Externalize secret key selection into fragment for reuse in different activities

11 files changed, 244 insertions, 170 deletions

diff --git a/OpenPGP-Keychain/res/layout/api_app_settings_fragment.xml b/OpenPGP-Keychain/res/layout/api_app_settings_fragment.xml
index a88d7afd2..cecb2f93d 100644
--- a/OpenPGP-Keychain/res/layout/api_app_settings_fragment.xml
+++ b/OpenPGP-Keychain/res/layout/api_app_settings_fragment.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:bootstrapbutton="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="wrap_content" >
 
@@ -37,49 +38,12 @@
                 android:textAppearance="?android:attr/textAppearanceMedium" />
         </RelativeLayout>
 
-        <LinearLayout
+        <fragment
+            android:id="@+id/api_app_settings_select_key_fragment"
+            android:name="org.sufficientlysecure.keychain.ui.SelectSecretKeyLayoutFragment"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:orientation="horizontal" >
-
-            <com.beardedhen.androidbootstrap.BootstrapButton
-                android:id="@+id/api_app_settings_select_key_button"
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:layout_gravity="center_vertical"
-                android:layout_margin="4dp"
-                android:text="@string/api_settings_select_key"
-                bootstrapbutton:bb_icon_left="fa-key"
-                bootstrapbutton:bb_size="default"
-                bootstrapbutton:bb_type="default" />
-
-            <LinearLayout
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:orientation="vertical"
-                android:paddingLeft="16dp" >
-
-                <TextView
-                    android:id="@+id/api_app_settings_user_id"
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:layout_gravity="right"
-                    android:ellipsize="end"
-                    android:singleLine="true"
-                    android:text="@string/api_settings_no_key"
-                    android:textAppearance="?android:attr/textAppearanceMedium" />
-
-                <TextView
-                    android:id="@+id/api_app_settings_user_id_rest"
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:layout_gravity="right"
-                    android:ellipsize="end"
-                    android:singleLine="true"
-                    android:text=""
-                    android:textAppearance="?android:attr/textAppearanceSmall" />
-            </LinearLayout>
-        </LinearLayout>
+            tools:layout="@layout/select_secret_key_layout_fragment" />
 
         <com.beardedhen.androidbootstrap.BootstrapButton
             android:id="@+id/api_app_settings_advanced_button"
diff --git a/OpenPGP-Keychain/res/layout/key_server_export.xml b/OpenPGP-Keychain/res/layout/key_server_export.xml
index 30e4e0644..bfc4278c4 100644
--- a/OpenPGP-Keychain/res/layout/key_server_export.xml
+++ b/OpenPGP-Keychain/res/layout/key_server_export.xml
@@ -5,7 +5,7 @@
     android:orientation="vertical" >
 
     <Spinner
-        android:id="@+id/keyServer"
+        android:id="@+id/sign_key_keyserver"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content" />
 
diff --git a/OpenPGP-Keychain/res/layout/key_server_query.xml b/OpenPGP-Keychain/res/layout/key_server_query.xml
index 20f260a95..ab76d3aed 100644
--- a/OpenPGP-Keychain/res/layout/key_server_query.xml
+++ b/OpenPGP-Keychain/res/layout/key_server_query.xml
@@ -5,7 +5,7 @@
     android:orientation="vertical" >
 
     <Spinner
-        android:id="@+id/keyServer"
+        android:id="@+id/sign_key_keyserver"
         android:layout_width="match_parent"
         android:layout_height="wrap_content" />
 
diff --git a/OpenPGP-Keychain/res/layout/select_secret_key_layout_fragment.xml b/OpenPGP-Keychain/res/layout/select_secret_key_layout_fragment.xml
new file mode 100644
index 000000000..7557a2830
--- /dev/null
+++ b/OpenPGP-Keychain/res/layout/select_secret_key_layout_fragment.xml
@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:bootstrapbutton="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="horizontal" >
+
+    <com.beardedhen.androidbootstrap.BootstrapButton
+        android:id="@+id/select_secret_key_select_key_button"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center_vertical"
+        android:layout_margin="4dp"
+        android:text="@string/api_settings_select_key"
+        bootstrapbutton:bb_icon_left="fa-key"
+        bootstrapbutton:bb_size="default"
+        bootstrapbutton:bb_type="default" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:paddingLeft="16dp" >
+
+        <TextView
+            android:id="@+id/select_secret_key_user_id"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="right"
+            android:ellipsize="end"
+            android:singleLine="true"
+            android:text="@string/api_settings_no_key"
+            android:textAppearance="?android:attr/textAppearanceMedium" />
+
+        <TextView
+            android:id="@+id/select_secret_key_user_id_rest"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="right"
+            android:ellipsize="end"
+            android:singleLine="true"
+            android:text=""
+            android:textAppearance="?android:attr/textAppearanceSmall" />
+    </LinearLayout>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/OpenPGP-Keychain/res/layout/sign_key_activity.xml b/OpenPGP-Keychain/res/layout/sign_key_activity.xml
index b9f66db7f..ada4572ca 100644
--- a/OpenPGP-Keychain/res/layout/sign_key_activity.xml
+++ b/OpenPGP-Keychain/res/layout/sign_key_activity.xml
@@ -1,14 +1,12 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:bootstrapbutton="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:orientation="vertical" >
+    android:orientation="vertical"
+    android:padding="10dp" >
 
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:orientation="horizontal" >
-    </LinearLayout>
+    <include layout="@layout/select_secret_key_layout_fragment" />
 
     <LinearLayout
         android:layout_width="match_parent"
@@ -16,20 +14,17 @@
         android:orientation="horizontal" >
 
         <TextView
-            android:id="@+id/textView1"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:text="@string/label_send_key"
-            android:textAppearance="?android:attr/textAppearanceMedium" >
-        </TextView>
+            android:textAppearance="?android:attr/textAppearanceMedium" />
 
         <CheckBox
-            android:id="@+id/sendKey"
+            android:id="@+id/sign_key_upload_checkbox"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:checked="true"
-            android:text="" >
-        </CheckBox>
+            android:text="" />
     </LinearLayout>
 
     <LinearLayout
@@ -38,17 +33,19 @@
         android:orientation="horizontal" >
 
         <Spinner
-            android:id="@+id/keyServer"
-            android:layout_width="wrap_content"
+            android:id="@+id/sign_key_keyserver"
+            android:layout_width="0dip"
             android:layout_height="wrap_content"
             android:layout_weight="1" />
     </LinearLayout>
 
-    <Button
-        android:id="@+id/sign"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="@string/btn_sign" >
-    </Button>
+    <com.beardedhen.androidbootstrap.BootstrapButton
+        android:id="@+id/sign_key_sign_button"
+        android:layout_width="match_parent"
+        android:layout_height="60dp"
+        android:padding="4dp"
+        android:text="@string/btn_sign"
+        bootstrapbutton:bb_icon_left="fa-lock"
+        bootstrapbutton:bb_type="info" />
 
 </LinearLayout>
\ No newline at end of file
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/service/remote/AppSettingsActivity.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/service/remote/AppSettingsActivity.java
index 4f1bedb6f..8d56fc593 100644
--- a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/service/remote/AppSettingsActivity.java
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/service/remote/AppSettingsActivity.java
@@ -35,7 +35,7 @@ import com.actionbarsherlock.view.MenuItem;
 public class AppSettingsActivity extends SherlockFragmentActivity {
     private Uri mAppUri;
 
-    private AppSettingsFragment settingsFragment;
+    private AppSettingsFragment mSettingsFragment;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -53,7 +53,7 @@ public class AppSettingsActivity extends SherlockFragmentActivity {
 
         setContentView(R.layout.api_app_settings_activity);
 
-        settingsFragment = (AppSettingsFragment) getSupportFragmentManager().findFragmentById(
+        mSettingsFragment = (AppSettingsFragment) getSupportFragmentManager().findFragmentById(
                 R.id.api_app_settings_fragment);
 
         Intent intent = getIntent();
@@ -90,7 +90,7 @@ public class AppSettingsActivity extends SherlockFragmentActivity {
 
     private void loadData(Uri appUri) {
         AppSettings settings = ProviderHelper.getApiAppSettings(this, appUri);
-        settingsFragment.setAppSettings(settings);
+        mSettingsFragment.setAppSettings(settings);
     }
 
     private void revokeAccess() {
@@ -101,7 +101,7 @@ public class AppSettingsActivity extends SherlockFragmentActivity {
     }
 
     private void save() {
-        ProviderHelper.updateApiApp(this, settingsFragment.getAppSettings(), mAppUri);
+        ProviderHelper.updateApiApp(this, mSettingsFragment.getAppSettings(), mAppUri);
 
         finish();
     }
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/service/remote/AppSettingsFragment.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/service/remote/AppSettingsFragment.java
index bb6e427a4..025929cfa 100644
--- a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/service/remote/AppSettingsFragment.java
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/service/remote/AppSettingsFragment.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2013 Dominik Schürmann <dominik@dominikschuermann.de>
+ * Copyright (C) 2013-2014 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
@@ -20,21 +20,14 @@ package org.sufficientlysecure.keychain.service.remote;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
 
-import org.spongycastle.openpgp.PGPSecretKey;
-import org.spongycastle.openpgp.PGPSecretKeyRing;
 import org.spongycastle.util.encoders.Hex;
 import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.Id;
 import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
-import org.sufficientlysecure.keychain.provider.ProviderHelper;
-import org.sufficientlysecure.keychain.ui.SelectSecretKeyActivity;
+import org.sufficientlysecure.keychain.ui.SelectSecretKeyLayoutFragment;
 import org.sufficientlysecure.keychain.ui.adapter.KeyValueSpinnerAdapter;
 import org.sufficientlysecure.keychain.util.AlgorithmNames;
 import org.sufficientlysecure.keychain.util.Log;
 
-import android.app.Activity;
-import android.content.Intent;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
@@ -56,7 +49,8 @@ import android.widget.TextView;
 
 import com.beardedhen.androidbootstrap.BootstrapButton;
 
-public class AppSettingsFragment extends Fragment {
+public class AppSettingsFragment extends Fragment implements
+        SelectSecretKeyLayoutFragment.SelectSecretKeyCallback {
 
     // model
     private AppSettings appSettings;
@@ -66,15 +60,14 @@ public class AppSettingsFragment extends Fragment {
     private BootstrapButton mAdvancedSettingsButton;
     private TextView mAppNameView;
     private ImageView mAppIconView;
-    private TextView mKeyUserId;
-    private TextView mKeyUserIdRest;
-    private BootstrapButton mSelectKeyButton;
     private Spinner mEncryptionAlgorithm;
     private Spinner mHashAlgorithm;
     private Spinner mCompression;
     private TextView mPackageName;
     private TextView mPackageSignature;
 
+    private SelectSecretKeyLayoutFragment mSelectKeyFragment;
+
     KeyValueSpinnerAdapter encryptionAdapter;
     KeyValueSpinnerAdapter hashAdapter;
     KeyValueSpinnerAdapter compressionAdapter;
@@ -99,7 +92,7 @@ public class AppSettingsFragment extends Fragment {
             Log.e(Constants.TAG, "Should not happen!", e);
         }
 
-        updateSelectedKeyView(appSettings.getKeyId());
+        mSelectKeyFragment.selectKey(appSettings.getKeyId());
         mEncryptionAlgorithm.setSelection(encryptionAdapter.getPosition(appSettings
                 .getEncryptionAlgorithm()));
         mHashAlgorithm.setSelection(hashAdapter.getPosition(appSettings.getHashAlgorithm()));
@@ -117,6 +110,10 @@ public class AppSettingsFragment extends Fragment {
     }
 
     private void initView(View view) {
+        mSelectKeyFragment = (SelectSecretKeyLayoutFragment) getFragmentManager().findFragmentById(
+                R.id.api_app_settings_select_key_fragment);
+        mSelectKeyFragment.setCallback(this);
+
         mAdvancedSettingsButton = (BootstrapButton) view
                 .findViewById(R.id.api_app_settings_advanced_button);
         mAdvancedSettingsContainer = (LinearLayout) view
@@ -124,10 +121,6 @@ public class AppSettingsFragment extends Fragment {
 
         mAppNameView = (TextView) view.findViewById(R.id.api_app_settings_app_name);
         mAppIconView = (ImageView) view.findViewById(R.id.api_app_settings_app_icon);
-        mKeyUserId = (TextView) view.findViewById(R.id.api_app_settings_user_id);
-        mKeyUserIdRest = (TextView) view.findViewById(R.id.api_app_settings_user_id_rest);
-        mSelectKeyButton = (BootstrapButton) view
-                .findViewById(R.id.api_app_settings_select_key_button);
         mEncryptionAlgorithm = (Spinner) view
                 .findViewById(R.id.api_app_settings_encryption_algorithm);
         mHashAlgorithm = (Spinner) view.findViewById(R.id.api_app_settings_hash_algorithm);
@@ -181,14 +174,6 @@ public class AppSettingsFragment extends Fragment {
             }
         });
 
-        mSelectKeyButton.setOnClickListener(new OnClickListener() {
-
-            @Override
-            public void onClick(View v) {
-                selectSecretKey();
-            }
-        });
-
         final Animation visibleAnimation = new AlphaAnimation(0.0f, 1.0f);
         visibleAnimation.setDuration(250);
         final Animation invisibleAnimation = new AlphaAnimation(1.0f, 0.0f);
@@ -219,16 +204,6 @@ public class AppSettingsFragment extends Fragment {
         });
     }
 
-    @Override
-    public void onActivityCreated(Bundle savedInstanceState) {
-        super.onActivityCreated(savedInstanceState);
-    }
-
-    private void selectSecretKey() {
-        Intent intent = new Intent(getActivity(), SelectSecretKeyActivity.class);
-        startActivityForResult(intent, Id.request.secret_keys);
-    }
-
     private void setPackage(String packageName) {
         PackageManager pm = getActivity().getApplicationContext().getPackageManager();
 
@@ -248,56 +223,12 @@ public class AppSettingsFragment extends Fragment {
         mAppIconView.setImageDrawable(appIcon);
     }
 
-    private void updateSelectedKeyView(long secretKeyId) {
-        if (secretKeyId == Id.key.none) {
-            mKeyUserId.setText(R.string.api_settings_no_key);
-            mKeyUserIdRest.setText("");
-        } else {
-            String uid = getResources().getString(R.string.unknown_user_id);
-            String uidExtra = "";
-            PGPSecretKeyRing keyRing = ProviderHelper.getPGPSecretKeyRingByMasterKeyId(
-                    getActivity(), secretKeyId);
-            if (keyRing != null) {
-                PGPSecretKey key = PgpKeyHelper.getMasterKey(keyRing);
-                if (key != null) {
-                    String userId = PgpKeyHelper.getMainUserIdSafe(getActivity(), key);
-                    String chunks[] = userId.split(" <", 2);
-                    uid = chunks[0];
-                    if (chunks.length > 1) {
-                        uidExtra = "<" + chunks[1];
-                    }
-                }
-            }
-            mKeyUserId.setText(uid);
-            mKeyUserIdRest.setText(uidExtra);
-        }
-    }
-
+    /**
+     * callback from select secret key fragment
+     */
     @Override
-    public void onActivityResult(int requestCode, int resultCode, Intent data) {
-        Log.d(Constants.TAG, "onactivityresult     " + requestCode + "   " + resultCode);
-        switch (requestCode) {
-
-        case Id.request.secret_keys: {
-            long secretKeyId;
-            if (resultCode == Activity.RESULT_OK) {
-                Bundle bundle = data.getExtras();
-                secretKeyId = bundle.getLong(SelectSecretKeyActivity.RESULT_EXTRA_MASTER_KEY_ID);
-
-            } else {
-                secretKeyId = Id.key.none;
-            }
-            appSettings.setKeyId(secretKeyId);
-            updateSelectedKeyView(secretKeyId);
-            break;
-        }
-
-        default: {
-            break;
-        }
-        }
-
-        super.onActivityResult(requestCode, resultCode, data);
+    public void onKeySelected(long secretKeyId) {
+        appSettings.setKeyId(secretKeyId);
     }
 
 }
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/KeyServerQueryActivity.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/KeyServerQueryActivity.java
index 6073e6b80..c3ec7b9c3 100644
--- a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/KeyServerQueryActivity.java
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/KeyServerQueryActivity.java
@@ -119,7 +119,7 @@ public class KeyServerQueryActivity extends SherlockFragmentActivity {
         mAdapter = new KeyInfoListAdapter(this);
         mList.setAdapter(mAdapter);
 
-        mKeyServer = (Spinner)findViewById(R.id.keyServer);
+        mKeyServer = (Spinner)findViewById(R.id.sign_key_keyserver);
         ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
                 android.R.layout.simple_spinner_item, Preferences.getPreferences(this)
                         .getKeyServers());
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/KeyServerUploadActivity.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/KeyServerUploadActivity.java
index 8a32ea513..2bf19ab92 100644
--- a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/KeyServerUploadActivity.java
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/KeyServerUploadActivity.java
@@ -79,7 +79,7 @@ public class KeyServerUploadActivity extends SherlockFragmentActivity {
         setContentView(R.layout.key_server_export);
 
         export = (Button) findViewById(R.id.btn_export_to_server);
-        keyServer = (Spinner) findViewById(R.id.keyServer);
+        keyServer = (Spinner) findViewById(R.id.sign_key_keyserver);
 
         ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
                 android.R.layout.simple_spinner_item, Preferences.getPreferences(this)
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/SelectSecretKeyLayoutFragment.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/SelectSecretKeyLayoutFragment.java
new file mode 100644
index 000000000..996071a31
--- /dev/null
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/SelectSecretKeyLayoutFragment.java
@@ -0,0 +1,131 @@
+/*
+ * 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 org.spongycastle.openpgp.PGPSecretKey;
+import org.spongycastle.openpgp.PGPSecretKeyRing;
+import org.sufficientlysecure.keychain.Id;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
+import org.sufficientlysecure.keychain.provider.ProviderHelper;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import com.beardedhen.androidbootstrap.BootstrapButton;
+
+public class SelectSecretKeyLayoutFragment extends Fragment {
+
+    private TextView mKeyUserId;
+    private TextView mKeyUserIdRest;
+    private BootstrapButton mSelectKeyButton;
+
+    private SelectSecretKeyCallback mCallback;
+
+    private static final int REQUEST_CODE_SELECT_KEY = 8882;
+
+    public interface SelectSecretKeyCallback {
+        void onKeySelected(long secretKeyId);
+    }
+
+    public void setCallback(SelectSecretKeyCallback callback) {
+        mCallback = callback;
+    }
+
+    /**
+     * Inflate the layout for this fragment
+     */
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        View view = inflater.inflate(R.layout.select_secret_key_layout_fragment, container, false);
+
+        mKeyUserId = (TextView) view.findViewById(R.id.select_secret_key_user_id);
+        mKeyUserIdRest = (TextView) view.findViewById(R.id.select_secret_key_user_id_rest);
+        mSelectKeyButton = (BootstrapButton) view
+                .findViewById(R.id.select_secret_key_select_key_button);
+        mSelectKeyButton.setOnClickListener(new OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                selectSecretKey();
+            }
+        });
+
+        return view;
+    }
+
+    private void selectSecretKey() {
+        Intent intent = new Intent(getActivity(), SelectSecretKeyActivity.class);
+        startActivityForResult(intent, REQUEST_CODE_SELECT_KEY);
+    }
+
+    public void selectKey(long secretKeyId) {
+        if (secretKeyId == Id.key.none) {
+            mKeyUserId.setText(R.string.api_settings_no_key);
+            mKeyUserIdRest.setText("");
+        } else {
+            String uid = getResources().getString(R.string.unknown_user_id);
+            String uidExtra = "";
+            PGPSecretKeyRing keyRing = ProviderHelper.getPGPSecretKeyRingByMasterKeyId(
+                    getActivity(), secretKeyId);
+            if (keyRing != null) {
+                PGPSecretKey key = PgpKeyHelper.getMasterKey(keyRing);
+                if (key != null) {
+                    String userId = PgpKeyHelper.getMainUserIdSafe(getActivity(), key);
+                    String chunks[] = userId.split(" <", 2);
+                    uid = chunks[0];
+                    if (chunks.length > 1) {
+                        uidExtra = "<" + chunks[1];
+                    }
+                }
+            }
+            mKeyUserId.setText(uid);
+            mKeyUserIdRest.setText(uidExtra);
+        }
+    }
+
+    @Override
+    public void onActivityResult(int requestCode, int resultCode, Intent data) {
+        switch (requestCode & 0xFFFF) {
+        case REQUEST_CODE_SELECT_KEY: {
+            long secretKeyId;
+            if (resultCode == Activity.RESULT_OK) {
+                Bundle bundle = data.getExtras();
+                secretKeyId = bundle.getLong(SelectSecretKeyActivity.RESULT_EXTRA_MASTER_KEY_ID);
+
+                selectKey(secretKeyId);
+
+                // give value back to callback
+                mCallback.onKeySelected(secretKeyId);
+            }
+            break;
+        }
+
+        default:
+            super.onActivityResult(requestCode, resultCode, data);
+
+            break;
+        }
+    }
+}
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/SignKeyActivity.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/SignKeyActivity.java
index 6abdddee6..a6390f9c9 100644
--- a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/SignKeyActivity.java
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/SignKeyActivity.java
@@ -50,6 +50,7 @@ import android.widget.Toast;
 
 import com.actionbarsherlock.app.ActionBar;
 import com.actionbarsherlock.app.SherlockFragmentActivity;
+import com.beardedhen.androidbootstrap.BootstrapButton;
 
 /**
  * gpg --sign-key
@@ -63,11 +64,15 @@ public class SignKeyActivity extends SherlockFragmentActivity {
     private long mPubKeyId = 0;
     private long mMasterKeyId = 0;
 
+    private BootstrapButton mSignButton;
+    private CheckBox mUploadKeyCheckbox;
+    private Spinner mSelectKeyserverSpinner;
+    private BootstrapButton mSelectKeyButton;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
-        // check we havent already signed it
         setContentView(R.layout.sign_key_activity);
 
         final ActionBar actionBar = getSupportActionBar();
@@ -75,35 +80,35 @@ public class SignKeyActivity extends SherlockFragmentActivity {
         actionBar.setDisplayHomeAsUpEnabled(false);
         actionBar.setHomeButtonEnabled(false);
 
-        final Spinner keyServer = (Spinner) findViewById(R.id.keyServer);
+        mSelectKeyserverSpinner = (Spinner) findViewById(R.id.sign_key_keyserver);
         ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
                 android.R.layout.simple_spinner_item, Preferences.getPreferences(this)
                         .getKeyServers());
         adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
-        keyServer.setAdapter(adapter);
+        mSelectKeyserverSpinner.setAdapter(adapter);
 
-        final CheckBox sendKey = (CheckBox) findViewById(R.id.sendKey);
-        if (!sendKey.isChecked()) {
-            keyServer.setEnabled(false);
+        mUploadKeyCheckbox = (CheckBox) findViewById(R.id.sign_key_upload_checkbox);
+        if (!mUploadKeyCheckbox.isChecked()) {
+            mSelectKeyserverSpinner.setEnabled(false);
         } else {
-            keyServer.setEnabled(true);
+            mSelectKeyserverSpinner.setEnabled(true);
         }
 
-        sendKey.setOnCheckedChangeListener(new OnCheckedChangeListener() {
+        mUploadKeyCheckbox.setOnCheckedChangeListener(new OnCheckedChangeListener() {
 
             @Override
             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                 if (!isChecked) {
-                    keyServer.setEnabled(false);
+                    mSelectKeyserverSpinner.setEnabled(false);
                 } else {
-                    keyServer.setEnabled(true);
+                    mSelectKeyserverSpinner.setEnabled(true);
                 }
             }
         });
 
-        Button sign = (Button) findViewById(R.id.sign);
-        sign.setEnabled(false); // disabled until the user selects a key to sign with
-        sign.setOnClickListener(new OnClickListener() {
+        mSignButton = (BootstrapButton) findViewById(R.id.sign_key_sign_button);
+        mSignButton.setEnabled(false); // disabled until the user selects a key to sign with
+        mSignButton.setOnClickListener(new OnClickListener() {
 
             @Override
             public void onClick(View v) {
@@ -221,7 +226,7 @@ public class SignKeyActivity extends SherlockFragmentActivity {
                             Toast.LENGTH_SHORT).show();
 
                     // check if we need to send the key to the server or not
-                    CheckBox sendKey = (CheckBox) findViewById(R.id.sendKey);
+                    CheckBox sendKey = (CheckBox) findViewById(R.id.sign_key_upload_checkbox);
                     if (sendKey.isChecked()) {
                         /*
                          * upload the newly signed key to the key server
@@ -256,7 +261,7 @@ public class SignKeyActivity extends SherlockFragmentActivity {
 
         data.putLong(KeychainIntentService.UPLOAD_KEY_KEYRING_ROW_ID, mPubKeyId);
 
-        Spinner keyServer = (Spinner) findViewById(R.id.keyServer);
+        Spinner keyServer = (Spinner) findViewById(R.id.sign_key_keyserver);
         String server = (String) keyServer.getSelectedItem();
         data.putString(KeychainIntentService.UPLOAD_KEY_SERVER, server);
 
@@ -299,7 +304,7 @@ public class SignKeyActivity extends SherlockFragmentActivity {
                 mMasterKeyId = bundle.getLong(SelectSecretKeyActivity.RESULT_EXTRA_MASTER_KEY_ID);
 
                 // re-enable the sign button so the user can initiate the sign process
-                Button sign = (Button) findViewById(R.id.sign);
+                Button sign = (Button) findViewById(R.id.sign_key_sign_button);
                 sign.setEnabled(true);
             }