                settings = new AccountSettings();
 
-            settings.setAccountName(cur.getString(
-                    cur.getColumnIndex(KeychainContract.ApiAccounts.ACCOUNT_NAME)));
-            settings.setKeyId(cur.getLong(
-                    cur.getColumnIndex(KeychainContract.ApiAccounts.KEY_ID)));
-            settings.setCompression(cur.getInt(
-                    cur.getColumnIndexOrThrow(KeychainContract.ApiAccounts.COMPRESSION)));
-            settings.setHashAlgorithm(cur.getInt(
-                    cur.getColumnIndexOrThrow(KeychainContract.ApiAccounts.HASH_ALORITHM)));
-            settings.setEncryptionAlgorithm(cur.getInt(
-                    cur.getColumnIndexOrThrow(KeychainContract.ApiAccounts.ENCRYPTION_ALGORITHM)));
+                settings.setAccountName(cursor.getString(
+                        cursor.getColumnIndex(KeychainContract.ApiAccounts.ACCOUNT_NAME)));
+                settings.setKeyId(cursor.getLong(
+                        cursor.getColumnIndex(KeychainContract.ApiAccounts.KEY_ID)));
+                settings.setCompression(cursor.getInt(
+                        cursor.getColumnIndexOrThrow(KeychainContract.ApiAccounts.COMPRESSION)));
+                settings.setHashAlgorithm(cursor.getInt(
+                        cursor.getColumnIndexOrThrow(KeychainContract.ApiAccounts.HASH_ALORITHM)));
+                settings.setEncryptionAlgorithm(cursor.getInt(
+                        cursor.getColumnIndexOrThrow(KeychainContract.ApiAccounts.ENCRYPTION_ALGORITHM)));
+            }
+        } finally {
+            if (cursor != null) {
+                cursor.close();
+            }
         }
 
         return settings;
@@ -764,10 +785,16 @@ public class ProviderHelper {
         Set<Long> keyIds = new HashSet<Long>();
 
         Cursor cursor = mContentResolver.query(uri, null, null, null, null);
-        if (cursor != null) {
-            int keyIdColumn = cursor.getColumnIndex(KeychainContract.ApiAccounts.KEY_ID);
-            while (cursor.moveToNext()) {
-                keyIds.add(cursor.getLong(keyIdColumn));
+        try {
+            if (cursor != null) {
+                int keyIdColumn = cursor.getColumnIndex(KeychainContract.ApiAccounts.KEY_ID);
+                while (cursor.moveToNext()) {
+                    keyIds.add(cursor.getLong(keyIdColumn));
+                }
+            }
+        } finally {
+            if (cursor != null) {
+                cursor.close();
             }
         }
 
@@ -780,18 +807,18 @@ public class ProviderHelper {
         String[] projection = new String[]{ApiApps.PACKAGE_SIGNATURE};
 
         Cursor cursor = mContentResolver.query(queryUri, projection, null, null, null);
+        try {
+            byte[] signature = null;
+            if (cursor != null && cursor.moveToFirst()) {
+                int signatureCol = 0;
 
-        byte[] signature = null;
-        if (cursor != null && cursor.moveToFirst()) {
-            int signatureCol = 0;
-
-            signature = cursor.getBlob(signatureCol);
+                signature = cursor.getBlob(signatureCol);
+            }
+            return signature;
+        } finally {
+            if (cursor != null) {
+                cursor.close();
+            }
         }
-
-        if (cursor != null) {
-            cursor.close();
-        }
-
-        return signature;
     }
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/OpenPgpService.java

@@ -42,6 +42,7 @@ import org.sufficientlysecure.keychain.provider.ProviderHelper;
 import org.sufficientlysecure.keychain.remote.ui.RemoteServiceActivity;
 import org.sufficientlysecure.keychain.service.PassphraseCacheService;
 import org.sufficientlysecure.keychain.ui.ImportKeysActivity;
+import org.sufficientlysecure.keychain.ui.ViewKeyActivity;
 import org.sufficientlysecure.keychain.util.InputData;
 import org.sufficientlysecure.keychain.util.Log;
 
@@ -69,19 +70,25 @@ public class OpenPgpService extends RemoteService {
 
         for (String email : encryptionUserIds) {
             Uri uri = KeyRings.buildUnifiedKeyRingsFindByEmailUri(email);
-            Cursor cur = getContentResolver().query(uri, null, null, null, null);
-            if (cur.moveToFirst()) {
-                long id = cur.getLong(cur.getColumnIndex(KeyRings.MASTER_KEY_ID));
-                keyIds.add(id);
-            } else {
-                missingUserIdsCheck = true;
-                missingUserIds.add(email);
-                Log.d(Constants.TAG, "user id missing");
-            }
-            if (cur.moveToNext()) {
-                duplicateUserIdsCheck = true;
-                duplicateUserIds.add(email);
-                Log.d(Constants.TAG, "more than one user id with the same email");
+            Cursor cursor = getContentResolver().query(uri, null, null, null, null);
+            try {
+                if (cursor != null && cursor.moveToFirst()) {
+                    long id = cursor.getLong(cursor.getColumnIndex(KeyRings.MASTER_KEY_ID));
+                    keyIds.add(id);
+                } else {
+                    missingUserIdsCheck = true;
+                    missingUserIds.add(email);
+                    Log.d(Constants.TAG, "user id missing");
+                }
+                if (cursor != null && cursor.moveToNext()) {
+                    duplicateUserIdsCheck = true;
+                    duplicateUserIds.add(email);
+                    Log.d(Constants.TAG, "more than one user id with the same email");
+                }
+            } finally {
+                if (cursor != null) {
+                    cursor.close();
+                }
             }
         }
 
@@ -417,7 +424,15 @@ public class OpenPgpService extends RemoteService {
                 Intent result = new Intent();
                 result.putExtra(OpenPgpApi.RESULT_CODE, OpenPgpApi.RESULT_CODE_SUCCESS);
 
-                // TODO: also return PendingIntent that opens the key view activity
+                // also return PendingIntent that opens the key view activity
+                Intent intent = new Intent(getBaseContext(), ViewKeyActivity.class);
+                intent.setData(KeyRings.buildGenericKeyRingUri(Long.toString(masterKeyId)));
+
+                PendingIntent pi = PendingIntent.getActivity(getBaseContext(), 0,
+                        intent,
+                        PendingIntent.FLAG_CANCEL_CURRENT);
+
+                result.putExtra(OpenPgpApi.RESULT_INTENT, pi);
 
                 return result;
             } catch (ProviderHelper.NotFoundException e) {

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AppSettingsActivity.java

@@ -40,6 +40,9 @@ public class AppSettingsActivity extends ActionBarActivity {
     private AppSettingsFragment mSettingsFragment;
     private AccountsListFragment mAccountsListFragment;
 
+    // model
+    AppSettings mAppSettings;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -80,22 +83,39 @@ public class AppSettingsActivity extends ActionBarActivity {
             case R.id.menu_api_settings_revoke:
                 revokeAccess();
                 return true;
+            case R.id.menu_api_settings_start:
+                startApp();
+                return true;
         }
         return super.onOptionsItemSelected(item);
     }
 
+    private void startApp() {
+        Intent i;
+        PackageManager manager = getPackageManager();
+        try {
+            i = manager.getLaunchIntentForPackage(mAppSettings.getPackageName());
+            if (i == null)
+                throw new PackageManager.NameNotFoundException();
+            i.addCategory(Intent.CATEGORY_LAUNCHER);
+            startActivity(i);
+        } catch (PackageManager.NameNotFoundException e) {
+            Log.e(Constants.TAG, "startApp", e);
+        }
+    }
+
     private void loadData(Bundle savedInstanceState, Uri appUri) {
-        AppSettings settings = new ProviderHelper(this).getApiAppSettings(appUri);
-        mSettingsFragment.setAppSettings(settings);
+        mAppSettings = new ProviderHelper(this).getApiAppSettings(appUri);
+        mSettingsFragment.setAppSettings(mAppSettings);
 
         String appName;
         PackageManager pm = getPackageManager();
         try {
-            ApplicationInfo ai = pm.getApplicationInfo(settings.getPackageName(), 0);
+            ApplicationInfo ai = pm.getApplicationInfo(mAppSettings.getPackageName(), 0);
             appName = (String) pm.getApplicationLabel(ai);
         } catch (PackageManager.NameNotFoundException e) {
             // fallback
-            appName = settings.getPackageName();
+            appName = mAppSettings.getPackageName();
         }
         setTitle(appName);
 

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/RemoteServiceActivity.java

@@ -250,7 +250,7 @@ public class RemoteServiceActivity extends ActionBarActivity {
 
             // set text on view
             HtmlTextView textView = (HtmlTextView) findViewById(R.id.api_select_pub_keys_text);
-            textView.setHtmlFromString(text);
+            textView.setHtmlFromString(text, true);
 
             /* Load select pub keys fragment */
             // Check that the activity is using the layout version with
@@ -292,7 +292,7 @@ public class RemoteServiceActivity extends ActionBarActivity {
 
             // set text on view
             HtmlTextView textView = (HtmlTextView) findViewById(R.id.api_app_error_message_text);
-            textView.setHtmlFromString(text);
+            textView.setHtmlFromString(text, true);
         } else {
             Log.e(Constants.TAG, "Action does not exist!");
             setResult(RESULT_CANCELED);

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainIntentService.java

@@ -50,10 +50,10 @@ import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralMsgIdException;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
 import org.sufficientlysecure.keychain.provider.KeychainDatabase;
 import org.sufficientlysecure.keychain.provider.ProviderHelper;
-import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListEntry;
-import org.sufficientlysecure.keychain.util.HkpKeyServer;
+import org.sufficientlysecure.keychain.keyimport.ImportKeysListEntry;
+import org.sufficientlysecure.keychain.keyimport.HkpKeyServer;
 import org.sufficientlysecure.keychain.util.InputData;
-import org.sufficientlysecure.keychain.util.KeychainServiceListener;
+import org.sufficientlysecure.keychain.keyimport.KeybaseKeyServer;
 import org.sufficientlysecure.keychain.util.Log;
 import org.sufficientlysecure.keychain.util.ProgressScaler;
 
@@ -75,7 +75,7 @@ import java.util.List;
  * after doing them.
  */
 public class KeychainIntentService extends IntentService
-        implements Progressable, KeychainServiceListener {
+        implements Progressable, PgpImportExport.KeychainServiceListener {
 
     /* extras that can be given by intent */
     public static final String EXTRA_MESSENGER = "messenger";
@@ -99,6 +99,7 @@ public class KeychainIntentService extends IntentService
 
     public static final String ACTION_UPLOAD_KEYRING = Constants.INTENT_PREFIX + "UPLOAD_KEYRING";
     public static final String ACTION_DOWNLOAD_AND_IMPORT_KEYS = Constants.INTENT_PREFIX + "QUERY_KEYRING";
+    public static final String ACTION_IMPORT_KEYBASE_KEYS = Constants.INTENT_PREFIX + "DOWNLOAD_KEYBASE";
 
     public static final String ACTION_CERTIFY_KEYRING = Constants.INTENT_PREFIX + "SIGN_KEYRING";
 
@@ -319,6 +320,7 @@ public class KeychainIntentService extends IntentService
                         .setEncryptionMasterKeyIds(encryptionKeyIds)
                         .setSymmetricPassphrase(symmetricPassphrase)
                         .setSignatureMasterKeyId(signatureKeyId)
+                        .setEncryptToSigner(true)
                         .setSignatureHashAlgorithm(
                                 Preferences.getPreferences(this).getDefaultHashAlgorithm())
                         .setSignaturePassphrase(
@@ -681,8 +683,7 @@ public class KeychainIntentService extends IntentService
                         new String[]{KeyRings.MASTER_KEY_ID, KeyRings.HAS_ANY_SECRET},
                         selection, null, null);
                 try {
-                    cursor.moveToFirst();
-                    do {
+                    if (cursor != null && cursor.moveToFirst()) do {
                         // export public either way
                         publicMasterKeyIds.add(cursor.getLong(0));
                         // add secret if available (and requested)
@@ -690,7 +691,9 @@ public class KeychainIntentService extends IntentService
                             secretMasterKeyIds.add(cursor.getLong(0));
                     } while (cursor.moveToNext());
                 } finally {
-                    cursor.close();
+                    if (cursor != null) {
+                        cursor.close();
+                    }
                 }
 
                 PgpImportExport pgpImportExport = new PgpImportExport(this, this, this);
@@ -729,6 +732,55 @@ public class KeychainIntentService extends IntentService
             } catch (Exception e) {
                 sendErrorToHandler(e);
             }
+        } else if (ACTION_IMPORT_KEYBASE_KEYS.equals(action)) {
+            ArrayList<ImportKeysListEntry> entries = data.getParcelableArrayList(DOWNLOAD_KEY_LIST);
+
+            try {
+                KeybaseKeyServer server = new KeybaseKeyServer();
+                for (ImportKeysListEntry entry : entries) {
+                    // the keybase handle is in userId(1)
+                    String keybaseID = entry.getUserIds().get(1);
+                    byte[] downloadedKeyBytes = server.get(keybaseID).getBytes();
+
+                    // create PGPKeyRing object based on downloaded armored key
+                    PGPKeyRing downloadedKey = null;
+                    BufferedInputStream bufferedInput =
+                            new BufferedInputStream(new ByteArrayInputStream(downloadedKeyBytes));
+                    if (bufferedInput.available() > 0) {
+                        InputStream in = PGPUtil.getDecoderStream(bufferedInput);
+                        PGPObjectFactory objectFactory = new PGPObjectFactory(in);
+
+                        // get first object in block
+                        Object obj;
+                        if ((obj = objectFactory.nextObject()) != null) {
+
+                            if (obj instanceof PGPKeyRing) {
+                                downloadedKey = (PGPKeyRing) obj;
+                            } else {
+                                throw new PgpGeneralException("Object not recognized as PGPKeyRing!");
+                            }
+                        }
+                    }
+
+                    // save key bytes in entry object for doing the
+                    // actual import afterwards
+                    entry.setBytes(downloadedKey.getEncoded());
+                }
+
+                Intent importIntent = new Intent(this, KeychainIntentService.class);
+                importIntent.setAction(ACTION_IMPORT_KEYRING);
+                Bundle importData = new Bundle();
+                importData.putParcelableArrayList(IMPORT_KEY_LIST, entries);
+                importIntent.putExtra(EXTRA_DATA, importData);
+                importIntent.putExtra(EXTRA_MESSENGER, mMessenger);
+
+                // now import it with this service
+                onHandleIntent(importIntent);
+
+                // result is handled in ACTION_IMPORT_KEYRING
+            } catch (Exception e) {
+                sendErrorToHandler(e);
+            }
         } else if (ACTION_DOWNLOAD_AND_IMPORT_KEYS.equals(action)) {
             try {
                 ArrayList<ImportKeysListEntry> entries = data.getParcelableArrayList(DOWNLOAD_KEY_LIST);

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainIntentServiceHandler.java

@@ -24,7 +24,8 @@ import android.os.Handler;
 import android.os.Message;
 import android.support.v4.app.FragmentActivity;
 import android.support.v4.app.FragmentManager;
-import android.widget.Toast;
+
+import com.devspark.appmsg.AppMsg;
 
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.ui.dialog.ProgressDialogFragment;
@@ -99,9 +100,9 @@ public class KeychainIntentServiceHandler extends Handler {
 
                 // show error from service
                 if (data.containsKey(DATA_ERROR)) {
-                    Toast.makeText(mActivity,
+                    AppMsg.makeText(mActivity,
                             mActivity.getString(R.string.error_message, data.getString(DATA_ERROR)),
-                            Toast.LENGTH_SHORT).show();
+                            AppMsg.STYLE_ALERT).show();
                 }
 
                 break;

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/CertifyKeyActivity.java

@@ -26,10 +26,11 @@ import android.os.Handler;
 import android.os.Message;
 import android.os.Messenger;
 import android.support.v4.app.LoaderManager;
+import android.support.v4.app.NavUtils;
 import android.support.v4.content.CursorLoader;
 import android.support.v4.content.Loader;
-import android.support.v7.app.ActionBar;
 import android.support.v7.app.ActionBarActivity;
+import android.view.MenuItem;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.widget.ArrayAdapter;
@@ -40,7 +41,6 @@ import android.widget.ListView;
 import android.widget.Spinner;
 import android.widget.TextView;
 
-import com.beardedhen.androidbootstrap.BootstrapButton;
 import com.devspark.appmsg.AppMsg;
 
 import org.sufficientlysecure.keychain.Constants;
@@ -64,7 +64,7 @@ import java.util.ArrayList;
  */
 public class CertifyKeyActivity extends ActionBarActivity implements
         SelectSecretKeyLayoutFragment.SelectSecretKeyCallback, LoaderManager.LoaderCallbacks<Cursor> {
-    private BootstrapButton mSignButton;
+    private View mSignButton;
     private CheckBox mUploadKeyCheckbox;
     private Spinner mSelectKeyserverSpinner;
 
@@ -86,20 +86,16 @@ public class CertifyKeyActivity extends ActionBarActivity implements
 
         setContentView(R.layout.certify_key_activity);
 
-        final ActionBar actionBar = getSupportActionBar();
-        actionBar.setDisplayShowTitleEnabled(true);
-        actionBar.setDisplayHomeAsUpEnabled(false);
-        actionBar.setHomeButtonEnabled(false);
-
         mSelectKeyFragment = (SelectSecretKeyLayoutFragment) getSupportFragmentManager()
                 .findFragmentById(R.id.sign_key_select_key_fragment);
         mSelectKeyFragment.setCallback(this);
         mSelectKeyFragment.setFilterCertify(true);
 
-        mSelectKeyserverSpinner = (Spinner) findViewById(R.id.sign_key_keyserver);
+        mSelectKeyserverSpinner = (Spinner) findViewById(R.id.upload_key_keyserver);
         ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
                 android.R.layout.simple_spinner_item, Preferences.getPreferences(this)
-                .getKeyServers());
+                .getKeyServers()
+        );
         adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
         mSelectKeyserverSpinner.setAdapter(adapter);
 
@@ -122,14 +118,14 @@ public class CertifyKeyActivity extends ActionBarActivity implements
             }
         });
 
-        mSignButton = (BootstrapButton) findViewById(R.id.sign_key_sign_button);
+        mSignButton = findViewById(R.id.sign_key_sign_button);
         mSignButton.setOnClickListener(new OnClickListener() {
 
             @Override
             public void onClick(View v) {
                 if (mPubKeyId != 0) {
                     if (mMasterKeyId == 0) {
-                        mSelectKeyFragment.setError(getString(R.string.select_key_to_sign));
+                        mSelectKeyFragment.setError(getString(R.string.select_key_to_certify));
                     } else {
                         initiateSigning();
                     }
@@ -145,7 +141,7 @@ public class CertifyKeyActivity extends ActionBarActivity implements
         }
         Log.e(Constants.TAG, "uri: " + mDataUri);
 
-        mUserIds = (ListView) findViewById(R.id.user_ids);
+        mUserIds = (ListView) findViewById(R.id.view_key_user_ids);
 
         mUserIdsAdapter = new ViewKeyUserIdsAdapter(this, null, 0, true);
         mUserIds.setAdapter(mUserIdsAdapter);
@@ -201,7 +197,7 @@ public class CertifyKeyActivity extends ActionBarActivity implements
 
                     byte[] fingerprintBlob = data.getBlob(INDEX_FINGERPRINT);
                     String fingerprint = PgpKeyHelper.convertFingerprintToHex(fingerprintBlob);
-                    ((TextView) findViewById(R.id.fingerprint))
+                    ((TextView) findViewById(R.id.view_key_fingerprint))
                             .setText(PgpKeyHelper.colorizeFingerprint(fingerprint));
                 }
                 break;
@@ -318,7 +314,7 @@ public class CertifyKeyActivity extends ActionBarActivity implements
         // fill values for this action
         Bundle data = new Bundle();
 
-        Spinner keyServer = (Spinner) findViewById(R.id.sign_key_keyserver);
+        Spinner keyServer = (Spinner) findViewById(R.id.upload_key_keyserver);
         String server = (String) keyServer.getSelectedItem();
         data.putString(KeychainIntentService.UPLOAD_KEY_SERVER, server);
 
@@ -359,4 +355,17 @@ public class CertifyKeyActivity extends ActionBarActivity implements
     public void onKeySelected(long secretKeyId) {
         mMasterKeyId = secretKeyId;
     }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case android.R.id.home: {
+                Intent viewIntent = NavUtils.getParentActivityIntent(this);
+                viewIntent.setData(KeyRings.buildGenericKeyRingUri(mDataUri));
+                NavUtils.navigateUpTo(this, viewIntent);
+                return true;
+            }
+        }
+        return super.onOptionsItemSelected(item);
+    }
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptActivity.java

@@ -27,7 +27,6 @@ import android.widget.Toast;
 
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.helper.ActionBarHelper;
 import org.sufficientlysecure.keychain.helper.FileHelper;
 import org.sufficientlysecure.keychain.pgp.PgpHelper;
 import org.sufficientlysecure.keychain.ui.adapter.PagerTabStripAdapter;
@@ -68,9 +67,6 @@ public class DecryptActivity extends DrawerActivity {
 
         setContentView(R.layout.decrypt_activity);
 
-        // set actionbar without home button if called from another app
-        ActionBarHelper.setBackButton(this);
-
         initView();
 
         setupDrawerNavigation(savedInstanceState);

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptFileFragment.java

@@ -54,7 +54,7 @@ public class DecryptFileFragment extends DecryptFragment {
     private EditText mFilename;
     private CheckBox mDeleteAfter;
     private BootstrapButton mBrowse;
-    private BootstrapButton mDecryptButton;
+    private View mDecryptButton;
 
     private String mInputFilename = null;
     private String mOutputFilename = null;
@@ -71,7 +71,7 @@ public class DecryptFileFragment extends DecryptFragment {
         mFilename = (EditText) view.findViewById(R.id.decrypt_file_filename);
         mBrowse = (BootstrapButton) view.findViewById(R.id.decrypt_file_browse);
         mDeleteAfter = (CheckBox) view.findViewById(R.id.decrypt_file_delete_after_decryption);
-        mDecryptButton = (BootstrapButton) view.findViewById(R.id.decrypt_file_action_decrypt);
+        mDecryptButton = view.findViewById(R.id.decrypt_file_action_decrypt);
         mBrowse.setOnClickListener(new View.OnClickListener() {
             public void onClick(View v) {
                 FileHelper.openFile(DecryptFileFragment.this, mFilename.getText().toString(), "*/*",

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptFragment.java

@@ -192,7 +192,7 @@ public class DecryptFragment extends Fragment {
             mLookupKey.setVisibility(View.GONE);
 
             // successful decryption-only
-            mResultLayout.setBackgroundColor(getResources().getColor(R.color.result_blue));
+            mResultLayout.setBackgroundColor(getResources().getColor(R.color.result_purple));
             mResultText.setText(R.string.decrypt_result_decrypted);
         }
     }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DecryptMessageFragment.java

@@ -47,8 +47,8 @@ public class DecryptMessageFragment extends DecryptFragment {
 
     // view
     private EditText mMessage;
-    private BootstrapButton mDecryptButton;
-    private BootstrapButton mDecryptFromCLipboardButton;
+    private View mDecryptButton;
+    private View mDecryptFromCLipboardButton;
 
     // model
     private String mCiphertext;
@@ -61,8 +61,8 @@ public class DecryptMessageFragment extends DecryptFragment {
         View view = inflater.inflate(R.layout.decrypt_message_fragment, container, false);
 
         mMessage = (EditText) view.findViewById(R.id.message);
-        mDecryptButton = (BootstrapButton) view.findViewById(R.id.action_decrypt);
-        mDecryptFromCLipboardButton = (BootstrapButton) view.findViewById(R.id.action_decrypt_from_clipboard);
+        mDecryptButton = view.findViewById(R.id.action_decrypt);
+        mDecryptFromCLipboardButton = view.findViewById(R.id.action_decrypt_from_clipboard);
         mDecryptButton.setOnClickListener(new OnClickListener() {
             @Override
             public void onClick(View v) {
@@ -108,11 +108,11 @@ public class DecryptMessageFragment extends DecryptFragment {
                 mCiphertext = matcher.group(1);
                 decryptStart(null);
             } else {
-                AppMsg.makeText(getActivity(), R.string.error_invalid_data, AppMsg.STYLE_INFO)
+                AppMsg.makeText(getActivity(), R.string.error_invalid_data, AppMsg.STYLE_ALERT)
                         .show();
             }
         } else {
-            AppMsg.makeText(getActivity(), R.string.error_invalid_data, AppMsg.STYLE_INFO)
+            AppMsg.makeText(getActivity(), R.string.error_invalid_data, AppMsg.STYLE_ALERT)
                     .show();
         }
     }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EditKeyActivity.java

@@ -60,6 +60,7 @@ import org.sufficientlysecure.keychain.service.KeychainIntentService;
 import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
 import org.sufficientlysecure.keychain.service.PassphraseCacheService;
 import org.sufficientlysecure.keychain.service.SaveKeyringParcel;
+import org.sufficientlysecure.keychain.ui.dialog.CustomAlertDialogBuilder;
 import org.sufficientlysecure.keychain.ui.dialog.PassphraseDialogFragment;
 import org.sufficientlysecure.keychain.ui.dialog.SetPassphraseDialogFragment;
 import org.sufficientlysecure.keychain.ui.widget.Editor;
@@ -502,7 +503,7 @@ public class EditKeyActivity extends ActionBarActivity implements EditorListener
             int curID = 0;
             for (String userID : userIDs) {
                 if (userID.equals("") && (!userID.equals(originalIDs.get(curID)) || newIDs.get(curID))) {
-                    AlertDialog.Builder alert = new AlertDialog.Builder(
+                    CustomAlertDialogBuilder alert = new CustomAlertDialogBuilder(
                             EditKeyActivity.this);
 
                     alert.setIcon(R.drawable.ic_dialog_alert_holo_light);
@@ -525,7 +526,7 @@ public class EditKeyActivity extends ActionBarActivity implements EditorListener
                             }
                     );
                     alert.setCancelable(false);
-                    alert.create().show();
+                    alert.show();
                     return;
                 }
                 curID++;
@@ -614,7 +615,7 @@ public class EditKeyActivity extends ActionBarActivity implements EditorListener
 
     private void cancelClicked() {
         if (needsSaving()) { //ask if we want to save
-            AlertDialog.Builder alert = new AlertDialog.Builder(
+            CustomAlertDialogBuilder alert = new CustomAlertDialogBuilder(
                     EditKeyActivity.this);
 
             alert.setIcon(R.drawable.ic_dialog_alert_holo_light);
@@ -637,7 +638,7 @@ public class EditKeyActivity extends ActionBarActivity implements EditorListener
                         }
                     });
             alert.setCancelable(false);
-            alert.create().show();
+            alert.show();
         } else {
             setResult(RESULT_CANCELED);
             finish();

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptActivity.java

@@ -27,7 +27,6 @@ import android.widget.Toast;
 
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.helper.ActionBarHelper;
 import org.sufficientlysecure.keychain.helper.FileHelper;
 import org.sufficientlysecure.keychain.ui.adapter.PagerTabStripAdapter;
 import org.sufficientlysecure.keychain.util.Log;
@@ -145,26 +144,28 @@ public class EncryptActivity extends DrawerActivity implements
 
         setContentView(R.layout.encrypt_activity);
 
-        // set actionbar without home button if called from another app
-        ActionBarHelper.setBackButton(this);
-
         initView();
 
-        setupDrawerNavigation(savedInstanceState);
+        // if called with an intent action, do not init drawer navigation
+        if (ACTION_ENCRYPT.equals(getIntent().getAction())) {
+            // TODO: back button to key?
+        } else {
+            setupDrawerNavigation(savedInstanceState);
+        }
 
         // Handle intent actions
         handleActions(getIntent());
 
         mTabsAdapterMode.addTab(EncryptAsymmetricFragment.class,
-            mAsymmetricFragmentBundle, getString(R.string.label_asymmetric));
+                mAsymmetricFragmentBundle, getString(R.string.label_asymmetric));
         mTabsAdapterMode.addTab(EncryptSymmetricFragment.class,
-            mSymmetricFragmentBundle, getString(R.string.label_symmetric));
+                mSymmetricFragmentBundle, getString(R.string.label_symmetric));
         mViewPagerMode.setCurrentItem(mSwitchToMode);
 
         mTabsAdapterContent.addTab(EncryptMessageFragment.class,
-            mMessageFragmentBundle, getString(R.string.label_message));
+                mMessageFragmentBundle, getString(R.string.label_message));
         mTabsAdapterContent.addTab(EncryptFileFragment.class,
-            mFileFragmentBundle, getString(R.string.label_file));
+                mFileFragmentBundle, getString(R.string.label_file));
         mViewPagerContent.setCurrentItem(mSwitchToContent);
     }
 
@@ -217,9 +218,9 @@ public class EncryptActivity extends DrawerActivity implements
 
         // preselect keys given by intent
         mAsymmetricFragmentBundle.putLongArray(EncryptAsymmetricFragment.ARG_ENCRYPTION_KEY_IDS,
-            encryptionKeyIds);
+                encryptionKeyIds);
         mAsymmetricFragmentBundle.putLong(EncryptAsymmetricFragment.ARG_SIGNATURE_KEY_ID,
-            signatureKeyId);
+                signatureKeyId);
         mSwitchToMode = PAGER_MODE_ASYMMETRIC;
 
         /**
@@ -241,9 +242,10 @@ public class EncryptActivity extends DrawerActivity implements
             } else {
                 Log.e(Constants.TAG,
                         "Direct binary data without actual file in filesystem is not supported " +
-                        "by Intents. Please use the Remote Service API!");
-                Toast.makeText(this, R.string.error_only_files_are_supported, Toast.LENGTH_LONG)
-                        .show();
+                                "by Intents. Please use the Remote Service API!"
+                );
+                Toast.makeText(this, R.string.error_only_files_are_supported,
+                        Toast.LENGTH_LONG).show();
                 // end activity
                 finish();
             }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptAsymmetricFragment.java

@@ -220,9 +220,6 @@ public class EncryptAsymmetricFragment extends Fragment {
     private void selectPublicKeys() {
         Intent intent = new Intent(getActivity(), SelectPublicKeyActivity.class);
         Vector<Long> keyIds = new Vector<Long>();
-        if (mSecretKeyId != 0) {
-            keyIds.add(mSecretKeyId);
-        }
         if (mEncryptionKeyIds != null && mEncryptionKeyIds.length > 0) {
             for (int i = 0; i < mEncryptionKeyIds.length; ++i) {
                 keyIds.add(mEncryptionKeyIds[i]);

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptFileFragment.java

@@ -67,7 +67,7 @@ public class EncryptFileFragment extends Fragment {
     private CheckBox mDeleteAfter = null;
     private CheckBox mShareAfter = null;
     private BootstrapButton mBrowse = null;
-    private BootstrapButton mEncryptFile;
+    private View mEncryptFile;
 
     private FileDialogFragment mFileDialog;
 
@@ -92,7 +92,7 @@ public class EncryptFileFragment extends Fragment {
     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
         View view = inflater.inflate(R.layout.encrypt_file_fragment, container, false);
 
-        mEncryptFile = (BootstrapButton) view.findViewById(R.id.action_encrypt_file);
+        mEncryptFile = view.findViewById(R.id.action_encrypt_file);
         mEncryptFile.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptMessageFragment.java

@@ -28,9 +28,8 @@ import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.EditText;
+import android.widget.TextView;
 
-import com.beardedhen.androidbootstrap.BootstrapButton;
 import com.devspark.appmsg.AppMsg;
 
 import org.sufficientlysecure.keychain.Constants;
@@ -46,9 +45,9 @@ import org.sufficientlysecure.keychain.util.Log;
 public class EncryptMessageFragment extends Fragment {
     public static final String ARG_TEXT = "text";
 
-    private EditText mMessage = null;
-    private BootstrapButton mEncryptShare;
-    private BootstrapButton mEncryptClipboard;
+    private TextView mMessage = null;
+    private View mEncryptShare;
+    private View mEncryptClipboard;
 
     private EncryptActivityInterface mEncryptInterface;
 
@@ -70,9 +69,9 @@ public class EncryptMessageFragment extends Fragment {
     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
         View view = inflater.inflate(R.layout.encrypt_message_fragment, container, false);
 
-        mMessage = (EditText) view.findViewById(R.id.message);
-        mEncryptClipboard = (BootstrapButton) view.findViewById(R.id.action_encrypt_clipboard);
-        mEncryptShare = (BootstrapButton) view.findViewById(R.id.action_encrypt_share);
+        mMessage = (TextView) view.findViewById(R.id.message);
+        mEncryptClipboard = view.findViewById(R.id.action_encrypt_clipboard);
+        mEncryptShare = view.findViewById(R.id.action_encrypt_share);
         mEncryptClipboard.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/HelpAboutFragment.java

@@ -45,7 +45,7 @@ public class HelpAboutFragment extends Fragment {
         HtmlTextView aboutTextView = (HtmlTextView) view.findViewById(R.id.help_about_text);
 
         // load html from raw resource (Parsing handled by HtmlTextView library)
-        aboutTextView.setHtmlFromRawResource(getActivity(), R.raw.help_about);
+        aboutTextView.setHtmlFromRawResource(getActivity(), R.raw.help_about, true);
 
         // no flickering when clicking textview for Android < 4
         aboutTextView.setTextColor(getResources().getColor(android.R.color.black));

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/HelpActivity.java

@@ -24,7 +24,9 @@ import android.support.v7.app.ActionBar;
 import android.support.v7.app.ActionBarActivity;
 
 import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.ui.adapter.PagerTabStripAdapter;
 import org.sufficientlysecure.keychain.ui.adapter.TabsAdapter;
+import org.sufficientlysecure.keychain.util.SlidingTabLayout;
 
 public class HelpActivity extends ActionBarActivity {
     public static final String EXTRA_SELECTED_TAB = "selected_tab";
@@ -37,25 +39,27 @@ public class HelpActivity extends ActionBarActivity {
     public static final int TAB_ABOUT = 5;
 
     ViewPager mViewPager;
-    TabsAdapter mTabsAdapter;
+    private PagerTabStripAdapter mTabsAdapter;
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
-        setContentView(R.layout.help_activity);
-
-        mViewPager = (ViewPager) findViewById(R.id.pager);
-
         final ActionBar actionBar = getSupportActionBar();
         actionBar.setDisplayShowTitleEnabled(true);
         actionBar.setDisplayHomeAsUpEnabled(false);
         actionBar.setHomeButtonEnabled(false);
-        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
 
-        mTabsAdapter = new TabsAdapter(this, mViewPager);
+        setContentView(R.layout.help_activity);
 
-        int selectedTab = 0;
+        mViewPager = (ViewPager) findViewById(R.id.pager);
+        SlidingTabLayout slidingTabLayout =
+                (SlidingTabLayout) findViewById(R.id.sliding_tab_layout);
+
+        mTabsAdapter = new PagerTabStripAdapter(this);
+        mViewPager.setAdapter(mTabsAdapter);
+
+        int selectedTab = TAB_START;
         Intent intent = getIntent();
         if (intent.getExtras() != null && intent.getExtras().containsKey(EXTRA_SELECTED_TAB)) {
             selectedTab = intent.getExtras().getInt(EXTRA_SELECTED_TAB);
@@ -63,30 +67,36 @@ public class HelpActivity extends ActionBarActivity {
 
         Bundle startBundle = new Bundle();
         startBundle.putInt(HelpHtmlFragment.ARG_HTML_FILE, R.raw.help_start);
-        mTabsAdapter.addTab(actionBar.newTab().setText(getString(R.string.help_tab_start)),
-                HelpHtmlFragment.class, startBundle, (selectedTab == TAB_START));
+        mTabsAdapter.addTab(HelpHtmlFragment.class, startBundle,
+                getString(R.string.help_tab_start));
 
         Bundle faqBundle = new Bundle();
         faqBundle.putInt(HelpHtmlFragment.ARG_HTML_FILE, R.raw.help_faq);
-        mTabsAdapter.addTab(actionBar.newTab().setText(getString(R.string.help_tab_faq)),
-                HelpHtmlFragment.class, faqBundle, (selectedTab == TAB_FAQ));
+        mTabsAdapter.addTab(HelpHtmlFragment.class, faqBundle,
+                getString(R.string.help_tab_faq));
 
         Bundle wotBundle = new Bundle();
         wotBundle.putInt(HelpHtmlFragment.ARG_HTML_FILE, R.raw.help_wot);
-        mTabsAdapter.addTab(actionBar.newTab().setText(getString(R.string.help_tab_wot)),
-                HelpHtmlFragment.class, wotBundle, (selectedTab == TAB_WOT));
+        mTabsAdapter.addTab(HelpHtmlFragment.class, wotBundle,
+                getString(R.string.help_tab_wot));
 
         Bundle nfcBundle = new Bundle();
         nfcBundle.putInt(HelpHtmlFragment.ARG_HTML_FILE, R.raw.help_nfc_beam);
-        mTabsAdapter.addTab(actionBar.newTab().setText(getString(R.string.help_tab_nfc_beam)),
-                HelpHtmlFragment.class, nfcBundle, (selectedTab == TAB_NFC));
+        mTabsAdapter.addTab(HelpHtmlFragment.class, nfcBundle,
+                getString(R.string.help_tab_nfc_beam));
 
         Bundle changelogBundle = new Bundle();
         changelogBundle.putInt(HelpHtmlFragment.ARG_HTML_FILE, R.raw.help_changelog);
-        mTabsAdapter.addTab(actionBar.newTab().setText(getString(R.string.help_tab_changelog)),
-                HelpHtmlFragment.class, changelogBundle, (selectedTab == TAB_CHANGELOG));
+        mTabsAdapter.addTab(HelpHtmlFragment.class, changelogBundle,
+                getString(R.string.help_tab_changelog));
 
-        mTabsAdapter.addTab(actionBar.newTab().setText(getString(R.string.help_tab_about)),
-                HelpAboutFragment.class, null, (selectedTab == TAB_ABOUT));
+        mTabsAdapter.addTab(HelpAboutFragment.class, null,
+                getString(R.string.help_tab_about));
+
+        // NOTE: must be after adding the tabs!
+        slidingTabLayout.setViewPager(mViewPager);
+
+        // switch to tab selected by extra
+        mViewPager.setCurrentItem(selectedTab);
     }
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/HelpHtmlFragment.java

@@ -66,7 +66,7 @@ public class HelpHtmlFragment extends Fragment {
         scroller.addView(text);
 
         // load html from raw resource (Parsing handled by HtmlTextView library)
-        text.setHtmlFromRawResource(getActivity(), mHtmlFile);
+        text.setHtmlFromRawResource(getActivity(), mHtmlFile, true);
 
         // no flickering when clicking textview for Android < 4
         text.setTextColor(getResources().getColor(android.R.color.black));

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysActivity.java

@@ -38,16 +38,14 @@ import android.view.View;
 import android.view.View.OnClickListener;
 import android.widget.ArrayAdapter;
 
-import com.beardedhen.androidbootstrap.BootstrapButton;
 import com.devspark.appmsg.AppMsg;
 
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.helper.ActionBarHelper;
 import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
 import org.sufficientlysecure.keychain.service.KeychainIntentService;
 import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
-import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListEntry;
+import org.sufficientlysecure.keychain.keyimport.ImportKeysListEntry;
 import org.sufficientlysecure.keychain.ui.dialog.BadImportKeyDialogFragment;
 import org.sufficientlysecure.keychain.util.Log;
 
@@ -62,6 +60,8 @@ public class ImportKeysActivity extends ActionBarActivity implements ActionBar.O
             + "IMPORT_KEY_FROM_KEYSERVER";
     public static final String ACTION_IMPORT_KEY_FROM_KEYSERVER_AND_RETURN = Constants.INTENT_PREFIX
             + "IMPORT_KEY_FROM_KEY_SERVER_AND_RETURN";
+    public static final String ACTION_IMPORT_KEY_FROM_KEYBASE = Constants.INTENT_PREFIX
+            + "IMPORT_KEY_FROM_KEYBASE";
 
     // Actions for internal use only:
     public static final String ACTION_IMPORT_KEY_FROM_FILE = Constants.INTENT_PREFIX
@@ -85,20 +85,22 @@ public class ImportKeysActivity extends ActionBarActivity implements ActionBar.O
     private ImportKeysListFragment mListFragment;
     private String[] mNavigationStrings;
     private Fragment mCurrentFragment;
-    private BootstrapButton mImportButton;
+    private View mImportButton;
 
     private static final Class[] NAVIGATION_CLASSES = new Class[]{
             ImportKeysServerFragment.class,
             ImportKeysFileFragment.class,
             ImportKeysQrCodeFragment.class,
             ImportKeysClipboardFragment.class,
-            ImportKeysNFCFragment.class
+            ImportKeysNFCFragment.class,
+            ImportKeysKeybaseFragment.class
     };
     private static final int NAV_SERVER = 0;
     private static final int NAV_FILE = 1;
     private static final int NAV_QR_CODE = 2;
     private static final int NAV_CLIPBOARD = 3;
     private static final int NAV_NFC = 4;
+    private static final int NAV_KEYBASE = 5;
 
     private int mCurrentNavPosition = -1;
 
@@ -108,7 +110,7 @@ public class ImportKeysActivity extends ActionBarActivity implements ActionBar.O
 
         setContentView(R.layout.import_keys_activity);
 
-        mImportButton = (BootstrapButton) findViewById(R.id.import_import);
+        mImportButton = findViewById(R.id.import_import);
         mImportButton.setOnClickListener(new OnClickListener() {
             @Override
             public void onClick(View v) {
@@ -121,7 +123,6 @@ public class ImportKeysActivity extends ActionBarActivity implements ActionBar.O
         if (ACTION_IMPORT_KEY_FROM_KEYSERVER_AND_RETURN.equals(getIntent().getAction())) {
             setTitle(R.string.nav_import);
         } else {
-            ActionBarHelper.setBackButton(this);
             getSupportActionBar().setDisplayShowTitleEnabled(false);
 
             // set drop down navigation
@@ -236,6 +237,12 @@ public class ImportKeysActivity extends ActionBarActivity implements ActionBar.O
             // NOTE: this only displays the appropriate fragment, no actions are taken
             loadNavFragment(NAV_NFC, null);
 
+            // no immediate actions!
+            startListFragment(savedInstanceState, null, null, null);
+        } else if (ACTION_IMPORT_KEY_FROM_KEYBASE.equals(action)) {
+            // NOTE: this only displays the appropriate fragment, no actions are taken
+            loadNavFragment(NAV_KEYBASE, null);
+
             // no immediate actions!
             startListFragment(savedInstanceState, null, null, null);
         } else {
@@ -340,8 +347,8 @@ public class ImportKeysActivity extends ActionBarActivity implements ActionBar.O
         startListFragment(savedInstanceState, null, null, query);
     }
 
-    public void loadCallback(byte[] importData, Uri dataUri, String serverQuery, String keyServer) {
-        mListFragment.loadNew(importData, dataUri, serverQuery, keyServer);
+    public void loadCallback(byte[] importData, Uri dataUri, String serverQuery, String keyServer, String keybaseQuery) {
+        mListFragment.loadNew(importData, dataUri, serverQuery, keyServer, keybaseQuery);
     }
 
     /**
@@ -449,6 +456,31 @@ public class ImportKeysActivity extends ActionBarActivity implements ActionBar.O
 
             // start service with intent
             startService(intent);
+        } else if (mListFragment.getKeybaseQuery() != null) {
+            // Send all information needed to service to query keys in other thread
+            Intent intent = new Intent(this, KeychainIntentService.class);
+
+            intent.setAction(KeychainIntentService.ACTION_IMPORT_KEYBASE_KEYS);
+
+            // fill values for this action
+            Bundle data = new Bundle();
+
+            // get selected key entries
+            ArrayList<ImportKeysListEntry> selectedEntries = mListFragment.getSelectedData();
+            data.putParcelableArrayList(KeychainIntentService.DOWNLOAD_KEY_LIST, selectedEntries);
+
+            intent.putExtra(KeychainIntentService.EXTRA_DATA, data);
+
+            // Create a new Messenger for the communication back
+            Messenger messenger = new Messenger(saveHandler);
+            intent.putExtra(KeychainIntentService.EXTRA_MESSENGER, messenger);
+
+            // show progress dialog
+            saveHandler.showProgressDialog(this);
+
+            // start service with intent
+            startService(intent);
+
         } else {
             AppMsg.makeText(this, R.string.error_nothing_import, AppMsg.STYLE_ALERT).show();
         }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysClipboardFragment.java

@@ -71,7 +71,7 @@ public class ImportKeysClipboardFragment extends Fragment {
                         return;
                     }
                 }
-                mImportActivity.loadCallback(sendText.getBytes(), null, null, null);
+                mImportActivity.loadCallback(sendText.getBytes(), null, null, null, null);
             }
         });
 

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysFileFragment.java

@@ -85,7 +85,7 @@ public class ImportKeysFileFragment extends Fragment {
                 if (resultCode == Activity.RESULT_OK && data != null) {
 
                     // load data
-                    mImportActivity.loadCallback(null, data.getData(), null, null);
+                    mImportActivity.loadCallback(null, data.getData(), null, null, null);
                 }
 
                 break;

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysKeybaseFragment.java

@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.sufficientlysecure.keychain.ui;
+
+import android.content.Context;
+import android.support.v4.app.Fragment;
+import android.os.Bundle;
+import android.view.KeyEvent;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.inputmethod.EditorInfo;
+import android.view.inputmethod.InputMethodManager;
+import android.widget.EditText;
+import android.widget.TextView;
+
+import com.beardedhen.androidbootstrap.BootstrapButton;
+
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.util.Log;
+
+/**
+ * Import public keys from the Keybase.io directory.  First cut: just raw search.
+ *   TODO: make a pick list of the people you’re following on keybase
+ */
+public class ImportKeysKeybaseFragment extends Fragment {
+
+    private ImportKeysActivity mImportActivity;
+    private BootstrapButton mSearchButton;
+    private EditText mQueryEditText;
+
+    public static final String ARG_QUERY = "query";
+
+    /**
+     * Creates new instance of this fragment
+     */
+    public static ImportKeysKeybaseFragment newInstance() {
+        ImportKeysKeybaseFragment frag = new ImportKeysKeybaseFragment();
+
+        Bundle args = new Bundle();
+        frag.setArguments(args);
+
+        return frag;
+    }
+
+    /**
+     * Inflate the layout for this fragment
+     */
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        View view = inflater.inflate(R.layout.import_keys_keybase_fragment, container, false);
+
+        mQueryEditText = (EditText) view.findViewById(R.id.import_keybase_query);
+
+        mSearchButton = (BootstrapButton) view.findViewById(R.id.import_keybase_search);
+        mSearchButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                String query = mQueryEditText.getText().toString();
+                search(query);
+
+                // close keyboard after pressing search
+                InputMethodManager imm =
+                        (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
+                imm.hideSoftInputFromWindow(mQueryEditText.getWindowToken(), 0);
+            }
+        });
+
+        mQueryEditText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
+            @Override
+            public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
+                if (actionId == EditorInfo.IME_ACTION_SEARCH) {
+                    String query = mQueryEditText.getText().toString();
+                    search(query);
+
+                    // Don't return true to let the keyboard close itself after pressing search
+                    return false;
+                }
+                return false;
+            }
+        });
+
+        return view;
+    }
+
+    @Override
+    public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+
+        mImportActivity = (ImportKeysActivity) getActivity();
+
+        // set displayed values
+        if (getArguments() != null) {
+            if (getArguments().containsKey(ARG_QUERY)) {
+                String query = getArguments().getString(ARG_QUERY);
+                mQueryEditText.setText(query, TextView.BufferType.EDITABLE);
+            }
+        }
+    }
+
+    private void search(String query) {
+        mImportActivity.loadCallback(null, null, null, null, query);
+    }
+}

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysListFragment.java

@@ -33,11 +33,12 @@ import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.helper.Preferences;
 import org.sufficientlysecure.keychain.ui.adapter.AsyncTaskResultWrapper;
 import org.sufficientlysecure.keychain.ui.adapter.ImportKeysAdapter;
-import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListEntry;
+import org.sufficientlysecure.keychain.keyimport.ImportKeysListEntry;
+import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListKeybaseLoader;
 import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListLoader;
 import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListServerLoader;
 import org.sufficientlysecure.keychain.util.InputData;
-import org.sufficientlysecure.keychain.util.KeyServer;
+import org.sufficientlysecure.keychain.keyimport.KeyServer;
 import org.sufficientlysecure.keychain.util.Log;
 
 import java.io.ByteArrayInputStream;
@@ -60,9 +61,11 @@ public class ImportKeysListFragment extends ListFragment implements
     private Uri mDataUri;
     private String mServerQuery;
     private String mKeyServer;
+    private String mKeybaseQuery;
 
     private static final int LOADER_ID_BYTES = 0;
     private static final int LOADER_ID_SERVER_QUERY = 1;
+    private static final int LOADER_ID_KEYBASE = 2;
 
     public byte[] getKeyBytes() {
         return mKeyBytes;
@@ -76,6 +79,10 @@ public class ImportKeysListFragment extends ListFragment implements
         return mServerQuery;
     }
 
+    public String getKeybaseQuery() {
+        return mKeybaseQuery;
+    }
+
     public String getKeyServer() {
         return mKeyServer;
     }
@@ -148,6 +155,16 @@ public class ImportKeysListFragment extends ListFragment implements
             // give arguments to onCreateLoader()
             getLoaderManager().initLoader(LOADER_ID_SERVER_QUERY, null, this);
         }
+
+        if (mKeybaseQuery != null) {
+            // Start out with a progress indicator.
+            setListShown(false);
+
+            // Prepare the loader. Either re-connect with an existing one,
+            // or start a new one.
+            // give arguments to onCreateLoader()
+            getLoaderManager().initLoader(LOADER_ID_KEYBASE, null, this);
+        }
     }
 
     @Override
@@ -157,16 +174,18 @@ public class ImportKeysListFragment extends ListFragment implements
         // Select checkbox!
         // Update underlying data and notify adapter of change. The adapter will
         // update the view automatically.
+
         ImportKeysListEntry entry = mAdapter.getItem(position);
         entry.setSelected(!entry.isSelected());
         mAdapter.notifyDataSetChanged();
     }
 
-    public void loadNew(byte[] keyBytes, Uri dataUri, String serverQuery, String keyServer) {
+    public void loadNew(byte[] keyBytes, Uri dataUri, String serverQuery, String keyServer, String keybaseQuery) {
         mKeyBytes = keyBytes;
         mDataUri = dataUri;
         mServerQuery = serverQuery;
         mKeyServer = keyServer;
+        mKeybaseQuery = keybaseQuery;
 
         if (mKeyBytes != null || mDataUri != null) {
             // Start out with a progress indicator.
@@ -181,6 +200,13 @@ public class ImportKeysListFragment extends ListFragment implements
 
             getLoaderManager().restartLoader(LOADER_ID_SERVER_QUERY, null, this);
         }
+
+        if (mKeybaseQuery != null) {
+            // Start out with a progress indicator.
+            setListShown(false);
+
+            getLoaderManager().restartLoader(LOADER_ID_KEYBASE, null, this);
+        }
     }
 
     @Override
@@ -194,6 +220,9 @@ public class ImportKeysListFragment extends ListFragment implements
             case LOADER_ID_SERVER_QUERY: {
                 return new ImportKeysListServerLoader(getActivity(), mServerQuery, mKeyServer);
             }
+            case LOADER_ID_KEYBASE: {
+                return new ImportKeysListKeybaseLoader(getActivity(), mKeybaseQuery);
+            }
 
             default:
                 return null;
@@ -248,7 +277,7 @@ public class ImportKeysListFragment extends ListFragment implements
                 if (error == null) {
                     AppMsg.makeText(
                             getActivity(), getResources().getQuantityString(R.plurals.keys_found,
-                            mAdapter.getCount(), mAdapter.getCount()),
+                                    mAdapter.getCount(), mAdapter.getCount()),
                             AppMsg.STYLE_INFO
                     ).show();
                 } else if (error instanceof KeyServer.InsufficientQuery) {
@@ -263,6 +292,19 @@ public class ImportKeysListFragment extends ListFragment implements
                 }
                 break;
 
+            case LOADER_ID_KEYBASE:
+
+                if (error == null) {
+                    AppMsg.makeText(
+                            getActivity(), getResources().getQuantityString(R.plurals.keys_found,
+                                    mAdapter.getCount(), mAdapter.getCount()),
+                            AppMsg.STYLE_INFO
+                    ).show();
+                }  else if (error instanceof KeyServer.QueryException) {
+                    AppMsg.makeText(getActivity(), R.string.error_keyserver_query,
+                            AppMsg.STYLE_ALERT).show();
+                }
+
             default:
                 break;
         }
@@ -279,6 +321,10 @@ public class ImportKeysListFragment extends ListFragment implements
                 // Clear the data in the adapter.
                 mAdapter.clear();
                 break;
+            case LOADER_ID_KEYBASE:
+                // Clear the data in the adapter.
+                mAdapter.clear();
+                break;
             default:
                 break;
         }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysQrCodeFragment.java

@@ -117,7 +117,7 @@ public class ImportKeysQrCodeFragment extends Fragment {
 
                     // is this a full key encoded as qr code?
                     if (scannedContent.startsWith("-----BEGIN PGP")) {
-                        mImportActivity.loadCallback(scannedContent.getBytes(), null, null, null);
+                        mImportActivity.loadCallback(scannedContent.getBytes(), null, null, null, null);
                         return;
                     }
 
@@ -197,7 +197,7 @@ public class ImportKeysQrCodeFragment extends Fragment {
             for (String in : mScannedContent) {
                 result += in;
             }
-            mImportActivity.loadCallback(result.getBytes(), null, null, null);
+            mImportActivity.loadCallback(result.getBytes(), null, null, null, null);
         }
     }
 

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ImportKeysServerFragment.java

@@ -151,7 +151,7 @@ public class ImportKeysServerFragment extends Fragment {
     }
 
     private void search(String query, String keyServer) {
-        mImportActivity.loadCallback(null, null, query, keyServer);
+        mImportActivity.loadCallback(null, null, query, keyServer, null);
     }
 
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/KeyListFragment.java

@@ -29,7 +29,6 @@ import android.os.Bundle;
 import android.os.Handler;
 import android.os.Message;
 import android.os.Messenger;
-import android.support.v4.app.Fragment;
 import android.support.v4.app.LoaderManager;
 import android.support.v4.content.CursorLoader;
 import android.support.v4.content.Loader;
@@ -45,11 +44,10 @@ import android.view.MenuItem;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.ViewGroup;
-import android.view.animation.AnimationUtils;
 import android.widget.AbsListView.MultiChoiceModeListener;
 import android.widget.AdapterView;
-import android.widget.Button;
 import android.widget.FrameLayout;
+import android.widget.ImageButton;
 import android.widget.ImageView;
 import android.widget.ListView;
 import android.widget.TextView;
@@ -77,18 +75,13 @@ import se.emilsjolander.stickylistheaders.StickyListHeadersListView;
  * Public key list with sticky list headers. It does _not_ extend ListFragment because it uses
  * StickyListHeaders library which does not extend upon ListView.
  */
-public class KeyListFragment extends Fragment
+public class KeyListFragment extends LoaderFragment
         implements SearchView.OnQueryTextListener, AdapterView.OnItemClickListener,
         LoaderManager.LoaderCallbacks<Cursor> {
 
     private KeyListAdapter mAdapter;
     private StickyListHeadersListView mStickyList;
 
-    // rebuild functionality of ListFragment, http://stackoverflow.com/a/12504097
-    boolean mListShown;
-    View mProgressContainer;
-    View mListContainer;
-
     private String mCurQuery;
     private SearchView mSearchView;
     // empty list layout
@@ -100,14 +93,15 @@ public class KeyListFragment extends Fragment
      * Load custom layout with StickyListView from library
      */
     @Override
-    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
-        View root = inflater.inflate(R.layout.key_list_fragment, container, false);
+    public View onCreateView(LayoutInflater inflater, ViewGroup superContainer, Bundle savedInstanceState) {
+        View root = super.onCreateView(inflater, superContainer, savedInstanceState);
+        View view = inflater.inflate(R.layout.key_list_fragment, getContainer());
 
-        mStickyList = (StickyListHeadersListView) root.findViewById(R.id.key_list_list);
+        mStickyList = (StickyListHeadersListView) view.findViewById(R.id.key_list_list);
         mStickyList.setOnItemClickListener(this);
 
         // empty view
-        mButtonEmptyCreate = (BootstrapButton) root.findViewById(R.id.key_list_empty_button_create);
+        mButtonEmptyCreate = (BootstrapButton) view.findViewById(R.id.key_list_empty_button_create);
         mButtonEmptyCreate.setOnClickListener(new OnClickListener() {
 
             @Override
@@ -119,7 +113,7 @@ public class KeyListFragment extends Fragment
                 startActivityForResult(intent, 0);
             }
         });
-        mButtonEmptyImport = (BootstrapButton) root.findViewById(R.id.key_list_empty_button_import);
+        mButtonEmptyImport = (BootstrapButton) view.findViewById(R.id.key_list_empty_button_import);
         mButtonEmptyImport.setOnClickListener(new OnClickListener() {
 
             @Override
@@ -130,11 +124,6 @@ public class KeyListFragment extends Fragment
             }
         });
 
-        // rebuild functionality of ListFragment, http://stackoverflow.com/a/12504097
-        mListContainer = root.findViewById(R.id.key_list_list_container);
-        mProgressContainer = root.findViewById(R.id.key_list_progress_container);
-        mListShown = true;
-
         return root;
     }
 
@@ -233,9 +222,8 @@ public class KeyListFragment extends Fragment
         // We have a menu item to show in action bar.
         setHasOptionsMenu(true);
 
-        // NOTE: Not supported by StickyListHeader, but reimplemented here
         // Start out with a progress indicator.
-        setListShown(false);
+        setContentShown(false);
 
         // Create an empty adapter we will use to display the loaded data.
         mAdapter = new KeyListAdapter(getActivity(), null, 0);
@@ -297,12 +285,11 @@ public class KeyListFragment extends Fragment
         // this view is made visible if no data is available
         mStickyList.setEmptyView(getActivity().findViewById(R.id.key_list_empty));
 
-        // NOTE: Not supported by StickyListHeader, but reimplemented here
         // The list should now be shown.
         if (isResumed()) {
-            setListShown(true);
+            setContentShown(true);
         } else {
-            setListShownNoAnimation(true);
+            setContentShownNoAnimation(true);
         }
     }
 
@@ -380,6 +367,9 @@ public class KeyListFragment extends Fragment
         // Execute this when searching
         mSearchView.setOnQueryTextListener(this);
 
+        View searchPlate = mSearchView.findViewById(android.support.v7.appcompat.R.id.search_plate);
+        searchPlate.setBackgroundResource(R.drawable.keychaintheme_searchview_holo_light);
+
         // Erase search result without focus
         MenuItemCompat.setOnActionExpandListener(searchItem, new MenuItemCompat.OnActionExpandListener() {
             @Override
@@ -414,43 +404,6 @@ public class KeyListFragment extends Fragment
         return true;
     }
 
-    // rebuild functionality of ListFragment, http://stackoverflow.com/a/12504097
-    public void setListShown(boolean shown, boolean animate) {
-        if (mListShown == shown) {
-            return;
-        }
-        mListShown = shown;
-        if (shown) {
-            if (animate) {
-                mProgressContainer.startAnimation(AnimationUtils.loadAnimation(
-                        getActivity(), android.R.anim.fade_out));
-                mListContainer.startAnimation(AnimationUtils.loadAnimation(
-                        getActivity(), android.R.anim.fade_in));
-            }
-            mProgressContainer.setVisibility(View.GONE);
-            mListContainer.setVisibility(View.VISIBLE);
-        } else {
-            if (animate) {
-                mProgressContainer.startAnimation(AnimationUtils.loadAnimation(
-                        getActivity(), android.R.anim.fade_in));
-                mListContainer.startAnimation(AnimationUtils.loadAnimation(
-                        getActivity(), android.R.anim.fade_out));
-            }
-            mProgressContainer.setVisibility(View.VISIBLE);
-            mListContainer.setVisibility(View.INVISIBLE);
-        }
-    }
-
-    // rebuild functionality of ListFragment, http://stackoverflow.com/a/12504097
-    public void setListShown(boolean shown) {
-        setListShown(shown, true);
-    }
-
-    // rebuild functionality of ListFragment, http://stackoverflow.com/a/12504097
-    public void setListShownNoAnimation(boolean shown) {
-        setListShown(shown, false);
-    }
-
     /**
      * Implements StickyListHeadersAdapter from library
      */
@@ -475,7 +428,7 @@ public class KeyListFragment extends Fragment
             TextView mMainUserIdRest;
             View mStatusDivider;
             FrameLayout mStatusLayout;
-            Button mButton;
+            ImageButton mButton;
             TextView mRevoked;
             ImageView mVerified;
         }
@@ -488,7 +441,7 @@ public class KeyListFragment extends Fragment
             holder.mMainUserIdRest = (TextView) view.findViewById(R.id.mainUserIdRest);
             holder.mStatusDivider = (View) view.findViewById(R.id.status_divider);
             holder.mStatusLayout = (FrameLayout) view.findViewById(R.id.status_layout);
-            holder.mButton = (Button) view.findViewById(R.id.edit);
+            holder.mButton = (ImageButton) view.findViewById(R.id.edit);
             holder.mRevoked = (TextView) view.findViewById(R.id.revoked);
             holder.mVerified = (ImageView) view.findViewById(R.id.verified);
             view.setTag(holder);

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/LoaderFragment.java

@@ -0,0 +1,78 @@
+package org.sufficientlysecure.keychain.ui;
+
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.animation.AnimationUtils;
+
+import org.sufficientlysecure.keychain.R;
+
+/** This is a fragment helper class, which implements a generic
+ * progressbar/container view.
+ *
+ * To use it in a fragment, simply subclass, use onCreateView to create the
+ * layout's root view, and ues getContainer() as root view of your subclass.
+ * The layout shows a progress bar by default, and can be switched to the
+ * actual contents by calling setContentShown().
+ * 
+ */
+public class LoaderFragment extends Fragment {
+    private boolean mContentShown;
+    private View mProgressContainer;
+    private ViewGroup mContainer;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        View root = inflater.inflate(R.layout.loader_layout, container, false);
+
+        mContentShown = true;
+        mContainer = (ViewGroup) root.findViewById(R.id.loader_container);
+        mProgressContainer = root.findViewById(R.id.loader_progress);
+
+        // content is not shown (by visibility statuses in the layout files)
+        mContentShown = false;
+
+        return root;
+
+    }
+
+    protected ViewGroup getContainer() {
+        return mContainer;
+    }
+
+    public void setContentShown(boolean shown, boolean animate) {
+        if (mContentShown == shown) {
+            return;
+        }
+        mContentShown = shown;
+        if (shown) {
+            if (animate) {
+                mProgressContainer.startAnimation(AnimationUtils.loadAnimation(
+                        getActivity(), android.R.anim.fade_out));
+                mContainer.startAnimation(AnimationUtils.loadAnimation(
+                        getActivity(), android.R.anim.fade_in));
+            }
+            mProgressContainer.setVisibility(View.GONE);
+            mContainer.setVisibility(View.VISIBLE);
+        } else {
+            if (animate) {
+                mProgressContainer.startAnimation(AnimationUtils.loadAnimation(
+                        getActivity(), android.R.anim.fade_in));
+                mContainer.startAnimation(AnimationUtils.loadAnimation(
+                        getActivity(), android.R.anim.fade_out));
+            }
+            mProgressContainer.setVisibility(View.VISIBLE);
+            mContainer.setVisibility(View.INVISIBLE);
+        }
+    }
+
+    public void setContentShown(boolean shown) {
+        setContentShown(shown, true);
+    }
+
+    public void setContentShownNoAnimation(boolean shown) {
+        setContentShown(shown, false);
+    }
+}

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/SelectSecretKeyFragment.java

@@ -56,7 +56,7 @@ public class SelectSecretKeyFragment extends ListFragment implements
 
         Bundle args = new Bundle();
         args.putBoolean(ARG_FILTER_CERTIFY, filterCertify);
-        args.putBoolean(ARG_FILTER_CERTIFY, filterSign);
+        args.putBoolean(ARG_FILTER_SIGN, filterSign);
         frag.setArguments(args);
 
         return frag;
@@ -124,7 +124,8 @@ public class SelectSecretKeyFragment extends ListFragment implements
                 KeyRings.CAN_CERTIFY,
                 // has sign may be any subkey
                 KeyRings.HAS_SIGN,
-                KeyRings.HAS_ANY_SECRET
+                KeyRings.HAS_ANY_SECRET,
+                KeyRings.HAS_SECRET
         };
 
         String where = KeyRings.HAS_ANY_SECRET + " = 1";
@@ -158,7 +159,7 @@ public class SelectSecretKeyFragment extends ListFragment implements
 
     private class SelectSecretKeyCursorAdapter extends SelectKeyCursorAdapter {
 
-        private int mIndexHasSign, mIndexCanCertify;
+        private int mIndexHasSign, mIndexCanCertify, mIndexHasSecret;
 
         public SelectSecretKeyCursorAdapter(Context context, Cursor c, int flags, ListView listView) {
             super(context, c, flags, listView);
@@ -170,6 +171,7 @@ public class SelectSecretKeyFragment extends ListFragment implements
             if (cursor != null) {
                 mIndexCanCertify = cursor.getColumnIndexOrThrow(KeyRings.CAN_CERTIFY);
                 mIndexHasSign = cursor.getColumnIndexOrThrow(KeyRings.HAS_SIGN);
+                mIndexHasSecret = cursor.getColumnIndexOrThrow(KeyRings.HAS_SECRET);
             }
         }
 
@@ -187,7 +189,8 @@ public class SelectSecretKeyFragment extends ListFragment implements
                 // Check if key is viable for our purposes (certify or sign)
                 if(mFilterCertify) {
                     // Only enable if can certify
-                    if (cursor.getInt(mIndexCanCertify) == 0) {
+                    if (cursor.getInt(mIndexCanCertify) == 0
+                            || cursor.getInt(mIndexHasSecret) == 0) {
                         h.status.setText(R.string.can_certify_not);
                     } else {
                         h.status.setText(R.string.can_certify);

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/UploadKeyActivity.java

@@ -23,15 +23,15 @@ import android.net.Uri;
 import android.os.Bundle;
 import android.os.Message;
 import android.os.Messenger;
+import android.support.v4.app.NavUtils;
 import android.support.v7.app.ActionBarActivity;
+import android.view.MenuItem;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.widget.ArrayAdapter;
 import android.widget.Spinner;
 import android.widget.Toast;
 
-import com.beardedhen.androidbootstrap.BootstrapButton;
-
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.helper.Preferences;
@@ -44,7 +44,7 @@ import org.sufficientlysecure.keychain.util.Log;
  * Sends the selected public key to a keyserver
  */
 public class UploadKeyActivity extends ActionBarActivity {
-    private BootstrapButton mUploadButton;
+    private View mUploadButton;
     private Spinner mKeyServerSpinner;
 
     private Uri mDataUri;
@@ -53,10 +53,10 @@ public class UploadKeyActivity extends ActionBarActivity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
-        setContentView(R.layout.key_server_export);
+        setContentView(R.layout.upload_key_activity);
 
-        mUploadButton = (BootstrapButton) findViewById(R.id.btn_export_to_server);
-        mKeyServerSpinner = (Spinner) findViewById(R.id.sign_key_keyserver);
+        mUploadButton = findViewById(R.id.upload_key_action_upload);
+        mKeyServerSpinner = (Spinner) findViewById(R.id.upload_key_keyserver);
 
         ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
                 android.R.layout.simple_spinner_item, Preferences.getPreferences(this)
@@ -129,4 +129,17 @@ public class UploadKeyActivity extends ActionBarActivity {
         // start service with intent
         startService(intent);
     }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case android.R.id.home: {
+                Intent viewIntent = NavUtils.getParentActivityIntent(this);
+                viewIntent.setData(KeychainContract.KeyRings.buildGenericKeyRingUri(mDataUri));
+                NavUtils.navigateUpTo(this, viewIntent);
+                return true;
+            }
+        }
+        return super.onOptionsItemSelected(item);
+    }
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewCertActivity.java

@@ -28,7 +28,6 @@ import android.support.v4.content.Loader;
 import android.support.v7.app.ActionBar;
 import android.support.v7.app.ActionBarActivity;
 import android.text.format.DateFormat;
-import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
 import android.widget.TextView;
@@ -73,11 +72,12 @@ public class ViewCertActivity extends ActionBarActivity
 
     private Uri mDataUri;
 
-    private long mSignerKeyId;
+    private long mCertifierKeyId;
 
-    private TextView mSigneeKey, mSigneeUid, mAlgorithm, mType, mRReason, mCreation;
-    private TextView mSignerKey, mSignerUid, mStatus;
+    private TextView mSigneeKey, mSigneeUid, mAlgorithm, mType, mReason, mCreation;
+    private TextView mCertifierKey, mCertifierUid, mStatus;
     private View mRowReason;
+    private View mViewCertifierButton;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -93,14 +93,16 @@ public class ViewCertActivity extends ActionBarActivity
         mSigneeUid = (TextView) findViewById(R.id.signee_uid);
         mAlgorithm = (TextView) findViewById(R.id.algorithm);
         mType = (TextView) findViewById(R.id.signature_type);
-        mRReason = (TextView) findViewById(R.id.reason);
+        mReason = (TextView) findViewById(R.id.reason);
         mCreation = (TextView) findViewById(R.id.creation);
 
-        mSignerKey = (TextView) findViewById(R.id.signer_key_id);
-        mSignerUid = (TextView) findViewById(R.id.signer_uid);
+        mCertifierKey = (TextView) findViewById(R.id.signer_key_id);
+        mCertifierUid = (TextView) findViewById(R.id.signer_uid);
 
         mRowReason = findViewById(R.id.row_reason);
 
+        mViewCertifierButton = findViewById(R.id.view_cert_view_cert_key);
+
         mDataUri = getIntent().getData();
         if (mDataUri == null) {
             Log.e(Constants.TAG, "Intent data missing. Should be Uri of key!");
@@ -121,7 +123,7 @@ public class ViewCertActivity extends ActionBarActivity
     @Override
     public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
         if (data.moveToFirst()) {
-            String signeeKey = "0x" + PgpKeyHelper.convertKeyIdToHex(data.getLong(INDEX_MASTER_KEY_ID));
+            String signeeKey = PgpKeyHelper.convertKeyIdToHex(data.getLong(INDEX_MASTER_KEY_ID));
             mSigneeKey.setText(signeeKey);
 
             String signeeUid = data.getString(INDEX_USER_ID);
@@ -130,22 +132,24 @@ public class ViewCertActivity extends ActionBarActivity
             Date creationDate = new Date(data.getLong(INDEX_CREATION) * 1000);
             mCreation.setText(DateFormat.getDateFormat(getApplicationContext()).format(creationDate));
 
-            mSignerKeyId = data.getLong(INDEX_KEY_ID_CERTIFIER);
-            String signerKey = "0x" + PgpKeyHelper.convertKeyIdToHex(mSignerKeyId);
-            mSignerKey.setText(signerKey);
+            mCertifierKeyId = data.getLong(INDEX_KEY_ID_CERTIFIER);
+            String certifierKey = PgpKeyHelper.convertKeyIdToHex(mCertifierKeyId);
+            mCertifierKey.setText(certifierKey);
 
-            String signerUid = data.getString(INDEX_SIGNER_UID);
-            if (signerUid != null) {
-                mSignerUid.setText(signerUid);
+            String certifierUid = data.getString(INDEX_SIGNER_UID);
+            if (certifierUid != null) {
+                mCertifierUid.setText(certifierUid);
             } else {
-                mSignerUid.setText(R.string.unknown_uid);
+                mCertifierUid.setText(R.string.unknown_uid);
             }
 
             PGPSignature sig = PgpConversionHelper.BytesToPGPSignature(data.getBlob(INDEX_DATA));
             try {
                 ProviderHelper providerHelper = new ProviderHelper(this);
+
                 CachedPublicKeyRing signeeRing = providerHelper.getCachedPublicKeyRing(data.getLong(INDEX_MASTER_KEY_ID));
                 CachedPublicKeyRing signerRing = providerHelper.getCachedPublicKeyRing(sig.getKeyID());
+
                 try {
                     signerRing.getSubkey().initSignature(sig);
                     if (signeeRing.getSubkey().verifySignature(sig, signeeUid)) {
@@ -191,27 +195,41 @@ public class ViewCertActivity extends ActionBarActivity
                             p = new RevocationReason(false, p.getData());
                         }
                         String reason = ((RevocationReason) p).getRevocationDescription();
-                        mRReason.setText(reason);
+                        mReason.setText(reason);
                         mRowReason.setVisibility(View.VISIBLE);
                     }
                     break;
                 }
             }
         }
+
+        // can't do this before the data is initialized
+        mViewCertifierButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                Intent viewIntent = new Intent(ViewCertActivity.this, ViewKeyActivity.class);
+
+                try {
+                    ProviderHelper providerHelper = new ProviderHelper(ViewCertActivity.this);
+                    long signerMasterKeyId = providerHelper.getMasterKeyId(
+                            KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(Long.toString(mCertifierKeyId))
+                    );
+                    viewIntent.setData(KeyRings.buildGenericKeyRingUri(
+                                    Long.toString(signerMasterKeyId))
+                    );
+                    startActivity(viewIntent);
+                } catch (ProviderHelper.NotFoundException e) {
+                    // TODO notify user of this, maybe offer download?
+                    Log.e(Constants.TAG, "key not found!", e);
+                }
+            }
+        });
     }
 
     @Override
     public void onLoaderReset(Loader<Cursor> loader) {
     }
 
-
-    @Override
-    public boolean onCreateOptionsMenu(Menu menu) {
-        super.onCreateOptionsMenu(menu);
-        getMenuInflater().inflate(R.menu.view_cert, menu);
-        return true;
-    }
-
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
@@ -221,25 +239,6 @@ public class ViewCertActivity extends ActionBarActivity
                 NavUtils.navigateUpTo(this, viewIntent);
                 return true;
             }
-            case R.id.menu_view_cert_view_signer:
-                // can't do this before the data is initialized
-                Intent viewIntent = new Intent(this, ViewKeyActivity.class);
-
-                try {
-                    ProviderHelper providerHelper = new ProviderHelper(this);
-                    long signerMasterKeyId = providerHelper.getMasterKeyId(
-                            KeyRings.buildUnifiedKeyRingsFindBySubkeyUri(Long.toString(mSignerKeyId))
-                    );
-                    viewIntent.setData(KeyRings.buildGenericKeyRingUri(
-                            Long.toString(signerMasterKeyId))
-                    );
-                    startActivity(viewIntent);
-                } catch (ProviderHelper.NotFoundException e) {
-                    // TODO notify user of this, maybe offer download?
-                    Log.e(Constants.TAG, "key not found!", e);
-                }
-
-                return true;
         }
         return super.onOptionsItemSelected(item);
     }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyActivity.java

@@ -21,6 +21,7 @@ package org.sufficientlysecure.keychain.ui;
 import android.annotation.TargetApi;
 import android.app.Activity;
 import android.content.Intent;
+import android.database.Cursor;
 import android.net.Uri;
 import android.nfc.NdefMessage;
 import android.nfc.NdefRecord;
@@ -31,41 +32,54 @@ import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Message;
+import android.support.v4.app.LoaderManager;
+import android.support.v4.content.CursorLoader;
+import android.support.v4.content.Loader;
 import android.support.v4.view.ViewPager;
 import android.support.v7.app.ActionBar;
 import android.support.v7.app.ActionBarActivity;
 import android.view.Menu;
 import android.view.MenuItem;
+import android.view.View;
 import android.view.Window;
 
 import com.devspark.appmsg.AppMsg;
 
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.compatibility.ClipboardReflection;
 import org.sufficientlysecure.keychain.helper.ExportHelper;
 import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
 import org.sufficientlysecure.keychain.provider.KeychainContract;
 import org.sufficientlysecure.keychain.provider.ProviderHelper;
-import org.sufficientlysecure.keychain.ui.adapter.TabsAdapter;
-import org.sufficientlysecure.keychain.ui.dialog.ShareNfcDialogFragment;
-import org.sufficientlysecure.keychain.ui.dialog.ShareQrCodeDialogFragment;
+import org.sufficientlysecure.keychain.ui.adapter.PagerTabStripAdapter;
 import org.sufficientlysecure.keychain.util.Log;
+import org.sufficientlysecure.keychain.util.SlidingTabLayout;
 
 import java.io.IOException;
+import java.util.Date;
 import java.util.HashMap;
 
-public class ViewKeyActivity extends ActionBarActivity {
+public class ViewKeyActivity extends ActionBarActivity implements
+        LoaderManager.LoaderCallbacks<Cursor> {
 
     ExportHelper mExportHelper;
     ProviderHelper mProviderHelper;
 
     protected Uri mDataUri;
 
-    public static final String EXTRA_SELECTED_TAB = "selectedTab";
+    public static final String EXTRA_SELECTED_TAB = "selected_tab";
+    public static final int TAB_MAIN = 0;
+    public static final int TAB_SHARE = 1;
+    public static final int TAB_KEYS = 2;
+    public static final int TAB_CERTS = 3;
 
-    ViewPager mViewPager;
-    TabsAdapter mTabsAdapter;
+    // view
+    private ViewPager mViewPager;
+    private SlidingTabLayout mSlidingTabLayout;
+    private PagerTabStripAdapter mTabsAdapter;
+    private View mStatusDivider;
+    private View mStatusRevoked;
+    private View mStatusExpired;
 
     public static final int REQUEST_CODE_LOOKUP_KEY = 0x00007006;
 
@@ -76,6 +90,9 @@ public class ViewKeyActivity extends ActionBarActivity {
     private byte[] mNfcKeyringBytes;
     private static final int NFC_SENT = 1;
 
+    private static final int LOADER_ID_UNIFIED = 0;
+
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
@@ -89,33 +106,71 @@ public class ViewKeyActivity extends ActionBarActivity {
         actionBar.setDisplayHomeAsUpEnabled(true);
         actionBar.setIcon(android.R.color.transparent);
         actionBar.setHomeButtonEnabled(true);
-        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
 
         setContentView(R.layout.view_key_activity);
 
-        mViewPager = (ViewPager) findViewById(R.id.pager);
+        mStatusDivider = findViewById(R.id.status_divider);
+        mStatusRevoked = findViewById(R.id.view_key_revoked);
+        mStatusExpired = findViewById(R.id.view_key_expired);
 
-        mTabsAdapter = new TabsAdapter(this, mViewPager);
+        mViewPager = (ViewPager) findViewById(R.id.view_key_pager);
+        mSlidingTabLayout = (SlidingTabLayout) findViewById(R.id.view_key_sliding_tab_layout);
 
-        int selectedTab = 0;
+        mTabsAdapter = new PagerTabStripAdapter(this);
+        mViewPager.setAdapter(mTabsAdapter);
+
+        int switchToTab = TAB_MAIN;
         Intent intent = getIntent();
         if (intent.getExtras() != null && intent.getExtras().containsKey(EXTRA_SELECTED_TAB)) {
-            selectedTab = intent.getExtras().getInt(EXTRA_SELECTED_TAB);
+            switchToTab = intent.getExtras().getInt(EXTRA_SELECTED_TAB);
         }
 
-        mDataUri = getIntent().getData();
+        Uri dataUri = getIntent().getData();
+        if (dataUri == null) {
+            Log.e(Constants.TAG, "Data missing. Should be Uri of key!");
+            finish();
+            return;
+        }
 
-        initNfc(mDataUri);
+        loadData(dataUri);
+
+        initNfc(dataUri);
 
         Bundle mainBundle = new Bundle();
-        mainBundle.putParcelable(ViewKeyMainFragment.ARG_DATA_URI, mDataUri);
-        mTabsAdapter.addTab(actionBar.newTab().setText(getString(R.string.key_view_tab_main)),
-                ViewKeyMainFragment.class, mainBundle, (selectedTab == 0));
+        mainBundle.putParcelable(ViewKeyMainFragment.ARG_DATA_URI, dataUri);
+        mTabsAdapter.addTab(ViewKeyMainFragment.class,
+                mainBundle, getString(R.string.key_view_tab_main));
+
+        Bundle shareBundle = new Bundle();
+        shareBundle.putParcelable(ViewKeyMainFragment.ARG_DATA_URI, dataUri);
+        mTabsAdapter.addTab(ViewKeyShareFragment.class,
+                mainBundle, getString(R.string.key_view_tab_share));
+
+        Bundle keyDetailsBundle = new Bundle();
+        keyDetailsBundle.putParcelable(ViewKeyKeysFragment.ARG_DATA_URI, dataUri);
+        mTabsAdapter.addTab(ViewKeyKeysFragment.class,
+                keyDetailsBundle, getString(R.string.key_view_tab_keys));
 
         Bundle certBundle = new Bundle();
-        certBundle.putParcelable(ViewKeyCertsFragment.ARG_DATA_URI, mDataUri);
-        mTabsAdapter.addTab(actionBar.newTab().setText(getString(R.string.key_view_tab_certs)),
-                ViewKeyCertsFragment.class, certBundle, (selectedTab == 1));
+        certBundle.putParcelable(ViewKeyCertsFragment.ARG_DATA_URI, dataUri);
+        mTabsAdapter.addTab(ViewKeyCertsFragment.class,
+                certBundle, getString(R.string.key_view_tab_certs));
+
+        // NOTE: must be after adding the tabs!
+        mSlidingTabLayout.setViewPager(mViewPager);
+
+        // switch to tab selected by extra
+        mViewPager.setCurrentItem(switchToTab);
+    }
+
+    private void loadData(Uri dataUri) {
+        mDataUri = dataUri;
+
+        Log.i(Constants.TAG, "mDataUri: " + mDataUri.toString());
+
+        // Prepare the loaders. Either re-connect with an existing ones,
+        // or start new ones.
+        getSupportLoaderManager().initLoader(LOADER_ID_UNIFIED, null, this);
     }
 
     @Override
@@ -143,24 +198,6 @@ public class ViewKeyActivity extends ActionBarActivity {
                 case R.id.menu_key_view_export_file:
                     exportToFile(mDataUri, mExportHelper, mProviderHelper);
                     return true;
-                case R.id.menu_key_view_share_default_fingerprint:
-                    shareKey(mDataUri, true, mProviderHelper);
-                    return true;
-                case R.id.menu_key_view_share_default:
-                    shareKey(mDataUri, false, mProviderHelper);
-                    return true;
-                case R.id.menu_key_view_share_qr_code_fingerprint:
-                    shareKeyQrCode(mDataUri, true);
-                    return true;
-                case R.id.menu_key_view_share_qr_code:
-                    shareKeyQrCode(mDataUri, false);
-                    return true;
-                case R.id.menu_key_view_share_nfc:
-                    shareNfc();
-                    return true;
-                case R.id.menu_key_view_share_clipboard:
-                    copyToClipboard(mDataUri, mProviderHelper);
-                    return true;
                 case R.id.menu_key_view_delete: {
                     deleteKey(mDataUri, mExportHelper);
                     return true;
@@ -209,84 +246,6 @@ public class ViewKeyActivity extends ActionBarActivity {
         startActivityForResult(queryIntent, REQUEST_CODE_LOOKUP_KEY);
     }
 
-    private void shareKey(Uri dataUri, boolean fingerprintOnly, ProviderHelper providerHelper)
-            throws ProviderHelper.NotFoundException {
-        String content = null;
-        if (fingerprintOnly) {
-            byte[] data = (byte[]) providerHelper.getGenericData(
-                    KeychainContract.KeyRings.buildUnifiedKeyRingUri(dataUri),
-                    KeychainContract.Keys.FINGERPRINT, ProviderHelper.FIELD_TYPE_BLOB);
-            if (data != null) {
-                String fingerprint = PgpKeyHelper.convertFingerprintToHex(data);
-                content = Constants.FINGERPRINT_SCHEME + ":" + fingerprint;
-            } else {
-                AppMsg.makeText(this, "Bad key selected!",
-                        AppMsg.STYLE_ALERT).show();
-                return;
-            }
-        } else {
-            // get public keyring as ascii armored string
-            try {
-                Uri uri = KeychainContract.KeyRingData.buildPublicKeyRingUri(dataUri);
-                content = providerHelper.getKeyRingAsArmoredString(uri);
-
-                // Android will fail with android.os.TransactionTooLargeException if key is too big
-                // see http://www.lonestarprod.com/?p=34
-                if (content.length() >= 86389) {
-                    AppMsg.makeText(this, R.string.key_too_big_for_sharing,
-                            AppMsg.STYLE_ALERT).show();
-                    return;
-                }
-            } catch (IOException e) {
-                Log.e(Constants.TAG, "error processing key!", e);
-                AppMsg.makeText(this, R.string.error_invalid_data, AppMsg.STYLE_ALERT).show();
-            } catch (ProviderHelper.NotFoundException e) {
-                Log.e(Constants.TAG, "key not found!", e);
-                AppMsg.makeText(this, R.string.error_key_not_found, AppMsg.STYLE_ALERT).show();
-            }
-        }
-
-        if (content != null) {
-            // let user choose application
-            Intent sendIntent = new Intent(Intent.ACTION_SEND);
-            sendIntent.putExtra(Intent.EXTRA_TEXT, content);
-            sendIntent.setType("text/plain");
-            startActivity(Intent.createChooser(sendIntent,
-                    getResources().getText(R.string.action_share_key_with)));
-        } else {
-            Log.e(Constants.TAG, "content is null!");
-        }
-    }
-
-    private void shareKeyQrCode(Uri dataUri, boolean fingerprintOnly) {
-        ShareQrCodeDialogFragment dialog = ShareQrCodeDialogFragment.newInstance(dataUri,
-                fingerprintOnly);
-        dialog.show(getSupportFragmentManager(), "shareQrCodeDialog");
-    }
-
-    private void copyToClipboard(Uri dataUri, ProviderHelper providerHelper) {
-        // get public keyring as ascii armored string
-        try {
-            Uri uri = KeychainContract.KeyRingData.buildPublicKeyRingUri(dataUri);
-            String keyringArmored = providerHelper.getKeyRingAsArmoredString(uri);
-
-            ClipboardReflection.copyToClipboard(this, keyringArmored);
-            AppMsg.makeText(this, R.string.key_copied_to_clipboard, AppMsg.STYLE_INFO)
-                    .show();
-        } catch (IOException e) {
-            Log.e(Constants.TAG, "error processing key!", e);
-            AppMsg.makeText(this, R.string.error_key_processing, AppMsg.STYLE_ALERT).show();
-        } catch (ProviderHelper.NotFoundException e) {
-            Log.e(Constants.TAG, "key not found!", e);
-            AppMsg.makeText(this, R.string.error_key_not_found, AppMsg.STYLE_ALERT).show();
-        }
-    }
-
-    private void shareNfc() {
-        ShareNfcDialogFragment dialog = ShareNfcDialogFragment.newInstance();
-        dialog.show(getSupportFragmentManager(), "shareNfcDialog");
-    }
-
     private void deleteKey(Uri dataUri, ExportHelper exportHelper) {
         // Message is received after key is deleted
         Handler returnHandler = new Handler() {
@@ -409,4 +368,85 @@ public class ViewKeyActivity extends ActionBarActivity {
         }
     };
 
+    static final String[] UNIFIED_PROJECTION = new String[]{
+            KeychainContract.KeyRings._ID,
+            KeychainContract.KeyRings.MASTER_KEY_ID,
+            KeychainContract.KeyRings.USER_ID,
+            KeychainContract.KeyRings.IS_REVOKED,
+            KeychainContract.KeyRings.EXPIRY,
+
+    };
+    static final int INDEX_UNIFIED_MASTER_KEY_ID = 1;
+    static final int INDEX_UNIFIED_USER_ID = 2;
+    static final int INDEX_UNIFIED_IS_REVOKED = 3;
+    static final int INDEX_UNIFIED_EXPIRY = 4;
+
+    @Override
+    public Loader<Cursor> onCreateLoader(int id, Bundle args) {
+        switch (id) {
+            case LOADER_ID_UNIFIED: {
+                Uri baseUri = KeychainContract.KeyRings.buildUnifiedKeyRingUri(mDataUri);
+                return new CursorLoader(this, baseUri, UNIFIED_PROJECTION, null, null, null);
+            }
+
+            default:
+                return null;
+        }
+    }
+
+    @Override
+    public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
+        /* TODO better error handling? May cause problems when a key is deleted,
+         * because the notification triggers faster than the activity closes.
+         */
+        // Avoid NullPointerExceptions...
+        if (data.getCount() == 0) {
+            return;
+        }
+        // Swap the new cursor in. (The framework will take care of closing the
+        // old cursor once we return.)
+        switch (loader.getId()) {
+            case LOADER_ID_UNIFIED: {
+                if (data.moveToFirst()) {
+                    // get name, email, and comment from USER_ID
+                    String[] mainUserId = PgpKeyHelper.splitUserId(data.getString(INDEX_UNIFIED_USER_ID));
+                    if (mainUserId[0] != null) {
+                        setTitle(mainUserId[0]);
+                    } else {
+                        setTitle(R.string.user_id_no_name);
+                    }
+
+                    // get key id from MASTER_KEY_ID
+                    long masterKeyId = data.getLong(INDEX_UNIFIED_MASTER_KEY_ID);
+                    String keyIdStr = PgpKeyHelper.convertKeyIdToHex(masterKeyId);
+                    getSupportActionBar().setSubtitle(keyIdStr);
+
+                    // If this key is revoked, it cannot be used for anything!
+                    if (data.getInt(INDEX_UNIFIED_IS_REVOKED) != 0) {
+                        mStatusDivider.setVisibility(View.VISIBLE);
+                        mStatusRevoked.setVisibility(View.VISIBLE);
+                        mStatusExpired.setVisibility(View.GONE);
+                    } else {
+                        mStatusRevoked.setVisibility(View.GONE);
+
+                        Date expiryDate = new Date(data.getLong(INDEX_UNIFIED_EXPIRY) * 1000);
+                        if (!data.isNull(INDEX_UNIFIED_EXPIRY) && expiryDate.before(new Date())) {
+                            mStatusDivider.setVisibility(View.VISIBLE);
+                            mStatusExpired.setVisibility(View.VISIBLE);
+                        } else {
+                            mStatusDivider.setVisibility(View.GONE);
+                            mStatusExpired.setVisibility(View.GONE);
+                        }
+                    }
+
+                    break;
+                }
+            }
+        }
+    }
+
+    @Override
+    public void onLoaderReset(Loader<Cursor> loader) {
+
+    }
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyCertsFragment.java

@@ -23,7 +23,6 @@ import android.database.Cursor;
 import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
-import android.support.v4.app.Fragment;
 import android.support.v4.app.LoaderManager;
 import android.support.v4.content.CursorLoader;
 import android.support.v4.content.Loader;
@@ -46,7 +45,7 @@ import se.emilsjolander.stickylistheaders.StickyListHeadersAdapter;
 import se.emilsjolander.stickylistheaders.StickyListHeadersListView;
 
 
-public class ViewKeyCertsFragment extends Fragment
+public class ViewKeyCertsFragment extends LoaderFragment
         implements LoaderManager.LoaderCallbacks<Cursor>, AdapterView.OnItemClickListener {
 
     // These are the rows that we will retrieve.
@@ -75,19 +74,23 @@ public class ViewKeyCertsFragment extends Fragment
 
     private Uri mDataUri;
 
-    @Override
-    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
-        View view = inflater.inflate(R.layout.view_key_certs_fragment, container, false);
+    // starting with 4 for this fragment
+    private static final int LOADER_ID = 4;
 
-        return view;
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup superContainer, Bundle savedInstanceState) {
+        View root = super.onCreateView(inflater, superContainer, savedInstanceState);
+        View view = inflater.inflate(R.layout.view_key_certs_fragment, getContainer());
+
+        mStickyList = (StickyListHeadersListView) view.findViewById(R.id.list);
+
+        return root;
     }
 
     @Override
     public void onActivityCreated(Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
 
-        mStickyList = (StickyListHeadersListView) getActivity().findViewById(R.id.list);
-
         if (!getArguments().containsKey(ARG_DATA_URI)) {
             Log.e(Constants.TAG, "Data missing. Should be Uri of key!");
             getActivity().finish();
@@ -112,11 +115,12 @@ public class ViewKeyCertsFragment extends Fragment
         mAdapter = new CertListAdapter(getActivity(), null);
         mStickyList.setAdapter(mAdapter);
 
-        getLoaderManager().initLoader(0, null, this);
+        getLoaderManager().initLoader(LOADER_ID, null, this);
     }
 
     @Override
     public Loader<Cursor> onCreateLoader(int id, Bundle args) {
+        setContentShown(false);
         // Now create and return a CursorLoader that will take care of
         // creating a Cursor for the data being displayed.
         return new CursorLoader(getActivity(), mDataUri, PROJECTION, null, null, SORT_ORDER);
@@ -129,6 +133,8 @@ public class ViewKeyCertsFragment extends Fragment
         mAdapter.swapCursor(data);
 
         mStickyList.setAdapter(mAdapter);
+
+        setContentShown(true);
     }
 
     /**
@@ -208,11 +214,18 @@ public class ViewKeyCertsFragment extends Fragment
 
             // set name and stuff, common to both key types
             TextView wSignerKeyId = (TextView) view.findViewById(R.id.signerKeyId);
-            TextView wSignerUserId = (TextView) view.findViewById(R.id.signerUserId);
+            TextView wSignerName = (TextView) view.findViewById(R.id.signerName);
             TextView wSignStatus = (TextView) view.findViewById(R.id.signStatus);
 
             String signerKeyId = PgpKeyHelper.convertKeyIdToHex(cursor.getLong(mIndexSignerKeyId));
-            String signerUserId = cursor.getString(mIndexSignerUserId);
+            String[] userId = PgpKeyHelper.splitUserId(cursor.getString(mIndexSignerUserId));
+            if (userId[0] != null) {
+                wSignerName.setText(userId[0]);
+            } else {
+                wSignerName.setText(R.string.user_id_no_name);
+            }
+            wSignerKeyId.setText(signerKeyId);
+
             switch (cursor.getInt(mIndexType)) {
                 case PGPSignature.DEFAULT_CERTIFICATION: // 0x10
                     wSignStatus.setText(R.string.cert_default);
@@ -231,8 +244,6 @@ public class ViewKeyCertsFragment extends Fragment
                     break;
             }
 
-            wSignerUserId.setText(signerUserId);
-            wSignerKeyId.setText(signerKeyId);
 
             view.setTag(R.id.tag_mki, cursor.getLong(mIndexMasterKeyId));
             view.setTag(R.id.tag_rank, cursor.getLong(mIndexRank));

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyKeysFragment.java

@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.sufficientlysecure.keychain.ui;
+
+import android.database.Cursor;
+import android.graphics.Color;
+import android.net.Uri;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.LoaderManager;
+import android.support.v4.content.CursorLoader;
+import android.support.v4.content.Loader;
+import android.text.format.DateFormat;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.LinearLayout;
+import android.widget.ListView;
+import android.widget.TextView;
+
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
+import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
+import org.sufficientlysecure.keychain.provider.KeychainContract.Keys;
+import org.sufficientlysecure.keychain.ui.adapter.ViewKeyKeysAdapter;
+import org.sufficientlysecure.keychain.util.Log;
+
+import java.util.Date;
+
+
+public class ViewKeyKeysFragment extends LoaderFragment implements
+        LoaderManager.LoaderCallbacks<Cursor> {
+
+    public static final String ARG_DATA_URI = "uri";
+
+    private ListView mKeys;
+
+    private ViewKeyKeysAdapter mKeysAdapter;
+
+    private Uri mDataUri;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup superContainer, Bundle savedInstanceState) {
+        View root = super.onCreateView(inflater, superContainer, savedInstanceState);
+        View view = inflater.inflate(R.layout.view_key_keys_fragment, getContainer());
+
+        mKeys = (ListView) view.findViewById(R.id.keys);
+
+        return root;
+    }
+
+    @Override
+    public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+
+        Uri dataUri = getArguments().getParcelable(ARG_DATA_URI);
+        if (dataUri == null) {
+            Log.e(Constants.TAG, "Data missing. Should be Uri of key!");
+            getActivity().finish();
+            return;
+        }
+
+        loadData(dataUri);
+    }
+
+    private void loadData(Uri dataUri) {
+        mDataUri = dataUri;
+
+        Log.i(Constants.TAG, "mDataUri: " + mDataUri.toString());
+
+        mKeysAdapter = new ViewKeyKeysAdapter(getActivity(), null, 0);
+        mKeys.setAdapter(mKeysAdapter);
+
+        // Prepare the loaders. Either re-connect with an existing ones,
+        // or start new ones.
+        getLoaderManager().initLoader(0, null, this);
+    }
+
+    static final String[] KEYS_PROJECTION = new String[] {
+            Keys._ID,
+            Keys.KEY_ID, Keys.RANK, Keys.ALGORITHM, Keys.KEY_SIZE, Keys.HAS_SECRET,
+            Keys.CAN_CERTIFY, Keys.CAN_ENCRYPT, Keys.CAN_SIGN, Keys.IS_REVOKED,
+            Keys.CREATION, Keys.EXPIRY, Keys.FINGERPRINT
+    };
+
+    public Loader<Cursor> onCreateLoader(int id, Bundle args) {
+        setContentShown(false);
+        Uri baseUri = Keys.buildKeysUri(mDataUri);
+        return new CursorLoader(getActivity(), baseUri, KEYS_PROJECTION, null, null, null);
+    }
+
+    public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
+        // Avoid NullPointerExceptions, if we get an empty result set.
+        if(data.getCount() == 0) {
+            return;
+        }
+        // Swap the new cursor in. (The framework will take care of closing the
+        // old cursor once we return.)
+        mKeysAdapter.swapCursor(data);
+
+        setContentShown(true);
+    }
+
+    /**
+     * This is called when the last Cursor provided to onLoadFinished() above is about to be closed.
+     * We need to make sure we are no longer using it.
+     */
+    public void onLoaderReset(Loader<Cursor> loader) {
+        mKeysAdapter.swapCursor(null);
+    }
+
+}

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyMainFragment.java

@@ -19,90 +19,64 @@ package org.sufficientlysecure.keychain.ui;
 
 import android.content.Intent;
 import android.database.Cursor;
-import android.graphics.Color;
 import android.net.Uri;
 import android.os.Bundle;
-import android.support.v4.app.Fragment;
 import android.support.v4.app.LoaderManager;
 import android.support.v4.content.CursorLoader;
 import android.support.v4.content.Loader;
-import android.text.format.DateFormat;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.LinearLayout;
 import android.widget.ListView;
-import android.widget.TextView;
 
-import com.beardedhen.androidbootstrap.BootstrapButton;
+import com.devspark.appmsg.AppMsg;
 
 import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
-import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRingData;
+import org.sufficientlysecure.keychain.R;import org.sufficientlysecure.keychain.provider.KeychainContract;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
-import org.sufficientlysecure.keychain.provider.KeychainContract.Keys;
 import org.sufficientlysecure.keychain.provider.KeychainContract.UserIds;
 import org.sufficientlysecure.keychain.provider.ProviderHelper;
-import org.sufficientlysecure.keychain.ui.adapter.ViewKeyKeysAdapter;
 import org.sufficientlysecure.keychain.ui.adapter.ViewKeyUserIdsAdapter;
 import org.sufficientlysecure.keychain.util.Log;
 
 import java.util.Date;
 
-
-public class ViewKeyMainFragment extends Fragment implements
+public class ViewKeyMainFragment extends LoaderFragment implements
         LoaderManager.LoaderCallbacks<Cursor> {
 
     public static final String ARG_DATA_URI = "uri";
 
-    private LinearLayout mContainer;
-    private TextView mName;
-    private TextView mEmail;
-    private TextView mComment;
-    private TextView mAlgorithm;
-    private TextView mKeyId;
-    private TextView mExpiry;
-    private TextView mCreation;
-    private TextView mFingerprint;
-    private TextView mSecretKey;
-    private BootstrapButton mActionEdit;
-    private BootstrapButton mActionEncrypt;
-    private BootstrapButton mActionCertify;
+    private View mActionEdit;
+    private View mActionEditDivider;
+    private View mActionEncrypt;
+    private View mActionCertify;
+    private View mActionCertifyDivider;
 
     private ListView mUserIds;
-    private ListView mKeys;
 
     private static final int LOADER_ID_UNIFIED = 0;
     private static final int LOADER_ID_USER_IDS = 1;
-    private static final int LOADER_ID_KEYS = 2;
+
+    // conservative attitude
+    private boolean mHasEncrypt = true;
 
     private ViewKeyUserIdsAdapter mUserIdsAdapter;
-    private ViewKeyKeysAdapter mKeysAdapter;
 
     private Uri mDataUri;
 
     @Override
-    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
-        View view = inflater.inflate(R.layout.view_key_main_fragment, container, false);
+    public View onCreateView(LayoutInflater inflater, ViewGroup superContainer, Bundle savedInstanceState) {
+        View root = super.onCreateView(inflater, superContainer, savedInstanceState);
+        View view = inflater.inflate(R.layout.view_key_main_fragment, getContainer());
 
-        mContainer = (LinearLayout) view.findViewById(R.id.container);
-        mName = (TextView) view.findViewById(R.id.name);
-        mEmail = (TextView) view.findViewById(R.id.email);
-        mComment = (TextView) view.findViewById(R.id.comment);
-        mKeyId = (TextView) view.findViewById(R.id.key_id);
-        mAlgorithm = (TextView) view.findViewById(R.id.algorithm);
-        mCreation = (TextView) view.findViewById(R.id.creation);
-        mExpiry = (TextView) view.findViewById(R.id.expiry);
-        mFingerprint = (TextView) view.findViewById(R.id.fingerprint);
-        mSecretKey = (TextView) view.findViewById(R.id.secret_key);
-        mUserIds = (ListView) view.findViewById(R.id.user_ids);
-        mKeys = (ListView) view.findViewById(R.id.keys);
-        mActionEdit = (BootstrapButton) view.findViewById(R.id.action_edit);
-        mActionEncrypt = (BootstrapButton) view.findViewById(R.id.action_encrypt);
-        mActionCertify = (BootstrapButton) view.findViewById(R.id.action_certify);
+        mUserIds = (ListView) view.findViewById(R.id.view_key_user_ids);
+        mActionEdit = view.findViewById(R.id.view_key_action_edit);
+        mActionEditDivider = view.findViewById(R.id.view_key_action_edit_divider);
+        mActionEncrypt = view.findViewById(R.id.view_key_action_encrypt);
+        mActionCertify = view.findViewById(R.id.view_key_action_certify);
+        mActionCertifyDivider = view.findViewById(R.id.view_key_action_certify_divider);
 
-        return view;
+        return root;
     }
 
     @Override
@@ -120,14 +94,6 @@ public class ViewKeyMainFragment extends Fragment implements
     }
 
     private void loadData(Uri dataUri) {
-        if (dataUri.equals(mDataUri)) {
-            Log.d(Constants.TAG, "Same URI, no need to load the data again!");
-            return;
-        }
-
-        getActivity().setProgressBarIndeterminateVisibility(true);
-        mContainer.setVisibility(View.GONE);
-
         mDataUri = dataUri;
 
         Log.i(Constants.TAG, "mDataUri: " + mDataUri.toString());
@@ -135,52 +101,42 @@ public class ViewKeyMainFragment extends Fragment implements
         mActionEncrypt.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                encryptToContact(mDataUri);
+                encrypt(mDataUri);
             }
         });
         mActionCertify.setOnClickListener(new View.OnClickListener() {
             public void onClick(View view) {
-                certifyKey(mDataUri);
+                certify(mDataUri);
+            }
+        });
+        mActionEdit.setOnClickListener(new View.OnClickListener() {
+            public void onClick(View view) {
+                editKey(mDataUri);
             }
         });
 
         mUserIdsAdapter = new ViewKeyUserIdsAdapter(getActivity(), null, 0);
         mUserIds.setAdapter(mUserIdsAdapter);
 
-        mKeysAdapter = new ViewKeyKeysAdapter(getActivity(), null, 0);
-        mKeys.setAdapter(mKeysAdapter);
-
         // Prepare the loaders. Either re-connect with an existing ones,
         // or start new ones.
-        getActivity().getSupportLoaderManager().initLoader(LOADER_ID_UNIFIED, null, this);
-        getActivity().getSupportLoaderManager().initLoader(LOADER_ID_USER_IDS, null, this);
-        getActivity().getSupportLoaderManager().initLoader(LOADER_ID_KEYS, null, this);
+        getLoaderManager().initLoader(LOADER_ID_UNIFIED, null, this);
+        getLoaderManager().initLoader(LOADER_ID_USER_IDS, null, this);
     }
 
-    static final String[] UNIFIED_PROJECTION = new String[] {
-        KeyRings._ID, KeyRings.MASTER_KEY_ID, KeyRings.HAS_ANY_SECRET,
-            KeyRings.USER_ID, KeyRings.FINGERPRINT,
-            KeyRings.ALGORITHM, KeyRings.KEY_SIZE, KeyRings.CREATION, KeyRings.EXPIRY,
-
+    static final String[] UNIFIED_PROJECTION = new String[]{
+            KeyRings._ID, KeyRings.MASTER_KEY_ID,
+            KeyRings.HAS_ANY_SECRET, KeyRings.IS_REVOKED, KeyRings.EXPIRY, KeyRings.HAS_ENCRYPT
     };
-    static final int INDEX_UNIFIED_MKI = 1;
+    static final int INDEX_UNIFIED_MASTER_KEY_ID = 1;
     static final int INDEX_UNIFIED_HAS_ANY_SECRET = 2;
-    static final int INDEX_UNIFIED_UID = 3;
-    static final int INDEX_UNIFIED_FINGERPRINT = 4;
-    static final int INDEX_UNIFIED_ALGORITHM = 5;
-    static final int INDEX_UNIFIED_KEY_SIZE = 6;
-    static final int INDEX_UNIFIED_CREATION = 7;
-    static final int INDEX_UNIFIED_EXPIRY = 8;
-
-    static final String[] KEYS_PROJECTION = new String[] {
-            Keys._ID,
-            Keys.KEY_ID, Keys.RANK, Keys.ALGORITHM, Keys.KEY_SIZE, Keys.HAS_SECRET,
-            Keys.CAN_CERTIFY, Keys.CAN_ENCRYPT, Keys.CAN_SIGN, Keys.IS_REVOKED,
-            Keys.CREATION, Keys.EXPIRY, Keys.FINGERPRINT
-    };
-    static final int KEYS_INDEX_CAN_ENCRYPT = 7;
+    static final int INDEX_UNIFIED_IS_REVOKED = 3;
+    static final int INDEX_UNIFIED_EXPIRY = 4;
+    static final int INDEX_UNIFIED_HAS_ENCRYPT = 5;
 
     public Loader<Cursor> onCreateLoader(int id, Bundle args) {
+        setContentShown(false);
+
         switch (id) {
             case LOADER_ID_UNIFIED: {
                 Uri baseUri = KeyRings.buildUnifiedKeyRingUri(mDataUri);
@@ -188,11 +144,8 @@ public class ViewKeyMainFragment extends Fragment implements
             }
             case LOADER_ID_USER_IDS: {
                 Uri baseUri = UserIds.buildUserIdsUri(mDataUri);
-                return new CursorLoader(getActivity(), baseUri, ViewKeyUserIdsAdapter.USER_IDS_PROJECTION, null, null, null);
-            }
-            case LOADER_ID_KEYS: {
-                Uri baseUri = Keys.buildKeysUri(mDataUri);
-                return new CursorLoader(getActivity(), baseUri, KEYS_PROJECTION, null, null, null);
+                return new CursorLoader(getActivity(), baseUri,
+                        ViewKeyUserIdsAdapter.USER_IDS_PROJECTION, null, null, null);
             }
 
             default:
@@ -205,7 +158,7 @@ public class ViewKeyMainFragment extends Fragment implements
          * because the notification triggers faster than the activity closes.
          */
         // Avoid NullPointerExceptions...
-        if(data.getCount() == 0) {
+        if (data.getCount() == 0) {
             return;
         }
         // Swap the new cursor in. (The framework will take care of closing the
@@ -213,80 +166,43 @@ public class ViewKeyMainFragment extends Fragment implements
         switch (loader.getId()) {
             case LOADER_ID_UNIFIED: {
                 if (data.moveToFirst()) {
-                    // get name, email, and comment from USER_ID
-                    String[] mainUserId = PgpKeyHelper.splitUserId(data.getString(INDEX_UNIFIED_UID));
-                    if (mainUserId[0] != null) {
-                        getActivity().setTitle(mainUserId[0]);
-                        mName.setText(mainUserId[0]);
-                    } else {
-                        getActivity().setTitle(R.string.user_id_no_name);
-                        mName.setText(R.string.user_id_no_name);
-                    }
-                    mEmail.setText(mainUserId[1]);
-                    mComment.setText(mainUserId[2]);
-
                     if (data.getInt(INDEX_UNIFIED_HAS_ANY_SECRET) != 0) {
-                        mSecretKey.setTextColor(getResources().getColor(R.color.emphasis));
-                        mSecretKey.setText(R.string.secret_key_yes);
+                        // certify button
+                        mActionCertify.setVisibility(View.GONE);
+                        mActionCertifyDivider.setVisibility(View.GONE);
 
                         // edit button
                         mActionEdit.setVisibility(View.VISIBLE);
-                        mActionEdit.setOnClickListener(new View.OnClickListener() {
-                            public void onClick(View view) {
-                                Intent editIntent = new Intent(getActivity(), EditKeyActivity.class);
-                                editIntent.setData(
-                                        KeyRingData.buildSecretKeyRingUri(mDataUri));
-                                editIntent.setAction(EditKeyActivity.ACTION_EDIT_KEY);
-                                startActivityForResult(editIntent, 0);
-                            }
-                        });
+                        mActionEditDivider.setVisibility(View.VISIBLE);
                     } else {
-                        mSecretKey.setTextColor(Color.BLACK);
-                        mSecretKey.setText(getResources().getString(R.string.secret_key_no));
-
                         // certify button
                         mActionCertify.setVisibility(View.VISIBLE);
+                        mActionCertifyDivider.setVisibility(View.VISIBLE);
+
                         // edit button
                         mActionEdit.setVisibility(View.GONE);
+                        mActionEditDivider.setVisibility(View.GONE);
                     }
 
-                    // get key id from MASTER_KEY_ID
-                    long masterKeyId = data.getLong(INDEX_UNIFIED_MKI);
-                    String keyIdStr = PgpKeyHelper.convertKeyIdToHex(masterKeyId);
-                    mKeyId.setText(keyIdStr);
-
-                    // get creation date from CREATION
-                    if (data.isNull(INDEX_UNIFIED_CREATION)) {
-                        mCreation.setText(R.string.none);
+                    // If this key is revoked, it cannot be used for anything!
+                    if (data.getInt(INDEX_UNIFIED_IS_REVOKED) != 0) {
+                        mActionEdit.setEnabled(false);
+                        mActionCertify.setEnabled(false);
+                        mActionEncrypt.setEnabled(false);
                     } else {
-                        Date creationDate = new Date(data.getLong(INDEX_UNIFIED_CREATION) * 1000);
+                        mActionEdit.setEnabled(true);
 
-                        mCreation.setText(
-                                DateFormat.getDateFormat(getActivity().getApplicationContext()).format(
-                                        creationDate));
-                    }
-
-                    // get expiry date from EXPIRY
-                    if (data.isNull(INDEX_UNIFIED_EXPIRY)) {
-                        mExpiry.setText(R.string.none);
-                    } else {
                         Date expiryDate = new Date(data.getLong(INDEX_UNIFIED_EXPIRY) * 1000);
-
-                        mExpiry.setText(
-                                DateFormat.getDateFormat(getActivity().getApplicationContext()).format(
-                                        expiryDate));
+                        if (!data.isNull(INDEX_UNIFIED_EXPIRY) && expiryDate.before(new Date())) {
+                            mActionCertify.setEnabled(false);
+                            mActionEncrypt.setEnabled(false);
+                        } else {
+                            mActionCertify.setEnabled(true);
+                            mActionEncrypt.setEnabled(true);
+                        }
                     }
 
-                    String algorithmStr = PgpKeyHelper.getAlgorithmInfo(
-                            getActivity(),
-                            data.getInt(INDEX_UNIFIED_ALGORITHM),
-                            data.getInt(INDEX_UNIFIED_KEY_SIZE)
-                    );
-                    mAlgorithm.setText(algorithmStr);
-
-                    byte[] fingerprintBlob = data.getBlob(INDEX_UNIFIED_FINGERPRINT);
-                    String fingerprint = PgpKeyHelper.convertFingerprintToHex(fingerprintBlob);
-                    mFingerprint.setText(PgpKeyHelper.colorizeFingerprint(fingerprint));
+                    mHasEncrypt = data.getInt(INDEX_UNIFIED_HAS_ENCRYPT) != 0;
 
                     break;
                 }
@@ -296,26 +212,8 @@ public class ViewKeyMainFragment extends Fragment implements
                 mUserIdsAdapter.swapCursor(data);
                 break;
 
-            case LOADER_ID_KEYS:
-                // hide encrypt button if no encryption key is available
-                // TODO: do with subquery!
-                boolean canEncrypt = false;
-                data.moveToFirst();
-                do {
-                    if (data.getInt(KEYS_INDEX_CAN_ENCRYPT) == 1) {
-                        canEncrypt = true;
-                        break;
-                    }
-                } while (data.moveToNext());
-                if (!canEncrypt) {
-                    mActionEncrypt.setVisibility(View.GONE);
-                }
-
-                mKeysAdapter.swapCursor(data);
-                break;
         }
-        getActivity().setProgressBarIndeterminateVisibility(false);
-        mContainer.setVisibility(View.VISIBLE);
+        setContentShown(true);
     }
 
     /**
@@ -327,16 +225,18 @@ public class ViewKeyMainFragment extends Fragment implements
             case LOADER_ID_USER_IDS:
                 mUserIdsAdapter.swapCursor(null);
                 break;
-            case LOADER_ID_KEYS:
-                mKeysAdapter.swapCursor(null);
-                break;
         }
     }
 
-    private void encryptToContact(Uri dataUri) {
+    private void encrypt(Uri dataUri) {
+        // If there is no encryption key, don't bother.
+        if (!mHasEncrypt) {
+            AppMsg.makeText(getActivity(), R.string.error_no_encrypt_subkey, AppMsg.STYLE_ALERT).show();
+            return;
+        }
         try {
             long keyId = new ProviderHelper(getActivity()).extractOrGetMasterKeyId(dataUri);
-            long[] encryptionKeyIds = new long[]{ keyId };
+            long[] encryptionKeyIds = new long[]{keyId};
             Intent intent = new Intent(getActivity(), EncryptActivity.class);
             intent.setAction(EncryptActivity.ACTION_ENCRYPT);
             intent.putExtra(EncryptActivity.EXTRA_ENCRYPTION_KEY_IDS, encryptionKeyIds);
@@ -347,10 +247,17 @@ public class ViewKeyMainFragment extends Fragment implements
         }
     }
 
-    private void certifyKey(Uri dataUri) {
+    private void certify(Uri dataUri) {
         Intent signIntent = new Intent(getActivity(), CertifyKeyActivity.class);
         signIntent.setData(dataUri);
         startActivity(signIntent);
     }
 
+    private void editKey(Uri dataUri) {
+        Intent editIntent = new Intent(getActivity(), EditKeyActivity.class);
+        editIntent.setData(KeychainContract.KeyRingData.buildSecretKeyRingUri(dataUri));
+        editIntent.setAction(EditKeyActivity.ACTION_EDIT_KEY);
+        startActivityForResult(editIntent, 0);
+    }
+
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyShareFragment.java

@@ -0,0 +1,308 @@
+/*
+ * Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.sufficientlysecure.keychain.ui;
+
+import android.annotation.TargetApi;
+import android.content.Intent;
+import android.database.Cursor;
+import android.net.Uri;
+import android.os.Build;
+import android.os.Bundle;
+import android.provider.Settings;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.LoaderManager;
+import android.support.v4.content.CursorLoader;
+import android.support.v4.content.Loader;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+
+import com.devspark.appmsg.AppMsg;
+
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.compatibility.ClipboardReflection;
+import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
+import org.sufficientlysecure.keychain.provider.KeychainContract;
+import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
+import org.sufficientlysecure.keychain.provider.KeychainContract.Keys;
+import org.sufficientlysecure.keychain.provider.ProviderHelper;
+import org.sufficientlysecure.keychain.ui.dialog.ShareNfcDialogFragment;
+import org.sufficientlysecure.keychain.ui.dialog.ShareQrCodeDialogFragment;
+import org.sufficientlysecure.keychain.util.Log;
+import org.sufficientlysecure.keychain.util.QrCodeUtils;
+
+import java.io.IOException;
+
+
+public class ViewKeyShareFragment extends LoaderFragment implements
+        LoaderManager.LoaderCallbacks<Cursor> {
+
+    public static final String ARG_DATA_URI = "uri";
+
+    private TextView mFingerprint;
+    private ImageView mFingerprintQrCode;
+    private View mFingerprintShareButton;
+    private View mFingerprintClipboardButton;
+    private View mKeyShareButton;
+    private View mKeyClipboardButton;
+    private View mNfcHelpButton;
+    private View mNfcPrefsButton;
+
+    ProviderHelper mProviderHelper;
+
+    private static final int QR_CODE_SIZE = 1000;
+
+    private static final int LOADER_ID_UNIFIED = 0;
+
+    private Uri mDataUri;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup superContainer, Bundle savedInstanceState) {
+        View root = super.onCreateView(inflater, superContainer, savedInstanceState);
+        View view = inflater.inflate(R.layout.view_key_share_fragment, getContainer());
+
+        mProviderHelper = new ProviderHelper(ViewKeyShareFragment.this.getActivity());
+
+        mFingerprint = (TextView) view.findViewById(R.id.view_key_fingerprint);
+        mFingerprintQrCode = (ImageView) view.findViewById(R.id.view_key_fingerprint_qr_code_image);
+        mFingerprintShareButton = view.findViewById(R.id.view_key_action_fingerprint_share);
+        mFingerprintClipboardButton = view.findViewById(R.id.view_key_action_fingerprint_clipboard);
+        mKeyShareButton = view.findViewById(R.id.view_key_action_key_share);
+        mKeyClipboardButton = view.findViewById(R.id.view_key_action_key_clipboard);
+        mNfcHelpButton = view.findViewById(R.id.view_key_action_nfc_help);
+        mNfcPrefsButton = view.findViewById(R.id.view_key_action_nfc_prefs);
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
+            mNfcPrefsButton.setVisibility(View.VISIBLE);
+        } else {
+            mNfcPrefsButton.setVisibility(View.GONE);
+        }
+
+        mFingerprintQrCode.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                showQrCodeDialog();
+            }
+        });
+
+        mFingerprintShareButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                share(mDataUri, mProviderHelper, true, false);
+            }
+        });
+        mFingerprintClipboardButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                share(mDataUri, mProviderHelper, true, true);
+            }
+        });
+        mKeyShareButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                share(mDataUri, mProviderHelper, false, false);
+            }
+        });
+        mKeyClipboardButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                share(mDataUri, mProviderHelper, false, true);
+            }
+        });
+        mNfcHelpButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                showNfcHelpDialog();
+            }
+        });
+        mNfcPrefsButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                showNfcPrefs();
+            }
+        });
+
+        return root;
+    }
+
+    private void share(Uri dataUri, ProviderHelper providerHelper, boolean fingerprintOnly,
+                       boolean toClipboard) {
+        try {
+            String content;
+            if (fingerprintOnly) {
+                byte[] data = (byte[]) providerHelper.getGenericData(
+                        KeyRings.buildUnifiedKeyRingUri(dataUri),
+                        Keys.FINGERPRINT, ProviderHelper.FIELD_TYPE_BLOB);
+                String fingerprint = PgpKeyHelper.convertFingerprintToHex(data);
+                content = Constants.FINGERPRINT_SCHEME + ":" + fingerprint;
+            } else {
+                // get public keyring as ascii armored string
+                Uri uri = KeychainContract.KeyRingData.buildPublicKeyRingUri(dataUri);
+                content = providerHelper.getKeyRingAsArmoredString(uri);
+            }
+
+            if (toClipboard) {
+                ClipboardReflection.copyToClipboard(getActivity(), content);
+                String message;
+                if (fingerprintOnly) {
+                    message = getResources().getString(R.string.fingerprint_copied_to_clipboard);
+                } else {
+                    message = getResources().getString(R.string.key_copied_to_clipboard);
+                }
+                AppMsg.makeText(getActivity(), message, AppMsg.STYLE_INFO).show();
+            } else {
+                // Android will fail with android.os.TransactionTooLargeException if key is too big
+                // see http://www.lonestarprod.com/?p=34
+                if (content.length() >= 86389) {
+                    AppMsg.makeText(getActivity(), R.string.key_too_big_for_sharing,
+                            AppMsg.STYLE_ALERT).show();
+                    return;
+                }
+
+                // let user choose application
+                Intent sendIntent = new Intent(Intent.ACTION_SEND);
+                sendIntent.putExtra(Intent.EXTRA_TEXT, content);
+                sendIntent.setType("text/plain");
+                String title;
+                if (fingerprintOnly) {
+                    title = getResources().getString(R.string.title_share_fingerprint_with);
+                } else {
+                    title = getResources().getString(R.string.title_share_key);
+                }
+                startActivity(Intent.createChooser(sendIntent, title));
+            }
+        } catch (IOException e) {
+            Log.e(Constants.TAG, "error processing key!", e);
+            AppMsg.makeText(getActivity(), R.string.error_key_processing, AppMsg.STYLE_ALERT).show();
+        } catch (ProviderHelper.NotFoundException e) {
+            Log.e(Constants.TAG, "key not found!", e);
+            AppMsg.makeText(getActivity(), R.string.error_key_not_found, AppMsg.STYLE_ALERT).show();
+        }
+    }
+
+    private void showQrCodeDialog() {
+        ShareQrCodeDialogFragment dialog = ShareQrCodeDialogFragment.newInstance(mDataUri);
+        dialog.show(ViewKeyShareFragment.this.getActivity().getSupportFragmentManager(), "shareQrCodeDialog");
+    }
+
+    private void showNfcHelpDialog() {
+        ShareNfcDialogFragment dialog = ShareNfcDialogFragment.newInstance();
+        dialog.show(getActivity().getSupportFragmentManager(), "shareNfcDialog");
+    }
+
+    @TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
+    private void showNfcPrefs() {
+        Intent intentSettings = new Intent(
+                Settings.ACTION_NFCSHARING_SETTINGS);
+        startActivity(intentSettings);
+    }
+
+    @Override
+    public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+
+        Uri dataUri = getArguments().getParcelable(ARG_DATA_URI);
+        if (dataUri == null) {
+            Log.e(Constants.TAG, "Data missing. Should be Uri of key!");
+            getActivity().finish();
+            return;
+        }
+
+        loadData(dataUri);
+    }
+
+    private void loadData(Uri dataUri) {
+        mDataUri = dataUri;
+
+        Log.i(Constants.TAG, "mDataUri: " + mDataUri.toString());
+
+        // Prepare the loaders. Either re-connect with an existing ones,
+        // or start new ones.
+        getLoaderManager().initLoader(LOADER_ID_UNIFIED, null, this);
+    }
+
+    static final String[] UNIFIED_PROJECTION = new String[]{
+            KeyRings._ID, KeyRings.MASTER_KEY_ID, KeyRings.HAS_ANY_SECRET,
+            KeyRings.USER_ID, KeyRings.FINGERPRINT,
+            KeyRings.ALGORITHM, KeyRings.KEY_SIZE, KeyRings.CREATION, KeyRings.EXPIRY,
+
+    };
+    static final int INDEX_UNIFIED_MASTER_KEY_ID = 1;
+    static final int INDEX_UNIFIED_HAS_ANY_SECRET = 2;
+    static final int INDEX_UNIFIED_USER_ID = 3;
+    static final int INDEX_UNIFIED_FINGERPRINT = 4;
+    static final int INDEX_UNIFIED_ALGORITHM = 5;
+    static final int INDEX_UNIFIED_KEY_SIZE = 6;
+    static final int INDEX_UNIFIED_CREATION = 7;
+    static final int INDEX_UNIFIED_EXPIRY = 8;
+
+    public Loader<Cursor> onCreateLoader(int id, Bundle args) {
+        setContentShown(false);
+        switch (id) {
+            case LOADER_ID_UNIFIED: {
+                Uri baseUri = KeyRings.buildUnifiedKeyRingUri(mDataUri);
+                return new CursorLoader(getActivity(), baseUri, UNIFIED_PROJECTION, null, null, null);
+            }
+
+            default:
+                return null;
+        }
+    }
+
+    public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
+        /* TODO better error handling? May cause problems when a key is deleted,
+         * because the notification triggers faster than the activity closes.
+         */
+        // Avoid NullPointerExceptions...
+        if (data.getCount() == 0) {
+            return;
+        }
+        // Swap the new cursor in. (The framework will take care of closing the
+        // old cursor once we return.)
+        switch (loader.getId()) {
+            case LOADER_ID_UNIFIED: {
+                if (data.moveToFirst()) {
+
+                    byte[] fingerprintBlob = data.getBlob(INDEX_UNIFIED_FINGERPRINT);
+                    String fingerprint = PgpKeyHelper.convertFingerprintToHex(fingerprintBlob);
+                    mFingerprint.setText(PgpKeyHelper.colorizeFingerprint(fingerprint));
+
+                    String qrCodeContent = Constants.FINGERPRINT_SCHEME + ":" + fingerprint;
+                    mFingerprintQrCode.setImageBitmap(
+                            QrCodeUtils.getQRCodeBitmap(qrCodeContent, QR_CODE_SIZE)
+                    );
+
+                    break;
+                }
+            }
+
+        }
+        setContentShown(true);
+    }
+
+    /**
+     * This is called when the last Cursor provided to onLoadFinished() above is about to be closed.
+     * We need to make sure we are no longer using it.
+     */
+    public void onLoaderReset(Loader<Cursor> loader) {
+    }
+}

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysAdapter.java

@@ -28,10 +28,10 @@ import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.CheckBox;
 import android.widget.LinearLayout;
-import android.widget.LinearLayout.LayoutParams;
 import android.widget.TextView;
 
 import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.keyimport.ImportKeysListEntry;
 import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
 
 import java.util.ArrayList;
@@ -106,7 +106,7 @@ public class ImportKeysAdapter extends ArrayAdapter<ImportKeysListEntry> {
             holder.mainUserId = (TextView) convertView.findViewById(R.id.mainUserId);
             holder.mainUserIdRest = (TextView) convertView.findViewById(R.id.mainUserIdRest);
             holder.keyId = (TextView) convertView.findViewById(R.id.keyId);
-            holder.fingerprint = (TextView) convertView.findViewById(R.id.fingerprint);
+            holder.fingerprint = (TextView) convertView.findViewById(R.id.view_key_fingerprint);
             holder.algorithm = (TextView) convertView.findViewById(R.id.algorithm);
             holder.status = (TextView) convertView.findViewById(R.id.status);
             holder.userIdsList = (LinearLayout) convertView.findViewById(R.id.user_ids_list);

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysListKeybaseLoader.java

@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.sufficientlysecure.keychain.ui.adapter;
+
+import android.content.Context;
+import android.support.v4.content.AsyncTaskLoader;
+
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.keyimport.ImportKeysListEntry;
+import org.sufficientlysecure.keychain.keyimport.KeyServer;
+import org.sufficientlysecure.keychain.keyimport.KeybaseKeyServer;
+import org.sufficientlysecure.keychain.util.Log;
+
+import java.util.ArrayList;
+
+public class ImportKeysListKeybaseLoader
+        extends AsyncTaskLoader<AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>> {
+    Context mContext;
+
+    String mKeybaseQuery;
+
+    private ArrayList<ImportKeysListEntry> mEntryList = new ArrayList<ImportKeysListEntry>();
+    private AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>> mEntryListWrapper;
+
+    public ImportKeysListKeybaseLoader(Context context, String keybaseQuery) {
+        super(context);
+        mContext = context;
+        mKeybaseQuery = keybaseQuery;
+    }
+
+    @Override
+    public AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>> loadInBackground() {
+
+        mEntryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>(mEntryList, null);
+
+        if (mKeybaseQuery == null) {
+            Log.e(Constants.TAG, "mKeybaseQery is null!");
+            return mEntryListWrapper;
+        }
+
+        queryServer(mKeybaseQuery);
+
+        return mEntryListWrapper;
+    }
+
+    @Override
+    protected void onReset() {
+        super.onReset();
+
+        // Ensure the loader is stopped
+        onStopLoading();
+    }
+
+    @Override
+    protected void onStartLoading() {
+        forceLoad();
+    }
+
+    @Override
+    protected void onStopLoading() {
+        cancelLoad();
+    }
+
+    @Override
+    public void deliverResult(AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>> data) {
+        super.deliverResult(data);
+    }
+
+    /**
+     * Query keybase
+     */
+    private void queryServer(String query) {
+
+        KeybaseKeyServer server = new KeybaseKeyServer();
+        try {
+            ArrayList<ImportKeysListEntry> searchResult = server.search(query);
+
+            mEntryList.clear();
+
+            mEntryList.addAll(searchResult);
+            mEntryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>(mEntryList, null);
+        } catch (KeyServer.InsufficientQuery e) {
+            mEntryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>(mEntryList, e);
+        } catch (KeyServer.QueryException e) {
+            mEntryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>(mEntryList, e);
+        } catch (KeyServer.TooManyResponses e) {
+            mEntryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>(mEntryList, e);
+        }
+
+    }
+
+}

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysListLoader.java

@@ -24,6 +24,7 @@ import org.spongycastle.openpgp.PGPKeyRing;
 import org.spongycastle.openpgp.PGPObjectFactory;
 import org.spongycastle.openpgp.PGPUtil;
 import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.keyimport.ImportKeysListEntry;
 import org.sufficientlysecure.keychain.util.InputData;
 import org.sufficientlysecure.keychain.util.Log;
 import org.sufficientlysecure.keychain.util.PositionAwareInputStream;

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ImportKeysListServerLoader.java

@@ -21,8 +21,9 @@ import android.content.Context;
 import android.support.v4.content.AsyncTaskLoader;
 
 import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.util.HkpKeyServer;
-import org.sufficientlysecure.keychain.util.KeyServer;
+import org.sufficientlysecure.keychain.keyimport.HkpKeyServer;
+import org.sufficientlysecure.keychain.keyimport.ImportKeysListEntry;
+import org.sufficientlysecure.keychain.keyimport.KeyServer;
 import org.sufficientlysecure.keychain.util.Log;
 
 import java.util.ArrayList;
@@ -116,13 +117,10 @@ public class ImportKeysListServerLoader
             }
             mEntryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>(mEntryList, null);
         } catch (KeyServer.InsufficientQuery e) {
-            Log.e(Constants.TAG, "InsufficientQuery", e);
             mEntryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>(mEntryList, e);
         } catch (KeyServer.QueryException e) {
-            Log.e(Constants.TAG, "QueryException", e);
             mEntryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>(mEntryList, e);
         } catch (KeyServer.TooManyResponses e) {
-            Log.e(Constants.TAG, "TooManyResponses", e);
             mEntryListWrapper = new AsyncTaskResultWrapper<ArrayList<ImportKeysListEntry>>(mEntryList, e);
         }
     }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/PagerTabStripAdapter.java

@@ -17,7 +17,7 @@
 
 package org.sufficientlysecure.keychain.ui.adapter;
 
-import android.content.Context;
+import android.app.Activity;
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
 import android.support.v4.app.FragmentPagerAdapter;
@@ -26,8 +26,8 @@ import android.support.v7.app.ActionBarActivity;
 import java.util.ArrayList;
 
 public class PagerTabStripAdapter extends FragmentPagerAdapter {
-    private final Context mContext;
-    private final ArrayList<TabInfo> mTabs = new ArrayList<TabInfo>();
+    protected final Activity mActivity;
+    protected final ArrayList<TabInfo> mTabs = new ArrayList<TabInfo>();
 
     static final class TabInfo {
         public final Class<?> clss;
@@ -43,7 +43,7 @@ public class PagerTabStripAdapter extends FragmentPagerAdapter {
 
     public PagerTabStripAdapter(ActionBarActivity activity) {
         super(activity.getSupportFragmentManager());
-        mContext = activity;
+        mActivity = activity;
     }
 
     public void addTab(Class<?> clss, Bundle args, String title) {
@@ -60,7 +60,7 @@ public class PagerTabStripAdapter extends FragmentPagerAdapter {
     @Override
     public Fragment getItem(int position) {
         TabInfo info = mTabs.get(position);
-        return Fragment.instantiate(mContext, info.clss.getName(), info.args);
+        return Fragment.instantiate(mActivity, info.clss.getName(), info.args);
     }
 
     @Override

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ViewKeyKeysAdapter.java

@@ -121,35 +121,17 @@ public class ViewKeyKeysAdapter extends CursorAdapter {
         keyId.setText(keyIdStr);
         // may be set with additional "stripped" later on
         if (hasAnySecret && cursor.getInt(mIndexHasSecret) == 0) {
-            keyDetails.setText("(" + algorithmStr + ", " +
-                    context.getString(R.string.key_stripped) + ")");
+            keyDetails.setText(algorithmStr + ", " +
+                    context.getString(R.string.key_stripped));
         } else {
-            keyDetails.setText("(" + algorithmStr + ")");
+            keyDetails.setText(algorithmStr);
         }
 
-        if (cursor.getInt(mIndexRank) == 0) {
-            masterKeyIcon.setVisibility(View.INVISIBLE);
-        } else {
-            masterKeyIcon.setVisibility(View.VISIBLE);
-        }
-
-        if (cursor.getInt(mIndexCanCertify) != 1) {
-            certifyIcon.setVisibility(View.GONE);
-        } else {
-            certifyIcon.setVisibility(View.VISIBLE);
-        }
-
-        if (cursor.getInt(mIndexCanEncrypt) != 1) {
-            encryptIcon.setVisibility(View.GONE);
-        } else {
-            encryptIcon.setVisibility(View.VISIBLE);
-        }
-
-        if (cursor.getInt(mIndexCanSign) != 1) {
-            signIcon.setVisibility(View.GONE);
-        } else {
-            signIcon.setVisibility(View.VISIBLE);
-        }
+        // Set icons according to properties
+        masterKeyIcon.setVisibility(cursor.getInt(mIndexRank) == 0 ? View.VISIBLE : View.INVISIBLE);
+        certifyIcon.setVisibility(cursor.getInt(mIndexCanCertify) != 0 ? View.VISIBLE : View.GONE);
+        encryptIcon.setVisibility(cursor.getInt(mIndexCanEncrypt) != 0 ? View.VISIBLE : View.GONE);
+        signIcon.setVisibility(cursor.getInt(mIndexCanSign) != 0 ? View.VISIBLE : View.GONE);
 
         boolean valid = true;
         if (cursor.getInt(mIndexRevokedKey) > 0) {
@@ -168,13 +150,13 @@ public class ViewKeyKeysAdapter extends CursorAdapter {
             Date expiryDate = new Date(cursor.getLong(mIndexExpiry) * 1000);
 
             valid = valid && expiryDate.after(new Date());
-            keyExpiry.setText("(" +
+            keyExpiry.setText(
                     context.getString(R.string.label_expiry) + ": " +
-                    DateFormat.getDateFormat(context).format(expiryDate) + ")");
-
-            keyExpiry.setVisibility(View.VISIBLE);
+                    DateFormat.getDateFormat(context).format(expiryDate));
         } else {
-            keyExpiry.setVisibility(View.GONE);
+            keyExpiry.setText(
+                    context.getString(R.string.label_expiry) + ": " +
+                    context.getString(R.string.none));
         }
 
         // if key is expired or revoked, strike through text

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/ViewKeyUserIdsAdapter.java

@@ -27,6 +27,7 @@ import android.widget.AdapterView;
 import android.widget.CheckBox;
 import android.widget.CompoundButton;
 import android.widget.ImageView;
+import android.widget.LinearLayout;
 import android.widget.TextView;
 
 import org.sufficientlysecure.keychain.R;
@@ -106,46 +107,58 @@ public class ViewKeyUserIdsAdapter extends CursorAdapter implements AdapterView.
 
     @Override
     public void bindView(View view, Context context, Cursor cursor) {
-        TextView vRank = (TextView) view.findViewById(R.id.rank);
-        TextView vUserId = (TextView) view.findViewById(R.id.userId);
+        TextView vName = (TextView) view.findViewById(R.id.userId);
         TextView vAddress = (TextView) view.findViewById(R.id.address);
+        TextView vComment = (TextView) view.findViewById(R.id.comment);
         ImageView vVerified = (ImageView) view.findViewById(R.id.certified);
 
-        if (cursor.getInt(mIsPrimary) > 0) {
-            vRank.setText("+");
-        } else {
-            vRank.setText(Integer.toString(cursor.getInt(mIndexRank)));
-        }
-
         String[] userId = PgpKeyHelper.splitUserId(cursor.getString(mIndexUserId));
         if (userId[0] != null) {
-            vUserId.setText(userId[0]);
+            vName.setText(userId[0]);
         } else {
-            vUserId.setText(R.string.user_id_no_name);
+            vName.setText(R.string.user_id_no_name);
         }
-        vAddress.setText(userId[1]);
+        if (userId[1] != null) {
+            vAddress.setText(userId[1]);
+            vAddress.setVisibility(View.VISIBLE);
+        } else {
+            vAddress.setVisibility(View.GONE);
+        }
+        if (userId[2] != null) {
+            vComment.setText(userId[2]);
+            vComment.setVisibility(View.VISIBLE);
+        } else {
+            vComment.setVisibility(View.GONE);
+        }
+
+        // show small star icon for primary user ids
+        boolean isPrimary = cursor.getInt(mIsPrimary) != 0;
 
         if (cursor.getInt(mIsRevoked) > 0) {
-            vRank.setText(" ");
+
+            // set revocation icon (can this even be primary?)
             vVerified.setImageResource(R.drawable.key_certify_revoke);
 
             // disable and strike through text for revoked user ids
-            vUserId.setEnabled(false);
+            vName.setEnabled(false);
             vAddress.setEnabled(false);
-            vUserId.setText(OtherHelper.strikeOutText(vUserId.getText()));
+            vName.setText(OtherHelper.strikeOutText(vName.getText()));
             vAddress.setText(OtherHelper.strikeOutText(vAddress.getText()));
         } else {
-            vUserId.setEnabled(true);
+            vName.setEnabled(true);
             vAddress.setEnabled(true);
 
             int verified = cursor.getInt(mVerifiedId);
-            // TODO introduce own resources for this :)
             switch (verified) {
                 case Certs.VERIFIED_SECRET:
-                    vVerified.setImageResource(R.drawable.key_certify_ok_depth0);
+                    vVerified.setImageResource(isPrimary
+                            ? R.drawable.key_certify_primary_ok_depth0
+                            : R.drawable.key_certify_ok_depth0);
                     break;
                 case Certs.VERIFIED_SELF:
-                    vVerified.setImageResource(R.drawable.key_certify_ok_self);
+                    vVerified.setImageResource(isPrimary
+                            ? R.drawable.key_certify_primary_ok_self
+                            : R.drawable.key_certify_ok_self);
                     break;
                 default:
                     vVerified.setImageResource(R.drawable.key_certify_error);

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/BadImportKeyDialogFragment.java

@@ -17,7 +17,6 @@
 
 package org.sufficientlysecure.keychain.ui.dialog;
 
-import android.app.AlertDialog;
 import android.app.Dialog;
 import android.content.DialogInterface;
 import android.os.Bundle;
@@ -50,7 +49,7 @@ public class BadImportKeyDialogFragment extends DialogFragment {
         final FragmentActivity activity = getActivity();
         final int badImport = getArguments().getInt(ARG_BAD_IMPORT);
 
-        AlertDialog.Builder alert = new AlertDialog.Builder(activity);
+        CustomAlertDialogBuilder alert = new CustomAlertDialogBuilder(activity);
         alert.setIcon(R.drawable.ic_dialog_alert_holo_light);
         alert.setTitle(R.string.warning);
         alert.setMessage(activity.getResources()
@@ -63,6 +62,6 @@ public class BadImportKeyDialogFragment extends DialogFragment {
                 });
         alert.setCancelable(true);
 
-        return alert.create();
+        return alert.show();
     }
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/CreateKeyDialogFragment.java

@@ -83,7 +83,7 @@ public class CreateKeyDialogFragment extends DialogFragment {
         final int childCount = getArguments().getInt(ARG_EDITOR_CHILD_COUNT);
         mInflater = context.getLayoutInflater();
 
-        AlertDialog.Builder dialog = new AlertDialog.Builder(context);
+        CustomAlertDialogBuilder dialog = new CustomAlertDialogBuilder(context);
 
         View view = mInflater.inflate(R.layout.create_key_dialog, null);
         dialog.setView(view);
@@ -146,7 +146,7 @@ public class CreateKeyDialogFragment extends DialogFragment {
                     }
                 });
 
-        final AlertDialog alertDialog = dialog.create();
+        final AlertDialog alertDialog = dialog.show();
 
         mCustomKeyEditText.addTextChangedListener(new TextWatcher() {
             @Override

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/CustomAlertDialogBuilder.java

@@ -0,0 +1,40 @@
+package org.sufficientlysecure.keychain.ui.dialog;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.view.View;
+import android.widget.TextView;
+
+import org.sufficientlysecure.keychain.R;
+
+/** This class extends AlertDiaog.Builder, styling the header using emphasis color.
+ * Note that this class is a huge hack, because dialog boxes aren't easily stylable.
+ * Also, the dialog NEEDS to be called with show() directly, not create(), otherwise
+ * the order of internal operations will lead to a crash!
+ */
+public class CustomAlertDialogBuilder extends AlertDialog.Builder {
+
+    public CustomAlertDialogBuilder(Activity activity) {
+        super(activity);
+    }
+
+    @Override
+    public AlertDialog show() {
+        AlertDialog dialog = super.show();
+
+        int dividerId = dialog.getContext().getResources().getIdentifier("android:id/titleDivider", null, null);
+        View divider = dialog.findViewById(dividerId);
+        if (divider != null) {
+            divider.setBackgroundColor(dialog.getContext().getResources().getColor(R.color.emphasis));
+        }
+
+        int textViewId = dialog.getContext().getResources().getIdentifier("android:id/alertTitle", null, null);
+        TextView tv = (TextView) dialog.findViewById(textViewId);
+        if (tv != null) {
+            tv.setTextColor(dialog.getContext().getResources().getColor(R.color.emphasis));
+        }
+
+        return dialog;
+    }
+
+}

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/DeleteFileDialogFragment.java

@@ -17,7 +17,6 @@
 
 package org.sufficientlysecure.keychain.ui.dialog;
 
-import android.app.AlertDialog;
 import android.app.Dialog;
 import android.app.ProgressDialog;
 import android.content.DialogInterface;
@@ -59,7 +58,7 @@ public class DeleteFileDialogFragment extends DialogFragment {
 
         final String deleteFile = getArguments().getString(ARG_DELETE_FILE);
 
-        AlertDialog.Builder alert = new AlertDialog.Builder(activity);
+        CustomAlertDialogBuilder alert = new CustomAlertDialogBuilder(activity);
 
 
         alert.setIcon(R.drawable.ic_dialog_alert_holo_light);
@@ -120,6 +119,6 @@ public class DeleteFileDialogFragment extends DialogFragment {
         });
         alert.setCancelable(true);
 
-        return alert.create();
+        return alert.show();
     }
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/DeleteKeyDialogFragment.java

@@ -17,7 +17,6 @@
 
 package org.sufficientlysecure.keychain.ui.dialog;
 
-import android.app.AlertDialog;
 import android.app.Dialog;
 import android.content.DialogInterface;
 import android.os.Bundle;
@@ -73,7 +72,7 @@ public class DeleteKeyDialogFragment extends DialogFragment {
 
         final long[] masterKeyIds = getArguments().getLongArray(ARG_DELETE_MASTER_KEY_IDS);
 
-        AlertDialog.Builder builder = new AlertDialog.Builder(activity);
+        CustomAlertDialogBuilder builder = new CustomAlertDialogBuilder(activity);
 
         // Setup custom View to display in AlertDialog
         LayoutInflater inflater = activity.getLayoutInflater();
@@ -144,7 +143,7 @@ public class DeleteKeyDialogFragment extends DialogFragment {
             }
         });
 
-        return builder.create();
+        return builder.show();
     }
 
     /**

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/FileDialogFragment.java

@@ -97,7 +97,7 @@ public class FileDialogFragment extends DialogFragment {
 
         LayoutInflater inflater = (LayoutInflater) activity
                 .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
-        AlertDialog.Builder alert = new AlertDialog.Builder(activity);
+        CustomAlertDialogBuilder alert = new CustomAlertDialogBuilder(activity);
         alert.setTitle(title);
 
         View view = inflater.inflate(R.layout.file_dialog, null);
@@ -157,7 +157,7 @@ public class FileDialogFragment extends DialogFragment {
                 dismiss();
             }
         });
-        return alert.create();
+        return alert.show();
     }
 
     /**

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/PassphraseDialogFragment.java

@@ -134,7 +134,7 @@ public class PassphraseDialogFragment extends DialogFragment implements OnEditor
         final long secretKeyId = getArguments().getLong(ARG_SECRET_KEY_ID);
         mMessenger = getArguments().getParcelable(ARG_MESSENGER);
 
-        AlertDialog.Builder alert = new AlertDialog.Builder(activity);
+        CustomAlertDialogBuilder alert = new CustomAlertDialogBuilder(activity);
 
         alert.setTitle(R.string.title_authentication);
 
@@ -243,7 +243,7 @@ public class PassphraseDialogFragment extends DialogFragment implements OnEditor
         });
 
         mCanKB = true;
-        return alert.create();
+        return alert.show();
     }
 
     @Override

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/SetPassphraseDialogFragment.java

@@ -81,7 +81,7 @@ public class SetPassphraseDialogFragment extends DialogFragment implements OnEdi
         int title = getArguments().getInt(ARG_TITLE);
         mMessenger = getArguments().getParcelable(ARG_MESSENGER);
 
-        AlertDialog.Builder alert = new AlertDialog.Builder(activity);
+        CustomAlertDialogBuilder alert = new CustomAlertDialogBuilder(activity);
 
         alert.setTitle(title);
         alert.setMessage(R.string.enter_passphrase_twice);
@@ -135,7 +135,7 @@ public class SetPassphraseDialogFragment extends DialogFragment implements OnEdi
             }
         });
 
-        return alert.create();
+        return alert.show();
     }
 
     @Override

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/ShareNfcDialogFragment.java

@@ -18,7 +18,6 @@
 package org.sufficientlysecure.keychain.ui.dialog;
 
 import android.annotation.TargetApi;
-import android.app.AlertDialog;
 import android.app.Dialog;
 import android.content.DialogInterface;
 import android.content.Intent;
@@ -51,7 +50,7 @@ public class ShareNfcDialogFragment extends DialogFragment {
     public Dialog onCreateDialog(Bundle savedInstanceState) {
         final FragmentActivity activity = getActivity();
 
-        AlertDialog.Builder alert = new AlertDialog.Builder(activity);
+        CustomAlertDialogBuilder alert = new CustomAlertDialogBuilder(activity);
 
         alert.setTitle(R.string.share_nfc_dialog);
         alert.setCancelable(true);
@@ -78,7 +77,7 @@ public class ShareNfcDialogFragment extends DialogFragment {
                         + getString(R.string.error_nfc_needed));
             } else {
                 // nfc works...
-                textView.setHtmlFromRawResource(getActivity(), R.raw.nfc_beam_share);
+                textView.setHtmlFromRawResource(getActivity(), R.raw.nfc_beam_share, true);
 
                 alert.setNegativeButton(R.string.menu_beam_preferences,
                         new DialogInterface.OnClickListener() {
@@ -93,6 +92,6 @@ public class ShareNfcDialogFragment extends DialogFragment {
             }
         }
         
-        return alert.create();
+        return alert.show();
     }
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/ShareQrCodeDialogFragment.java

@@ -18,14 +18,12 @@
 package org.sufficientlysecure.keychain.ui.dialog;
 
 import android.app.Activity;
-import android.app.AlertDialog;
 import android.app.Dialog;
 import android.net.Uri;
 import android.os.Bundle;
 import android.support.v4.app.DialogFragment;
 import android.view.LayoutInflater;
 import android.view.View;
-import android.widget.Button;
 import android.widget.ImageView;
 import android.widget.TextView;
 
@@ -34,37 +32,26 @@ import com.devspark.appmsg.AppMsg;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
-import org.sufficientlysecure.keychain.provider.KeychainContract;
 import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
 import org.sufficientlysecure.keychain.provider.ProviderHelper;
 import org.sufficientlysecure.keychain.util.Log;
 import org.sufficientlysecure.keychain.util.QrCodeUtils;
 
-import java.io.IOException;
-import java.util.ArrayList;
-
 public class ShareQrCodeDialogFragment extends DialogFragment {
     private static final String ARG_KEY_URI = "uri";
-    private static final String ARG_FINGERPRINT_ONLY = "fingerprint_only";
 
     private ImageView mImage;
     private TextView mText;
 
-    private boolean mFingerprintOnly;
-
-    private ArrayList<String> mContentList;
-    private int mCounter;
-
     private static final int QR_CODE_SIZE = 1000;
 
     /**
      * Creates new instance of this dialog fragment
      */
-    public static ShareQrCodeDialogFragment newInstance(Uri dataUri, boolean fingerprintOnly) {
+    public static ShareQrCodeDialogFragment newInstance(Uri dataUri) {
         ShareQrCodeDialogFragment frag = new ShareQrCodeDialogFragment();
         Bundle args = new Bundle();
         args.putParcelable(ARG_KEY_URI, dataUri);
-        args.putBoolean(ARG_FINGERPRINT_ONLY, fingerprintOnly);
 
         frag.setArguments(args);
 
@@ -79,9 +66,8 @@ public class ShareQrCodeDialogFragment extends DialogFragment {
         final Activity activity = getActivity();
 
         Uri dataUri = getArguments().getParcelable(ARG_KEY_URI);
-        mFingerprintOnly = getArguments().getBoolean(ARG_FINGERPRINT_ONLY);
 
-        AlertDialog.Builder alert = new AlertDialog.Builder(getActivity());
+        CustomAlertDialogBuilder alert = new CustomAlertDialogBuilder(getActivity());
         alert.setTitle(R.string.share_qr_code_dialog_title);
 
         LayoutInflater inflater = activity.getLayoutInflater();
@@ -94,131 +80,32 @@ public class ShareQrCodeDialogFragment extends DialogFragment {
         ProviderHelper providerHelper = new ProviderHelper(getActivity());
         String content;
         try {
-            if (mFingerprintOnly) {
-                alert.setPositiveButton(R.string.btn_okay, null);
+            alert.setPositiveButton(R.string.btn_okay, null);
 
-                byte[] blob = (byte[]) providerHelper.getGenericData(
-                        KeyRings.buildUnifiedKeyRingUri(dataUri),
-                        KeyRings.FINGERPRINT, ProviderHelper.FIELD_TYPE_BLOB);
-                if (blob == null) {
-                    Log.e(Constants.TAG, "key not found!");
-                    AppMsg.makeText(getActivity(), R.string.error_key_not_found, AppMsg.STYLE_ALERT).show();
-                    return null;
-                }
-
-                String fingerprint = PgpKeyHelper.convertFingerprintToHex(blob);
-                mText.setText(getString(R.string.share_qr_code_dialog_fingerprint_text) + " " + fingerprint);
-                content = Constants.FINGERPRINT_SCHEME + ":" + fingerprint;
-                setQrCode(content);
-            } else {
-                mText.setText(R.string.share_qr_code_dialog_start);
-
-                try {
-                    Uri uri = KeychainContract.KeyRingData.buildPublicKeyRingUri(dataUri);
-                    content = providerHelper.getKeyRingAsArmoredString(uri);
-                } catch (IOException e) {
-                    Log.e(Constants.TAG, "error processing key!", e);
-                    AppMsg.makeText(getActivity(), R.string.error_invalid_data, AppMsg.STYLE_ALERT).show();
-                    return null;
-                }
-
-                // OnClickListener are set in onResume to prevent automatic dismissing of Dialogs
-                // http://bit.ly/O5vfaR
-                alert.setPositiveButton(R.string.btn_next, null);
-                alert.setNegativeButton(android.R.string.cancel, null);
-
-                mContentList = splitString(content, 1000);
-
-                // start with first
-                mCounter = 0;
-                updatePartsQrCode();
+            byte[] blob = (byte[]) providerHelper.getGenericData(
+                    KeyRings.buildUnifiedKeyRingUri(dataUri),
+                    KeyRings.FINGERPRINT, ProviderHelper.FIELD_TYPE_BLOB);
+            if (blob == null) {
+                Log.e(Constants.TAG, "key not found!");
+                AppMsg.makeText(getActivity(), R.string.error_key_not_found, AppMsg.STYLE_ALERT).show();
+                return null;
             }
+
+            String fingerprint = PgpKeyHelper.convertFingerprintToHex(blob);
+            mText.setText(getString(R.string.share_qr_code_dialog_fingerprint_text) + " " + fingerprint);
+            content = Constants.FINGERPRINT_SCHEME + ":" + fingerprint;
+            setQrCode(content);
         } catch (ProviderHelper.NotFoundException e) {
             Log.e(Constants.TAG, "key not found!", e);
             AppMsg.makeText(getActivity(), R.string.error_key_not_found, AppMsg.STYLE_ALERT).show();
             return null;
         }
 
-        return alert.create();
-    }
-
-    @Override
-    public void onResume() {
-        super.onResume();
-
-        if (!mFingerprintOnly) {
-            AlertDialog alertDialog = (AlertDialog) getDialog();
-            final Button backButton = alertDialog.getButton(AlertDialog.BUTTON_NEGATIVE);
-            final Button nextButton = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE);
-
-            backButton.setOnClickListener(new View.OnClickListener() {
-                @Override
-                public void onClick(View v) {
-                    if (mCounter > 0) {
-                        mCounter--;
-                        updatePartsQrCode();
-                        updateDialog(backButton, nextButton);
-                    } else {
-                        dismiss();
-                    }
-                }
-            });
-            nextButton.setOnClickListener(new View.OnClickListener() {
-                @Override
-                public void onClick(View v) {
-
-                    if (mCounter < mContentList.size() - 1) {
-                        mCounter++;
-                        updatePartsQrCode();
-                        updateDialog(backButton, nextButton);
-                    } else {
-                        dismiss();
-                    }
-                }
-            });
-        }
-    }
-
-    private void updatePartsQrCode() {
-        // Content: <counter>,<size>,<content>
-        setQrCode(mCounter + "," + mContentList.size() + "," + mContentList.get(mCounter));
+        return alert.show();
     }
 
     private void setQrCode(String data) {
         mImage.setImageBitmap(QrCodeUtils.getQRCodeBitmap(data, QR_CODE_SIZE));
     }
 
-    private void updateDialog(Button backButton, Button nextButton) {
-        if (mCounter == 0) {
-            backButton.setText(android.R.string.cancel);
-        } else {
-            backButton.setText(R.string.btn_back);
-        }
-        if (mCounter == mContentList.size() - 1) {
-            nextButton.setText(android.R.string.ok);
-        } else {
-            nextButton.setText(R.string.btn_next);
-        }
-
-        mText.setText(getResources().getString(R.string.share_qr_code_dialog_progress,
-                mCounter + 1, mContentList.size()));
-    }
-
-    /**
-     * Split String by number of characters
-     *
-     * @param text
-     * @param size
-     * @return
-     */
-    private ArrayList<String> splitString(String text, int size) {
-        ArrayList<String> strings = new ArrayList<String>();
-        int index = 0;
-        while (index < text.length()) {
-            strings.add(text.substring(index, Math.min(index + size, text.length())));
-            index += size;
-        }
-
-        return strings;
-    }
 }

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/widget/UnderlineTextView.java

@@ -1,69 +0,0 @@
-/*
- * Copyright (C) 2013 Eric Frohnhoefer
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.sufficientlysecure.keychain.ui.widget;
-
-import android.content.Context;
-import android.content.res.Resources;
-import android.graphics.Canvas;
-import android.graphics.Paint;
-import android.util.AttributeSet;
-import android.util.TypedValue;
-import android.widget.TextView;
-
-/**
- * Copied from StickyListHeaders lib example
- *
- * @author Eric Frohnhoefer
- */
-public class UnderlineTextView extends TextView {
-    private final Paint mPaint = new Paint();
-    private int mUnderlineHeight = 0;
-
-    public UnderlineTextView(Context context) {
-        this(context, null);
-    }
-
-    public UnderlineTextView(Context context, AttributeSet attrs) {
-        this(context, attrs, 0);
-    }
-
-    public UnderlineTextView(Context context, AttributeSet attrs, int defStyle) {
-        super(context, attrs, defStyle);
-
-        init(context, attrs);
-    }
-
-    private void init(Context context, AttributeSet attrs) {
-        Resources r = getResources();
-        mUnderlineHeight = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 2,
-                r.getDisplayMetrics());
-    }
-
-    @Override
-    public void setPadding(int left, int top, int right, int bottom) {
-        super.setPadding(left, top, right, bottom + mUnderlineHeight);
-    }
-
-    @Override
-    protected void onDraw(Canvas canvas) {
-        super.onDraw(canvas);
-
-        // Draw the underline the same color as the text
-        mPaint.setColor(getTextColors().getDefaultColor());
-        canvas.drawRect(0, getHeight() - mUnderlineHeight, getWidth(), getHeight(), mPaint);
-    }
-}

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/InputData.java

@@ -19,6 +19,9 @@ package org.sufficientlysecure.keychain.util;
 
 import java.io.InputStream;
 
+/**
+ * Wrapper to include size besides an InputStream
+ */
 public class InputData {
     private PositionAwareInputStream mInputStream;
     private long mSize;

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/IntentIntegratorSupportV4.java

@@ -22,6 +22,8 @@ import android.support.v4.app.Fragment;
 import com.google.zxing.integration.android.IntentIntegrator;
 
 /**
+ * Copied from older Barcode Scanner Integration library
+ *
  * IntentIntegrator for the V4 Android compatibility package.
  *
  * @author Lachezar Dobrev

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/JWalk.java

@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2014 Tim Bray <tbray@textuality.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.sufficientlysecure.keychain.util;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+/**
+ * Minimal hierarchy selector
+ */
+public class JWalk {
+
+    public static int getInt(JSONObject json, String... path) throws JSONException {
+        json = walk(json, path);
+        return json.getInt(path[path.length - 1]);
+    }
+
+    public static long getLong(JSONObject json, String... path) throws JSONException {
+        json = walk(json, path);
+        return json.getLong(path[path.length - 1]);
+    }
+
+    public static String getString(JSONObject json, String... path) throws JSONException {
+        json = walk(json, path);
+        return json.getString(path[path.length - 1]);
+    }
+
+    public static JSONArray getArray(JSONObject json, String... path) throws JSONException {
+        json = walk(json, path);
+        return json.getJSONArray(path[path.length - 1]);
+    }
+
+    public static JSONObject optObject(JSONObject json, String... path) throws JSONException {
+        json = walk(json, path);
+        return json.optJSONObject(path[path.length - 1]);
+    }
+
+    private static JSONObject walk(JSONObject json, String... path) throws JSONException {
+        int len = path.length - 1;
+        int pathIndex = 0;
+        try {
+            while (pathIndex < len) {
+                json = json.getJSONObject(path[pathIndex]);
+                pathIndex++;
+            }
+        } catch (JSONException e) {
+            // try to give ’em a nice-looking error
+            StringBuilder sb = new StringBuilder();
+            for (int i = 0; i < len; i++) {
+                sb.append(path[i]).append('.');
+            }
+            sb.append(path[len]);
+            throw new JSONException("JWalk error at step " + pathIndex + " of " + sb);
+        }
+        return json;
+    }
+}

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/KeychainServiceListener.java

@@ -1,22 +0,0 @@
-/*
- * Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package org.sufficientlysecure.keychain.util;
-
-public interface KeychainServiceListener {
-    boolean hasServiceStopped();
-}

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/QrCodeUtils.java

@@ -32,6 +32,9 @@ import org.sufficientlysecure.keychain.Constants;
 
 import java.util.Hashtable;
 
+/**
+ * Copied from Bitcoin Wallet
+ */
 public class QrCodeUtils {
     public static final QRCodeWriter QR_CODE_WRITER = new QRCodeWriter();
 

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/SlidingTabLayout.java

@@ -0,0 +1,318 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.sufficientlysecure.keychain.util;
+
+import android.content.Context;
+import android.graphics.Typeface;
+import android.os.Build;
+import android.support.v4.view.PagerAdapter;
+import android.support.v4.view.ViewPager;
+import android.util.AttributeSet;
+import android.util.TypedValue;
+import android.view.Gravity;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.HorizontalScrollView;
+import android.widget.TextView;
+
+/**
+ * Copied from http://developer.android.com/samples/SlidingTabsColors/index.html
+ */
+
+/**
+ * To be used with ViewPager to provide a tab indicator component which give constant feedback as to
+ * the user's scroll progress.
+ * <p/>
+ * To use the component, simply add it to your view hierarchy. Then in your
+ * {@link android.app.Activity} or {@link android.support.v4.app.Fragment} call
+ * {@link #setViewPager(ViewPager)} providing it the ViewPager this layout is being used for.
+ * <p/>
+ * The colors can be customized in two ways. The first and simplest is to provide an array of colors
+ * via {@link #setSelectedIndicatorColors(int...)} and {@link #setDividerColors(int...)}. The
+ * alternative is via the {@link TabColorizer} interface which provides you complete control over
+ * which color is used for any individual position.
+ * <p/>
+ * The views used as tabs can be customized by calling {@link #setCustomTabView(int, int)},
+ * providing the layout ID of your custom layout.
+ */
+public class SlidingTabLayout extends HorizontalScrollView {
+
+    /**
+     * Allows complete control over the colors drawn in the tab layout. Set with
+     * {@link #setCustomTabColorizer(TabColorizer)}.
+     */
+    public interface TabColorizer {
+
+        /**
+         * @return return the color of the indicator used when {@code position} is selected.
+         */
+        int getIndicatorColor(int position);
+
+        /**
+         * @return return the color of the divider drawn to the right of {@code position}.
+         */
+        int getDividerColor(int position);
+
+    }
+
+    private static final int TITLE_OFFSET_DIPS = 24;
+    private static final int TAB_VIEW_PADDING_DIPS = 16;
+    private static final int TAB_VIEW_TEXT_SIZE_SP = 12;
+
+    private int mTitleOffset;
+
+    private int mTabViewLayoutId;
+    private int mTabViewTextViewId;
+
+    private ViewPager mViewPager;
+    private ViewPager.OnPageChangeListener mViewPagerPageChangeListener;
+
+    private final SlidingTabStrip mTabStrip;
+
+    public SlidingTabLayout(Context context) {
+        this(context, null);
+    }
+
+    public SlidingTabLayout(Context context, AttributeSet attrs) {
+        this(context, attrs, 0);
+    }
+
+    public SlidingTabLayout(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+
+        // Disable the Scroll Bar
+        setHorizontalScrollBarEnabled(false);
+        // Make sure that the Tab Strips fills this View
+        setFillViewport(true);
+
+        mTitleOffset = (int) (TITLE_OFFSET_DIPS * getResources().getDisplayMetrics().density);
+
+        mTabStrip = new SlidingTabStrip(context);
+        addView(mTabStrip, LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
+    }
+
+    /**
+     * Set the custom {@link TabColorizer} to be used.
+     * <p/>
+     * If you only require simple custmisation then you can use
+     * {@link #setSelectedIndicatorColors(int...)} and {@link #setDividerColors(int...)} to achieve
+     * similar effects.
+     */
+    public void setCustomTabColorizer(TabColorizer tabColorizer) {
+        mTabStrip.setCustomTabColorizer(tabColorizer);
+    }
+
+    /**
+     * Sets the colors to be used for indicating the selected tab. These colors are treated as a
+     * circular array. Providing one color will mean that all tabs are indicated with the same color.
+     */
+    public void setSelectedIndicatorColors(int... colors) {
+        mTabStrip.setSelectedIndicatorColors(colors);
+    }
+
+    /**
+     * Sets the colors to be used for tab dividers. These colors are treated as a circular array.
+     * Providing one color will mean that all tabs are indicated with the same color.
+     */
+    public void setDividerColors(int... colors) {
+        mTabStrip.setDividerColors(colors);
+    }
+
+    /**
+     * Set the {@link ViewPager.OnPageChangeListener}. When using {@link SlidingTabLayout} you are
+     * required to set any {@link ViewPager.OnPageChangeListener} through this method. This is so
+     * that the layout can update it's scroll position correctly.
+     *
+     * @see ViewPager#setOnPageChangeListener(ViewPager.OnPageChangeListener)
+     */
+    public void setOnPageChangeListener(ViewPager.OnPageChangeListener listener) {
+        mViewPagerPageChangeListener = listener;
+    }
+
+    /**
+     * Set the custom layout to be inflated for the tab views.
+     *
+     * @param layoutResId Layout id to be inflated
+     * @param textViewId  id of the {@link TextView} in the inflated view
+     */
+    public void setCustomTabView(int layoutResId, int textViewId) {
+        mTabViewLayoutId = layoutResId;
+        mTabViewTextViewId = textViewId;
+    }
+
+    /**
+     * Sets the associated view pager. Note that the assumption here is that the pager content
+     * (number of tabs and tab titles) does not change after this call has been made.
+     */
+    public void setViewPager(ViewPager viewPager) {
+        mTabStrip.removeAllViews();
+
+        mViewPager = viewPager;
+        if (viewPager != null) {
+            viewPager.setOnPageChangeListener(new InternalViewPagerListener());
+            populateTabStrip();
+        }
+    }
+
+    /**
+     * Create a default view to be used for tabs. This is called if a custom tab view is not set via
+     * {@link #setCustomTabView(int, int)}.
+     */
+    protected TextView createDefaultTabView(Context context) {
+        TextView textView = new TextView(context);
+        textView.setGravity(Gravity.CENTER);
+        textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, TAB_VIEW_TEXT_SIZE_SP);
+        textView.setTypeface(Typeface.DEFAULT_BOLD);
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
+            // If we're running on Honeycomb or newer, then we can use the Theme's
+            // selectableItemBackground to ensure that the View has a pressed state
+            TypedValue outValue = new TypedValue();
+            getContext().getTheme().resolveAttribute(android.R.attr.selectableItemBackground,
+                    outValue, true);
+            textView.setBackgroundResource(outValue.resourceId);
+        }
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
+            // If we're running on ICS or newer, enable all-caps to match the Action Bar tab style
+            textView.setAllCaps(true);
+        }
+
+        int padding = (int) (TAB_VIEW_PADDING_DIPS * getResources().getDisplayMetrics().density);
+        textView.setPadding(padding, padding, padding, padding);
+
+        return textView;
+    }
+
+    private void populateTabStrip() {
+        final PagerAdapter adapter = mViewPager.getAdapter();
+        final View.OnClickListener tabClickListener = new TabClickListener();
+
+        for (int i = 0; i < adapter.getCount(); i++) {
+            View tabView = null;
+            TextView tabTitleView = null;
+
+            if (mTabViewLayoutId != 0) {
+                // If there is a custom tab view layout id set, try and inflate it
+                tabView = LayoutInflater.from(getContext()).inflate(mTabViewLayoutId, mTabStrip,
+                        false);
+                tabTitleView = (TextView) tabView.findViewById(mTabViewTextViewId);
+            }
+
+            if (tabView == null) {
+                tabView = createDefaultTabView(getContext());
+            }
+
+            if (tabTitleView == null && TextView.class.isInstance(tabView)) {
+                tabTitleView = (TextView) tabView;
+            }
+
+            tabTitleView.setText(adapter.getPageTitle(i));
+            tabView.setOnClickListener(tabClickListener);
+
+            mTabStrip.addView(tabView);
+        }
+    }
+
+    @Override
+    protected void onAttachedToWindow() {
+        super.onAttachedToWindow();
+
+        if (mViewPager != null) {
+            scrollToTab(mViewPager.getCurrentItem(), 0);
+        }
+    }
+
+    private void scrollToTab(int tabIndex, int positionOffset) {
+        final int tabStripChildCount = mTabStrip.getChildCount();
+        if (tabStripChildCount == 0 || tabIndex < 0 || tabIndex >= tabStripChildCount) {
+            return;
+        }
+
+        View selectedChild = mTabStrip.getChildAt(tabIndex);
+        if (selectedChild != null) {
+            int targetScrollX = selectedChild.getLeft() + positionOffset;
+
+            if (tabIndex > 0 || positionOffset > 0) {
+                // If we're not at the first child and are mid-scroll, make sure we obey the offset
+                targetScrollX -= mTitleOffset;
+            }
+
+            scrollTo(targetScrollX, 0);
+        }
+    }
+
+    private class InternalViewPagerListener implements ViewPager.OnPageChangeListener {
+        private int mScrollState;
+
+        @Override
+        public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
+            int tabStripChildCount = mTabStrip.getChildCount();
+            if ((tabStripChildCount == 0) || (position < 0) || (position >= tabStripChildCount)) {
+                return;
+            }
+
+            mTabStrip.onViewPagerPageChanged(position, positionOffset);
+
+            View selectedTitle = mTabStrip.getChildAt(position);
+            int extraOffset = (selectedTitle != null)
+                    ? (int) (positionOffset * selectedTitle.getWidth())
+                    : 0;
+            scrollToTab(position, extraOffset);
+
+            if (mViewPagerPageChangeListener != null) {
+                mViewPagerPageChangeListener.onPageScrolled(position, positionOffset,
+                        positionOffsetPixels);
+            }
+        }
+
+        @Override
+        public void onPageScrollStateChanged(int state) {
+            mScrollState = state;
+
+            if (mViewPagerPageChangeListener != null) {
+                mViewPagerPageChangeListener.onPageScrollStateChanged(state);
+            }
+        }
+
+        @Override
+        public void onPageSelected(int position) {
+            if (mScrollState == ViewPager.SCROLL_STATE_IDLE) {
+                mTabStrip.onViewPagerPageChanged(position, 0f);
+                scrollToTab(position, 0);
+            }
+
+            if (mViewPagerPageChangeListener != null) {
+                mViewPagerPageChangeListener.onPageSelected(position);
+            }
+        }
+
+    }
+
+    private class TabClickListener implements View.OnClickListener {
+        @Override
+        public void onClick(View v) {
+            for (int i = 0; i < mTabStrip.getChildCount(); i++) {
+                if (v == mTabStrip.getChildAt(i)) {
+                    mViewPager.setCurrentItem(i);
+                    return;
+                }
+            }
+        }
+    }
+
+}

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/SlidingTabStrip.java

@@ -0,0 +1,211 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.sufficientlysecure.keychain.util;
+
+import android.R;
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.Paint;
+import android.util.AttributeSet;
+import android.util.TypedValue;
+import android.view.View;
+import android.widget.LinearLayout;
+
+/**
+ * Copied from http://developer.android.com/samples/SlidingTabsColors/index.html
+ */
+class SlidingTabStrip extends LinearLayout {
+
+    private static final int DEFAULT_BOTTOM_BORDER_THICKNESS_DIPS = 2;
+    private static final byte DEFAULT_BOTTOM_BORDER_COLOR_ALPHA = 0x26;
+    private static final int SELECTED_INDICATOR_THICKNESS_DIPS = 8;
+    private static final int DEFAULT_SELECTED_INDICATOR_COLOR = 0xFFAA66CC;
+
+    private static final int DEFAULT_DIVIDER_THICKNESS_DIPS = 1;
+    private static final byte DEFAULT_DIVIDER_COLOR_ALPHA = 0x20;
+    private static final float DEFAULT_DIVIDER_HEIGHT = 0.5f;
+
+    private final int mBottomBorderThickness;
+    private final Paint mBottomBorderPaint;
+
+    private final int mSelectedIndicatorThickness;
+    private final Paint mSelectedIndicatorPaint;
+
+    private final int mDefaultBottomBorderColor;
+
+    private final Paint mDividerPaint;
+    private final float mDividerHeight;
+
+    private int mSelectedPosition;
+    private float mSelectionOffset;
+
+    private SlidingTabLayout.TabColorizer mCustomTabColorizer;
+    private final SimpleTabColorizer mDefaultTabColorizer;
+
+    SlidingTabStrip(Context context) {
+        this(context, null);
+    }
+
+    SlidingTabStrip(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        setWillNotDraw(false);
+
+        final float density = getResources().getDisplayMetrics().density;
+
+        TypedValue outValue = new TypedValue();
+        context.getTheme().resolveAttribute(R.attr.colorForeground, outValue, true);
+        final int themeForegroundColor = outValue.data;
+
+        mDefaultBottomBorderColor = setColorAlpha(themeForegroundColor,
+                DEFAULT_BOTTOM_BORDER_COLOR_ALPHA);
+
+        mDefaultTabColorizer = new SimpleTabColorizer();
+        mDefaultTabColorizer.setIndicatorColors(DEFAULT_SELECTED_INDICATOR_COLOR);
+        mDefaultTabColorizer.setDividerColors(setColorAlpha(themeForegroundColor,
+                DEFAULT_DIVIDER_COLOR_ALPHA));
+
+        mBottomBorderThickness = (int) (DEFAULT_BOTTOM_BORDER_THICKNESS_DIPS * density);
+        mBottomBorderPaint = new Paint();
+        mBottomBorderPaint.setColor(mDefaultBottomBorderColor);
+
+        mSelectedIndicatorThickness = (int) (SELECTED_INDICATOR_THICKNESS_DIPS * density);
+        mSelectedIndicatorPaint = new Paint();
+
+        mDividerHeight = DEFAULT_DIVIDER_HEIGHT;
+        mDividerPaint = new Paint();
+        mDividerPaint.setStrokeWidth((int) (DEFAULT_DIVIDER_THICKNESS_DIPS * density));
+    }
+
+    void setCustomTabColorizer(SlidingTabLayout.TabColorizer customTabColorizer) {
+        mCustomTabColorizer = customTabColorizer;
+        invalidate();
+    }
+
+    void setSelectedIndicatorColors(int... colors) {
+        // Make sure that the custom colorizer is removed
+        mCustomTabColorizer = null;
+        mDefaultTabColorizer.setIndicatorColors(colors);
+        invalidate();
+    }
+
+    void setDividerColors(int... colors) {
+        // Make sure that the custom colorizer is removed
+        mCustomTabColorizer = null;
+        mDefaultTabColorizer.setDividerColors(colors);
+        invalidate();
+    }
+
+    void onViewPagerPageChanged(int position, float positionOffset) {
+        mSelectedPosition = position;
+        mSelectionOffset = positionOffset;
+        invalidate();
+    }
+
+    @Override
+    protected void onDraw(Canvas canvas) {
+        final int height = getHeight();
+        final int childCount = getChildCount();
+        final int dividerHeightPx = (int) (Math.min(Math.max(0f, mDividerHeight), 1f) * height);
+        final SlidingTabLayout.TabColorizer tabColorizer = mCustomTabColorizer != null
+                ? mCustomTabColorizer
+                : mDefaultTabColorizer;
+
+        // Thick colored underline below the current selection
+        if (childCount > 0) {
+            View selectedTitle = getChildAt(mSelectedPosition);
+            int left = selectedTitle.getLeft();
+            int right = selectedTitle.getRight();
+            int color = tabColorizer.getIndicatorColor(mSelectedPosition);
+
+            if (mSelectionOffset > 0f && mSelectedPosition < (getChildCount() - 1)) {
+                int nextColor = tabColorizer.getIndicatorColor(mSelectedPosition + 1);
+                if (color != nextColor) {
+                    color = blendColors(nextColor, color, mSelectionOffset);
+                }
+
+                // Draw the selection partway between the tabs
+                View nextTitle = getChildAt(mSelectedPosition + 1);
+                left = (int) (mSelectionOffset * nextTitle.getLeft() +
+                        (1.0f - mSelectionOffset) * left);
+                right = (int) (mSelectionOffset * nextTitle.getRight() +
+                        (1.0f - mSelectionOffset) * right);
+            }
+
+            mSelectedIndicatorPaint.setColor(color);
+
+            canvas.drawRect(left, height - mSelectedIndicatorThickness, right,
+                    height, mSelectedIndicatorPaint);
+        }
+
+        // Thin underline along the entire bottom edge
+        canvas.drawRect(0, height - mBottomBorderThickness, getWidth(), height, mBottomBorderPaint);
+
+        // Vertical separators between the titles
+        int separatorTop = (height - dividerHeightPx) / 2;
+        for (int i = 0; i < childCount - 1; i++) {
+            View child = getChildAt(i);
+            mDividerPaint.setColor(tabColorizer.getDividerColor(i));
+            canvas.drawLine(child.getRight(), separatorTop, child.getRight(),
+                    separatorTop + dividerHeightPx, mDividerPaint);
+        }
+    }
+
+    /**
+     * Set the alpha value of the {@code color} to be the given {@code alpha} value.
+     */
+    private static int setColorAlpha(int color, byte alpha) {
+        return Color.argb(alpha, Color.red(color), Color.green(color), Color.blue(color));
+    }
+
+    /**
+     * Blend {@code color1} and {@code color2} using the given ratio.
+     *
+     * @param ratio of which to blend. 1.0 will return {@code color1}, 0.5 will give an even blend,
+     *              0.0 will return {@code color2}.
+     */
+    private static int blendColors(int color1, int color2, float ratio) {
+        final float inverseRation = 1f - ratio;
+        float r = (Color.red(color1) * ratio) + (Color.red(color2) * inverseRation);
+        float g = (Color.green(color1) * ratio) + (Color.green(color2) * inverseRation);
+        float b = (Color.blue(color1) * ratio) + (Color.blue(color2) * inverseRation);
+        return Color.rgb((int) r, (int) g, (int) b);
+    }
+
+    private static class SimpleTabColorizer implements SlidingTabLayout.TabColorizer {
+        private int[] mIndicatorColors;
+        private int[] mDividerColors;
+
+        @Override
+        public final int getIndicatorColor(int position) {
+            return mIndicatorColors[position % mIndicatorColors.length];
+        }
+
+        @Override
+        public final int getDividerColor(int position) {
+            return mDividerColors[position % mDividerColors.length];
+        }
+
+        void setIndicatorColors(int... colors) {
+            mIndicatorColors = colors;
+        }
+
+        void setDividerColors(int... colors) {
+            mDividerColors = colors;
+        }
+    }
+}