Prevent nfc dialog from closing when touching outside of it, add cancel button

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

@@ -238,7 +238,7 @@ public class CreateKeyEmailFragment extends Fragment {
             if (createKeyActivity.mCreateYubiKey) {
                 hideKeyboard();
 
-                CreateYubiKeyPinRepeatFragment frag = CreateYubiKeyPinRepeatFragment.newInstance();
+                CreateYubiKeyPinFragment frag = CreateYubiKeyPinFragment.newInstance();
                 mCreateKeyActivity.loadFragment(frag, FragAction.TO_RIGHT);
             } else {
                 CreateKeyPassphraseFragment frag = CreateKeyPassphraseFragment.newInstance();

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

@@ -37,7 +37,7 @@ import java.security.SecureRandom;
 import java.util.Arrays;
 import java.util.HashSet;
 
-public class CreateYubiKeyPinRepeatFragment extends Fragment {
+public class CreateYubiKeyPinFragment extends Fragment {
 
     // view
     CreateKeyActivity mCreateKeyActivity;
@@ -65,8 +65,8 @@ public class CreateYubiKeyPinRepeatFragment extends Fragment {
     /**
      * Creates new instance of this fragment
      */
-    public static CreateYubiKeyPinRepeatFragment newInstance() {
+    public static CreateYubiKeyPinFragment newInstance() {
-        CreateYubiKeyPinRepeatFragment frag = new CreateYubiKeyPinRepeatFragment();
+        CreateYubiKeyPinFragment frag = new CreateYubiKeyPinFragment();
 
         Bundle args = new Bundle();
         frag.setArguments(args);
@@ -101,7 +101,7 @@ public class CreateYubiKeyPinRepeatFragment extends Fragment {
 
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
-        View view = inflater.inflate(R.layout.create_yubi_key_pin_repeat_fragment, container, false);
+        View view = inflater.inflate(R.layout.create_yubi_key_pin_fragment, container, false);
 
         mPin = (EditText) view.findViewById(R.id.create_yubi_key_pin);
         mPinRepeat = (EditText) view.findViewById(R.id.create_yubi_key_pin_repeat);

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

@@ -92,7 +92,9 @@ public class NfcOperationActivity extends BaseNfcActivity {
 
         // prevent annoying orientation changes while fumbling with the device
         OrientationUtils.lockOrientation(this);
-
+        // prevent close when touching outside of the dialog (happens easily when fumbling with the device)
+        setFinishOnTouchOutside(false);
+        // keep screen on
         getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 
         mInputParcel = getIntent().getParcelableExtra(EXTRA_CRYPTO_INPUT);
@@ -115,6 +117,14 @@ public class NfcOperationActivity extends BaseNfcActivity {
                 vAnimator.setDisplayedChild(0);
             }
         });
+        Button vCancel = (Button) findViewById(R.id.nfc_activity_0_cancel);
+        vCancel.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                setResult(RESULT_CANCELED);
+                finish();
+            }
+        });
 
         Intent intent = getIntent();
         Bundle data = intent.getExtras();

OpenKeychain/src/main/res/layout/nfc_operation_activity.xml

@@ -14,7 +14,7 @@
         android:measureAllChildren="false"
         android:minHeight="?listPreferredItemHeightSmall"
         android:outAnimation="@anim/fade_out"
-        custom:initialView="3">
+        custom:initialView="0">
 
         <RelativeLayout
             android:layout_width="match_parent"
@@ -41,6 +41,16 @@
                 android:adjustViewBounds="true"
                 android:background="@android:color/transparent"
                 android:src="@drawable/yubikey_phone" />
+
+            <Button
+                android:id="@+id/nfc_activity_0_cancel"
+                android:layout_width="wrap_content"
+                android:layout_height="48dp"
+                android:layout_alignParentStart="true"
+                android:layout_alignParentLeft="true"
+                android:layout_below="@+id/nfc_activity_0_image"
+                android:layout_margin="8dp"
+                android:text="@string/progress_cancel" />
         </RelativeLayout>
 
         <RelativeLayout