save selected provider in list preference

OpenPGP-Keychain-API/example-app/src/main/java/org/sufficientlysecure/keychain/demo/BaseActivity.java

@@ -16,9 +16,6 @@
 
 package org.sufficientlysecure.keychain.demo;
 
-import org.sufficientlysecure.keychain.demo.R;
-
-import android.app.Activity;
 import android.content.Intent;
 import android.os.Bundle;
 import android.preference.Preference;
@@ -27,10 +24,7 @@ import android.preference.PreferenceActivity;
 import android.widget.Toast;
 
 public class BaseActivity extends PreferenceActivity {
-    private Activity mActivity;
-
     private Preference mIntentDemo;
-    private Preference mContentProviderDemo;
     private Preference mCryptoProvider;
 
     /**
@@ -40,14 +34,11 @@ public class BaseActivity extends PreferenceActivity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
-        mActivity = this;
-
         // load preferences from xml
         addPreferencesFromResource(R.xml.base_preference);
 
         // find preferences
         mIntentDemo = (Preference) findPreference("intent_demo");
-        mContentProviderDemo = (Preference) findPreference("content_provider_demo");
         mCryptoProvider = (Preference) findPreference("openpgp_provider_demo");
 
         mIntentDemo.setOnPreferenceClickListener(new OnPreferenceClickListener() {
@@ -63,12 +54,11 @@ public class BaseActivity extends PreferenceActivity {
         mCryptoProvider.setOnPreferenceClickListener(new OnPreferenceClickListener() {
             @Override
             public boolean onPreferenceClick(Preference preference) {
-                startActivity(new Intent(mActivity, OpenPgpProviderActivity.class));
+                startActivity(new Intent(BaseActivity.this, OpenPgpProviderActivity.class));
 
                 return false;
             }
         });
-
     }
 
 }

OpenPGP-Keychain-API/example-app/src/main/java/org/sufficientlysecure/keychain/demo/OpenPgpProviderActivity.java

@@ -35,7 +35,6 @@ import android.widget.ListAdapter;
 import android.widget.TextView;
 import android.widget.Toast;
 
-import org.openintents.openpgp.IOpenPgpService;
 import org.openintents.openpgp.OpenPgpError;
 import org.openintents.openpgp.util.OpenPgpApi;
 import org.openintents.openpgp.util.OpenPgpConstants;
@@ -49,8 +48,6 @@ import java.util.ArrayList;
 import java.util.List;
 
 public class OpenPgpProviderActivity extends Activity {
-    Activity mActivity;
-
     EditText mMessage;
     EditText mCiphertext;
     EditText mEncryptUserIds;
@@ -59,7 +56,7 @@ public class OpenPgpProviderActivity extends Activity {
     Button mSignAndEncrypt;
     Button mDecryptAndVerify;
 
-    private OpenPgpServiceConnection mCryptoServiceConnection;
+    OpenPgpServiceConnection mCryptoServiceConnection;
 
     public static final int REQUEST_CODE_SIGN = 9910;
     public static final int REQUEST_CODE_ENCRYPT = 9911;
@@ -71,16 +68,14 @@ public class OpenPgpProviderActivity extends Activity {
         super.onCreate(icicle);
         setContentView(R.layout.openpgp_provider);
 
-        mActivity = this;
-
         mMessage = (EditText) findViewById(R.id.crypto_provider_demo_message);
         mCiphertext = (EditText) findViewById(R.id.crypto_provider_demo_ciphertext);
         mEncryptUserIds = (EditText) findViewById(R.id.crypto_provider_demo_encrypt_user_id);
-
         mSign = (Button) findViewById(R.id.crypto_provider_demo_sign);
         mEncrypt = (Button) findViewById(R.id.crypto_provider_demo_encrypt);
         mSignAndEncrypt = (Button) findViewById(R.id.crypto_provider_demo_sign_and_encrypt);
         mDecryptAndVerify = (Button) findViewById(R.id.crypto_provider_demo_decrypt_and_verify);
+
         mSign.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
@@ -110,11 +105,11 @@ public class OpenPgpProviderActivity extends Activity {
     }
 
     private void handleError(final OpenPgpError error) {
-        mActivity.runOnUiThread(new Runnable() {
+        runOnUiThread(new Runnable() {
 
             @Override
             public void run() {
-                Toast.makeText(mActivity,
+                Toast.makeText(OpenPgpProviderActivity.this,
                         "onError id:" + error.getErrorId() + "\n\n" + error.getMessage(),
                         Toast.LENGTH_LONG).show();
                 Log.e(Constants.TAG, "onError getErrorId:" + error.getErrorId());

OpenPGP-Keychain-API/example-app/src/main/res/xml/base_preference.xml

@@ -1,18 +1,18 @@
 <?xml version="1.0" encoding="utf-8"?>
-<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" >
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
 
-    <PreferenceCategory android:title="Intent" >
+    <PreferenceCategory android:title="OpenKeychain Intents">
         <Preference
             android:key="intent_demo"
             android:title="Intent Demo" />
     </PreferenceCategory>
-    <PreferenceCategory android:title="OpenPGP Provider" >
+    <PreferenceCategory android:title="OpenPGP Provider API">
         <org.openintents.openpgp.util.OpenPgpListPreference
             android:key="openpgp_provider_list"
             android:title="Select OpenPGP Provider!" />
         <Preference
             android:key="openpgp_provider_demo"
-            android:title="OpenPGP Provider" />
+            android:title="OpenPGP Provider Demo" />
     </PreferenceCategory>
 
 </PreferenceScreen>

OpenPGP-Keychain-API/libraries/keychain-api-library/src/org/openintents/openpgp/util/OpenPgpListPreference.java

@@ -21,6 +21,7 @@ import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.pm.ResolveInfo;
+import android.content.res.TypedArray;
 import android.graphics.drawable.Drawable;
 import android.preference.DialogPreference;
 import android.util.AttributeSet;
@@ -161,6 +162,16 @@ public class OpenPgpListPreference extends DialogPreference {
         return getEntryByValue(mSelectedPackage);
     }
 
+    @Override
+    protected Object onGetDefaultValue(TypedArray a, int index) {
+        return a.getString(index);
+    }
+
+    @Override
+    protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
+        setValue(restoreValue ? getPersistedString(mSelectedPackage) : (String) defaultValue);
+    }
+
     public String getEntryByValue(String packageName) {
         for (OpenPgpProviderEntry app : mProviderList) {
             if (app.packageName.equals(packageName)) {

libraries/keychain-api-library/src/org/openintents/openpgp/util/OpenPgpListPreference.java

@@ -21,6 +21,7 @@ import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.pm.ResolveInfo;
+import android.content.res.TypedArray;
 import android.graphics.drawable.Drawable;
 import android.preference.DialogPreference;
 import android.util.AttributeSet;
@@ -161,6 +162,16 @@ public class OpenPgpListPreference extends DialogPreference {
         return getEntryByValue(mSelectedPackage);
     }
 
+    @Override
+    protected Object onGetDefaultValue(TypedArray a, int index) {
+        return a.getString(index);
+    }
+
+    @Override
+    protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
+        setValue(restoreValue ? getPersistedString(mSelectedPackage) : (String) defaultValue);
+    }
+
     public String getEntryByValue(String packageName) {
         for (OpenPgpProviderEntry app : mProviderList) {
             if (app.packageName.equals(packageName)) {