diff --git a/OpenPGP-Keychain/libs/android-support-v4.jar b/OpenPGP-Keychain/libs/android-support-v4.jar
index 99e063b33..9056828a0 100644
Binary files a/OpenPGP-Keychain/libs/android-support-v4.jar and b/OpenPGP-Keychain/libs/android-support-v4.jar differ
diff --git a/OpenPGP-Keychain/res/drawable-hdpi/drawer_shadow.9.png b/OpenPGP-Keychain/res/drawable-hdpi/drawer_shadow.9.png
new file mode 100644
index 000000000..224cc4ff4
Binary files /dev/null and b/OpenPGP-Keychain/res/drawable-hdpi/drawer_shadow.9.png differ
diff --git a/OpenPGP-Keychain/res/drawable-hdpi/ic_drawer.png b/OpenPGP-Keychain/res/drawable-hdpi/ic_drawer.png
new file mode 100644
index 000000000..ff7b1def9
Binary files /dev/null and b/OpenPGP-Keychain/res/drawable-hdpi/ic_drawer.png differ
diff --git a/OpenPGP-Keychain/res/drawable-hdpi/ic_menu_filebrowser.png b/OpenPGP-Keychain/res/drawable-hdpi/ic_menu_filebrowser.png
deleted file mode 100644
index 3db304fa8..000000000
Binary files a/OpenPGP-Keychain/res/drawable-hdpi/ic_menu_filebrowser.png and /dev/null differ
diff --git a/OpenPGP-Keychain/res/drawable-mdpi/drawer_shadow.9.png b/OpenPGP-Keychain/res/drawable-mdpi/drawer_shadow.9.png
new file mode 100644
index 000000000..3797f99c0
Binary files /dev/null and b/OpenPGP-Keychain/res/drawable-mdpi/drawer_shadow.9.png differ
diff --git a/OpenPGP-Keychain/res/drawable-mdpi/ic_drawer.png b/OpenPGP-Keychain/res/drawable-mdpi/ic_drawer.png
new file mode 100644
index 000000000..fb681ba26
Binary files /dev/null and b/OpenPGP-Keychain/res/drawable-mdpi/ic_drawer.png differ
diff --git a/OpenPGP-Keychain/res/drawable-mdpi/ic_menu_filebrowser.png b/OpenPGP-Keychain/res/drawable-mdpi/ic_menu_filebrowser.png
deleted file mode 100644
index fda13f1be..000000000
Binary files a/OpenPGP-Keychain/res/drawable-mdpi/ic_menu_filebrowser.png and /dev/null differ
diff --git a/OpenPGP-Keychain/res/drawable-xhdpi/drawer_shadow.9.png b/OpenPGP-Keychain/res/drawable-xhdpi/drawer_shadow.9.png
new file mode 100644
index 000000000..fa3d853e9
Binary files /dev/null and b/OpenPGP-Keychain/res/drawable-xhdpi/drawer_shadow.9.png differ
diff --git a/OpenPGP-Keychain/res/drawable-xhdpi/ic_drawer.png b/OpenPGP-Keychain/res/drawable-xhdpi/ic_drawer.png
new file mode 100644
index 000000000..b9bc3d70f
Binary files /dev/null and b/OpenPGP-Keychain/res/drawable-xhdpi/ic_drawer.png differ
diff --git a/OpenPGP-Keychain/res/drawable-xhdpi/ic_menu_filebrowser.png b/OpenPGP-Keychain/res/drawable-xhdpi/ic_menu_filebrowser.png
deleted file mode 100644
index d1324014d..000000000
Binary files a/OpenPGP-Keychain/res/drawable-xhdpi/ic_menu_filebrowser.png and /dev/null differ
diff --git a/OpenPGP-Keychain/res/layout/api_app_settings_fragment.xml b/OpenPGP-Keychain/res/layout/api_app_settings_fragment.xml
index a40444e0f..a88d7afd2 100644
--- a/OpenPGP-Keychain/res/layout/api_app_settings_fragment.xml
+++ b/OpenPGP-Keychain/res/layout/api_app_settings_fragment.xml
@@ -1,5 +1,6 @@
 <?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"
     android:layout_width="match_parent"
     android:layout_height="wrap_content" >
 
@@ -41,12 +42,16 @@
             android:layout_height="wrap_content"
             android:orientation="horizontal" >
 
-            <Button
+            <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:text="@string/api_settings_select_key" />
+                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"
@@ -76,11 +81,16 @@
             </LinearLayout>
         </LinearLayout>
 
-        <Button
+        <com.beardedhen.androidbootstrap.BootstrapButton
             android:id="@+id/api_app_settings_advanced_button"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:text="@string/api_settings_show_advanced" />
+            android:layout_gravity="center_vertical"
+            android:layout_margin="4dp"
+            android:text="@string/api_settings_show_advanced"
+            bootstrapbutton:bb_icon_left="fa-caret-up"
+            bootstrapbutton:bb_size="default"
+            bootstrapbutton:bb_type="default" />
 
         <LinearLayout
             android:id="@+id/api_app_settings_advanced"
diff --git a/OpenPGP-Keychain/res/layout/drawer_list_item.xml b/OpenPGP-Keychain/res/layout/drawer_list_item.xml
new file mode 100644
index 000000000..d8e39399c
--- /dev/null
+++ b/OpenPGP-Keychain/res/layout/drawer_list_item.xml
@@ -0,0 +1,36 @@
+<!--
+  Copyright 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.
+  -->
+
+<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@android:id/text1"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:textAppearance="@android:style/TextAppearance.Medium"
+    android:gravity="center_vertical"
+    android:padding="16dp"
+    android:textColor="#fff"/>
+<!-- 
+<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@android:id/text1"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:textAppearance="?android:attr/textAppearanceListItemSmall"
+    android:gravity="center_vertical"
+    android:paddingLeft="16dp"
+    android:paddingRight="16dp"
+    android:textColor="#fff"
+    android:background="?android:attr/activatedBackgroundIndicator"
+    android:minHeight="?android:attr/listPreferredItemHeightSmall"/> -->
diff --git a/OpenPGP-Keychain/res/layout/fragment_planet.xml b/OpenPGP-Keychain/res/layout/fragment_planet.xml
new file mode 100644
index 000000000..4fe5bbe61
--- /dev/null
+++ b/OpenPGP-Keychain/res/layout/fragment_planet.xml
@@ -0,0 +1,23 @@
+<!--
+  Copyright 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.
+  -->
+
+<ImageView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/image"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="#000000"
+    android:gravity="center"
+    android:padding="32dp" />
diff --git a/OpenPGP-Keychain/res/layout/key_list_public_activity.xml b/OpenPGP-Keychain/res/layout/key_list_public_activity.xml
index 07ec253cc..704b3c8c9 100644
--- a/OpenPGP-Keychain/res/layout/key_list_public_activity.xml
+++ b/OpenPGP-Keychain/res/layout/key_list_public_activity.xml
@@ -1,14 +1,38 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<!-- A DrawerLayout is intended to be used as the top-level content view using match_parent for both width and height to consume the full space available. -->
+<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/drawer_layout"
     android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical" >
+    android:layout_height="match_parent" >
 
-    <fragment
-        android:id="@+id/key_list_public_fragment"
-        android:name="org.sufficientlysecure.keychain.ui.KeyListPublicFragment"
+    <FrameLayout
         android:layout_width="match_parent"
-        android:layout_height="0dip"
-        android:layout_weight="1" />
+        android:layout_height="match_parent" >
 
-</LinearLayout>
\ No newline at end of file
+        <fragment
+            android:id="@+id/key_list_public_fragment"
+            android:name="org.sufficientlysecure.keychain.ui.KeyListPublicFragment"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent" />
+    </FrameLayout>
+
+    <!--
+         android:layout_gravity="start" tells DrawerLayout to treat
+         this as a sliding drawer on the left side for left-to-right
+         languages and on the right side for right-to-left languages.
+         The drawer is given a fixed width in dp and extends the full height of
+         the container. A solid background is used for contrast
+         with the content view.
+    -->
+
+    <ListView
+        android:id="@+id/left_drawer"
+        android:layout_width="240dp"
+        android:layout_height="match_parent"
+        android:layout_gravity="start"
+        android:background="#111"
+        android:choiceMode="singleChoice"
+        android:divider="@android:color/transparent"
+        android:dividerHeight="0dp" />
+
+</android.support.v4.widget.DrawerLayout>
\ No newline at end of file
diff --git a/OpenPGP-Keychain/res/values-sw600dp/dimens.xml b/OpenPGP-Keychain/res/values-sw600dp/dimens.xml
new file mode 100644
index 000000000..1ba777d65
--- /dev/null
+++ b/OpenPGP-Keychain/res/values-sw600dp/dimens.xml
@@ -0,0 +1,8 @@
+<resources>
+
+    <!--
+         Customize dimensions originally defined in res/values/dimens.xml (such as
+         screen margins) for sw600dp devices (e.g. 7" tablets) here.
+    -->
+
+</resources>
\ No newline at end of file
diff --git a/OpenPGP-Keychain/res/values-sw720dp-land/dimens.xml b/OpenPGP-Keychain/res/values-sw720dp-land/dimens.xml
new file mode 100644
index 000000000..eee741a51
--- /dev/null
+++ b/OpenPGP-Keychain/res/values-sw720dp-land/dimens.xml
@@ -0,0 +1,9 @@
+<resources>
+
+    <!--
+         Customize dimensions originally defined in res/values/dimens.xml (such as
+         screen margins) for sw720dp devices (e.g. 10" tablets) in landscape here.
+    -->
+    <dimen name="activity_horizontal_margin">128dp</dimen>
+
+</resources>
\ No newline at end of file
diff --git a/OpenPGP-Keychain/res/values/dimens.xml b/OpenPGP-Keychain/res/values/dimens.xml
new file mode 100644
index 000000000..a6dd14032
--- /dev/null
+++ b/OpenPGP-Keychain/res/values/dimens.xml
@@ -0,0 +1,7 @@
+<resources>
+
+    <!-- Default screen margins, per the Android Design guidelines. -->
+    <dimen name="activity_horizontal_margin">16dp</dimen>
+    <dimen name="activity_vertical_margin">16dp</dimen>
+
+</resources>
\ No newline at end of file
diff --git a/OpenPGP-Keychain/res/values/strings.xml b/OpenPGP-Keychain/res/values/strings.xml
index b02d72bb8..e9ce05b77 100644
--- a/OpenPGP-Keychain/res/values/strings.xml
+++ b/OpenPGP-Keychain/res/values/strings.xml
@@ -19,7 +19,7 @@
 <resources>
 
     <!-- title -->
-    <string name="title_manage_public_keys">Public Keys</string>
+    <string name="title_manage_public_keys">Contacts</string>
     <string name="title_manage_secret_keys">Secret Keys</string>
     <string name="title_select_recipients">Select Public Key</string>
     <string name="title_select_secret_key">Select Secret Key</string>
@@ -301,7 +301,7 @@
     <string name="compression_very_slow">very slow</string>
 
     <!-- Dashboard -->
-    <string name="dashboard_manage_keys">Manage Public Keys</string>
+    <string name="dashboard_manage_keys">Contacts</string>
     <string name="dashboard_my_keys">My Secret Keys</string>
     <string name="dashboard_encrypt">Encrypt</string>
     <string name="dashboard_decrypt">Decrypt</string>
@@ -331,8 +331,8 @@
 
     <!-- Remote API -->
     <string name="api_no_apps">No registered applications!</string>
-    <string name="api_settings_show_advanced">Show advanced settings…</string>
-    <string name="api_settings_hide_advanced">Hide advanced settings…</string>
+    <string name="api_settings_show_advanced">Show advanced settings</string>
+    <string name="api_settings_hide_advanced">Hide advanced settings</string>
     <string name="api_settings_no_key">No key selected</string>
     <string name="api_settings_select_key">Select key</string>
     <string name="api_settings_save">Save</string>
@@ -369,4 +369,19 @@
     <!-- Key view -->
     <string name="key_view_action_encrypt">Encrypt to this contact</string>
 
+    <!-- Navigation Drawer -->
+    <string-array name="drawer_array">
+        <item>Contacts</item>
+        <item>Encrypt</item>
+        <item>Decrypt</item>
+        <item>Import Keys</item>
+        <item>My Keys</item>
+        <item>Settings</item>
+        <item>Registered Apps</item>
+        <item>Help</item>
+    </string-array>
+
+    <string name="drawer_open">Open navigation drawer</string>
+    <string name="drawer_close">Close navigation drawer</string>
+
 </resources>
\ No newline at end of file
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 e592f5d57..bb6e427a4 100644
--- a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/service/remote/AppSettingsFragment.java
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/service/remote/AppSettingsFragment.java
@@ -49,12 +49,13 @@ import android.view.animation.AlphaAnimation;
 import android.view.animation.Animation;
 import android.widget.AdapterView;
 import android.widget.AdapterView.OnItemSelectedListener;
-import android.widget.Button;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.Spinner;
 import android.widget.TextView;
 
+import com.beardedhen.androidbootstrap.BootstrapButton;
+
 public class AppSettingsFragment extends Fragment {
 
     // model
@@ -62,12 +63,12 @@ public class AppSettingsFragment extends Fragment {
 
     // view
     private LinearLayout mAdvancedSettingsContainer;
-    private Button mAdvancedSettingsButton;
+    private BootstrapButton mAdvancedSettingsButton;
     private TextView mAppNameView;
     private ImageView mAppIconView;
     private TextView mKeyUserId;
     private TextView mKeyUserIdRest;
-    private Button mSelectKeyButton;
+    private BootstrapButton mSelectKeyButton;
     private Spinner mEncryptionAlgorithm;
     private Spinner mHashAlgorithm;
     private Spinner mCompression;
@@ -116,7 +117,8 @@ public class AppSettingsFragment extends Fragment {
     }
 
     private void initView(View view) {
-        mAdvancedSettingsButton = (Button) view.findViewById(R.id.api_app_settings_advanced_button);
+        mAdvancedSettingsButton = (BootstrapButton) view
+                .findViewById(R.id.api_app_settings_advanced_button);
         mAdvancedSettingsContainer = (LinearLayout) view
                 .findViewById(R.id.api_app_settings_advanced);
 
@@ -124,7 +126,8 @@ public class AppSettingsFragment extends Fragment {
         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 = (Button) view.findViewById(R.id.api_app_settings_select_key_button);
+        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);
@@ -204,11 +207,13 @@ public class AppSettingsFragment extends Fragment {
                 if (mAdvancedSettingsContainer.getVisibility() == View.VISIBLE) {
                     mAdvancedSettingsContainer.startAnimation(invisibleAnimation);
                     mAdvancedSettingsContainer.setVisibility(View.GONE);
-                    mAdvancedSettingsButton.setText(R.string.api_settings_show_advanced);
+                    mAdvancedSettingsButton.setText(getString(R.string.api_settings_show_advanced));
+                    mAdvancedSettingsButton.setLeftIcon("fa-caret-up");
                 } else {
                     mAdvancedSettingsContainer.startAnimation(visibleAnimation);
                     mAdvancedSettingsContainer.setVisibility(View.VISIBLE);
-                    mAdvancedSettingsButton.setText(R.string.api_settings_hide_advanced);
+                    mAdvancedSettingsButton.setText(getString(R.string.api_settings_hide_advanced));
+                    mAdvancedSettingsButton.setLeftIcon("fa-caret-down");
                 }
             }
         });
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/DrawerActivity.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/DrawerActivity.java
new file mode 100644
index 000000000..e278af5e3
--- /dev/null
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/DrawerActivity.java
@@ -0,0 +1,444 @@
+/*
+ * 
+ * from https://github.com/tobykurien/SherlockNavigationDrawer
+ * 
+ * Copyright 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.ui;
+
+import org.sufficientlysecure.keychain.R;
+
+import android.content.Intent;
+import android.content.res.Configuration;
+import android.graphics.drawable.Drawable;
+import android.os.Bundle;
+import android.support.v4.app.ActionBarDrawerToggle;
+import android.support.v4.view.GravityCompat;
+import android.support.v4.widget.DrawerLayout;
+import android.view.ActionProvider;
+import android.view.ContextMenu.ContextMenuInfo;
+import android.view.SubMenu;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.ListView;
+
+import com.actionbarsherlock.app.SherlockFragmentActivity;
+import com.actionbarsherlock.view.Menu;
+import com.actionbarsherlock.view.MenuItem;
+
+/**
+ * This example illustrates a common usage of the DrawerLayout widget in the Android support
+ * library.
+ * <p/>
+ * <p>
+ * When a navigation (left) drawer is present, the host activity should detect presses of the action
+ * bar's Up affordance as a signal to open and close the navigation drawer. The
+ * ActionBarDrawerToggle facilitates this behavior. Items within the drawer should fall into one of
+ * two categories:
+ * </p>
+ * <p/>
+ * <ul>
+ * <li><strong>View switches</strong>. A view switch follows the same basic policies as list or tab
+ * navigation in that a view switch does not create navigation history. This pattern should only be
+ * used at the root activity of a task, leaving some form of Up navigation active for activities
+ * further down the navigation hierarchy.</li>
+ * <li><strong>Selective Up</strong>. The drawer allows the user to choose an alternate parent for
+ * Up navigation. This allows a user to jump across an app's navigation hierarchy at will. The
+ * application should treat this as it treats Up navigation from a different task, replacing the
+ * current task stack using TaskStackBuilder or similar. This is the only form of navigation drawer
+ * that should be used outside of the root activity of a task.</li>
+ * </ul>
+ * <p/>
+ * <p>
+ * Right side drawers should be used for actions, not navigation. This follows the pattern
+ * established by the Action Bar that navigation should be to the left and actions to the right. An
+ * action should be an operation performed on the current contents of the window, for example
+ * enabling or disabling a data overlay on top of the current content.
+ * </p>
+ */
+public class DrawerActivity extends SherlockFragmentActivity {
+    private DrawerLayout mDrawerLayout;
+    private ListView mDrawerList;
+    private ActionBarDrawerToggle mDrawerToggle;
+
+    private CharSequence mDrawerTitle;
+    private CharSequence mTitle;
+    private String[] mDrawerTitles;
+
+    protected void setupDrawerNavigation(Bundle savedInstanceState) {
+        // mTitle = mDrawerTitle = getTitle();
+        mDrawerTitles = getResources().getStringArray(R.array.drawer_array);
+        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
+        mDrawerList = (ListView) findViewById(R.id.left_drawer);
+
+        // set a custom shadow that overlays the main content when the drawer
+        // opens
+        mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);
+        // set up the drawer's list view with items and click listener
+        mDrawerList.setAdapter(new ArrayAdapter<String>(this, R.layout.drawer_list_item,
+                mDrawerTitles));
+        mDrawerList.setOnItemClickListener(new DrawerItemClickListener());
+
+        // enable ActionBar app icon to behave as action to toggle nav drawer
+        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+        getSupportActionBar().setHomeButtonEnabled(true);
+
+        // ActionBarDrawerToggle ties together the the proper interactions
+        // between the sliding drawer and the action bar app icon
+        mDrawerToggle = new ActionBarDrawerToggle(this, /* host Activity */
+        mDrawerLayout, /* DrawerLayout object */
+        R.drawable.ic_drawer, /* nav drawer image to replace 'Up' caret */
+        R.string.drawer_open, /* "open drawer" description for accessibility */
+        R.string.drawer_close /* "close drawer" description for accessibility */
+        ) {
+            public void onDrawerClosed(View view) {
+                getSupportActionBar().setTitle(mTitle);
+                supportInvalidateOptionsMenu(); // creates call to
+                                                // onPrepareOptionsMenu()
+            }
+
+            public void onDrawerOpened(View drawerView) {
+                getSupportActionBar().setTitle(mDrawerTitle);
+                supportInvalidateOptionsMenu(); // creates call to
+                                                // onPrepareOptionsMenu()
+            }
+        };
+        mDrawerLayout.setDrawerListener(mDrawerToggle);
+
+        if (savedInstanceState == null) {
+            selectItem(0);
+        }
+    }
+
+    /* Called whenever we call invalidateOptionsMenu() */
+    @Override
+    public boolean onPrepareOptionsMenu(Menu menu) {
+        // If the nav drawer is open, hide action items related to the content
+        // view
+        boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList);
+        // menu.findItem(R.id.action_websearch).setVisible(!drawerOpen);
+        return super.onPrepareOptionsMenu(menu);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(final MenuItem item) {
+        // The action bar home/up action should open or close the drawer.
+        // ActionBarDrawerToggle will take care of this.
+        if (mDrawerToggle.onOptionsItemSelected(getMenuItem(item))) {
+            return true;
+        }
+
+        // Handle action buttons
+        switch (item.getItemId()) {
+        // case R.id.action_websearch:
+        // // create intent to perform web search for this planet
+        // Intent intent = new Intent(Intent.ACTION_WEB_SEARCH);
+        // intent.putExtra(SearchManager.QUERY, getSupportActionBar().getTitle());
+        // // catch event that there's no activity to handle intent
+        // if (intent.resolveActivity(getPackageManager()) != null) {
+        // startActivity(intent);
+        // } else {
+        // Toast.makeText(this, R.string.app_not_available, Toast.LENGTH_LONG).show();
+        // }
+        // return true;
+        default:
+            return super.onOptionsItemSelected(item);
+        }
+    }
+
+    private android.view.MenuItem getMenuItem(final MenuItem item) {
+        return new android.view.MenuItem() {
+            @Override
+            public int getItemId() {
+                return item.getItemId();
+            }
+
+            public boolean isEnabled() {
+                return true;
+            }
+
+            @Override
+            public boolean collapseActionView() {
+                return false;
+            }
+
+            @Override
+            public boolean expandActionView() {
+                return false;
+            }
+
+            @Override
+            public ActionProvider getActionProvider() {
+                return null;
+            }
+
+            @Override
+            public View getActionView() {
+                return null;
+            }
+
+            @Override
+            public char getAlphabeticShortcut() {
+                return 0;
+            }
+
+            @Override
+            public int getGroupId() {
+                return 0;
+            }
+
+            @Override
+            public Drawable getIcon() {
+                return null;
+            }
+
+            @Override
+            public Intent getIntent() {
+                return null;
+            }
+
+            @Override
+            public ContextMenuInfo getMenuInfo() {
+                return null;
+            }
+
+            @Override
+            public char getNumericShortcut() {
+                return 0;
+            }
+
+            @Override
+            public int getOrder() {
+                return 0;
+            }
+
+            @Override
+            public SubMenu getSubMenu() {
+                return null;
+            }
+
+            @Override
+            public CharSequence getTitle() {
+                return null;
+            }
+
+            @Override
+            public CharSequence getTitleCondensed() {
+                return null;
+            }
+
+            @Override
+            public boolean hasSubMenu() {
+                return false;
+            }
+
+            @Override
+            public boolean isActionViewExpanded() {
+                return false;
+            }
+
+            @Override
+            public boolean isCheckable() {
+                return false;
+            }
+
+            @Override
+            public boolean isChecked() {
+                return false;
+            }
+
+            @Override
+            public boolean isVisible() {
+                return false;
+            }
+
+            @Override
+            public android.view.MenuItem setActionProvider(ActionProvider actionProvider) {
+                return null;
+            }
+
+            @Override
+            public android.view.MenuItem setActionView(View view) {
+                return null;
+            }
+
+            @Override
+            public android.view.MenuItem setActionView(int resId) {
+                return null;
+            }
+
+            @Override
+            public android.view.MenuItem setAlphabeticShortcut(char alphaChar) {
+                return null;
+            }
+
+            @Override
+            public android.view.MenuItem setCheckable(boolean checkable) {
+                return null;
+            }
+
+            @Override
+            public android.view.MenuItem setChecked(boolean checked) {
+                return null;
+            }
+
+            @Override
+            public android.view.MenuItem setEnabled(boolean enabled) {
+                return null;
+            }
+
+            @Override
+            public android.view.MenuItem setIcon(Drawable icon) {
+                return null;
+            }
+
+            @Override
+            public android.view.MenuItem setIcon(int iconRes) {
+                return null;
+            }
+
+            @Override
+            public android.view.MenuItem setIntent(Intent intent) {
+                return null;
+            }
+
+            @Override
+            public android.view.MenuItem setNumericShortcut(char numericChar) {
+                return null;
+            }
+
+            @Override
+            public android.view.MenuItem setOnActionExpandListener(OnActionExpandListener listener) {
+                return null;
+            }
+
+            @Override
+            public android.view.MenuItem setOnMenuItemClickListener(
+                    OnMenuItemClickListener menuItemClickListener) {
+                return null;
+            }
+
+            @Override
+            public android.view.MenuItem setShortcut(char numericChar, char alphaChar) {
+                return null;
+            }
+
+            @Override
+            public void setShowAsAction(int actionEnum) {
+            }
+
+            @Override
+            public android.view.MenuItem setShowAsActionFlags(int actionEnum) {
+                return null;
+            }
+
+            @Override
+            public android.view.MenuItem setTitle(CharSequence title) {
+                return null;
+            }
+
+            @Override
+            public android.view.MenuItem setTitle(int title) {
+                return null;
+            }
+
+            @Override
+            public android.view.MenuItem setTitleCondensed(CharSequence title) {
+                return null;
+            }
+
+            @Override
+            public android.view.MenuItem setVisible(boolean visible) {
+                return null;
+            }
+        };
+    }
+
+    /* The click listner for ListView in the navigation drawer */
+    private class DrawerItemClickListener implements ListView.OnItemClickListener {
+        @Override
+        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+            selectItem(position);
+        }
+    }
+
+    private void selectItem(int position) {
+        // update the main content by replacing fragments
+        // Fragment fragment = new PlanetFragment();
+        // Bundle args = new Bundle();
+        // args.putInt(PlanetFragment.ARG_PLANET_NUMBER, position);
+        // fragment.setArguments(args);
+
+        // FragmentManager fragmentManager = getSupportFragmentManager();
+        // fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit();
+
+        // update selected item and title, then close the drawer
+        mDrawerList.setItemChecked(position, true);
+        // setTitle(mDrawerTitles[position]);
+        mDrawerLayout.closeDrawer(mDrawerList);
+    }
+
+    // @Override
+    // public void setTitle(CharSequence title) {
+    // mTitle = title;
+    // getSupportActionBar().setTitle(mTitle);
+    // }
+
+    /**
+     * When using the ActionBarDrawerToggle, you must call it during onPostCreate() and
+     * onConfigurationChanged()...
+     */
+
+    @Override
+    protected void onPostCreate(Bundle savedInstanceState) {
+        super.onPostCreate(savedInstanceState);
+        // Sync the toggle state after onRestoreInstanceState has occurred.
+        mDrawerToggle.syncState();
+    }
+
+    @Override
+    public void onConfigurationChanged(Configuration newConfig) {
+        super.onConfigurationChanged(newConfig);
+        // Pass any configuration change to the drawer toggles
+        mDrawerToggle.onConfigurationChanged(newConfig);
+    }
+
+    /**
+     * Fragment that appears in the "content_frame", shows a planet
+     */
+    // public static class PlanetFragment extends SherlockFragment {
+    // public static final String ARG_PLANET_NUMBER = "planet_number";
+    //
+    // public PlanetFragment() {
+    // // Empty constructor required for fragment subclasses
+    // }
+    //
+    // @Override
+    // public View onCreateView(LayoutInflater inflater, ViewGroup container,
+    // Bundle savedInstanceState) {
+    // View rootView = inflater.inflate(R.layout.fragment_planet, container, false);
+    // int i = getArguments().getInt(ARG_PLANET_NUMBER);
+    // String planet = getResources().getStringArray(R.array.drawer_array)[i];
+    //
+    // int imageId = getResources().getIdentifier(planet.toLowerCase(Locale.getDefault()),
+    // "drawable", getActivity().getPackageName());
+    // ((ImageView) rootView.findViewById(R.id.image)).setImageResource(imageId);
+    // getActivity().setTitle(planet);
+    // return rootView;
+    // }
+    // }
+}
\ No newline at end of file
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/KeyActivity.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/KeyActivity.java
index 2760df97e..3766b1c42 100644
--- a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/KeyActivity.java
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/KeyActivity.java
@@ -45,8 +45,7 @@ import com.actionbarsherlock.app.SherlockFragmentActivity;
  * TODO: get key type by looking at dataUri!
  * 
  */
-public class KeyActivity extends SherlockFragmentActivity {
-
+public class KeyActivity extends DrawerActivity {
     protected FileDialogFragment mFileDialog;
     protected String mExportFilename;
 
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/KeyListPublicActivity.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/KeyListPublicActivity.java
index 023c8fd9d..476d3c96c 100644
--- a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/KeyListPublicActivity.java
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/KeyListPublicActivity.java
@@ -35,8 +35,8 @@ public class KeyListPublicActivity extends KeyActivity {
 
         setContentView(R.layout.key_list_public_activity);
 
-        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
-        getSupportActionBar().setHomeButtonEnabled(true);
+        // now setup navigation drawer in DrawerActivity...
+        setupDrawerNavigation(savedInstanceState);
     }
 
     @Override
@@ -49,13 +49,6 @@ public class KeyListPublicActivity extends KeyActivity {
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
-        case android.R.id.home:
-            // app icon in Action Bar clicked; go home
-            Intent intent = new Intent(this, MainActivity.class);
-            intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
-            startActivity(intent);
-
-            return true;
         case R.id.menu_key_list_public_import:
             Intent intentImportFromFile = new Intent(this, ImportKeysActivity.class);
             startActivityForResult(intentImportFromFile, Id.request.import_from_qr_code);
diff --git a/libraries/ActionBarSherlock/libs/android-support-v4.jar b/libraries/ActionBarSherlock/libs/android-support-v4.jar
index 99e063b33..9056828a0 100644
Binary files a/libraries/ActionBarSherlock/libs/android-support-v4.jar and b/libraries/ActionBarSherlock/libs/android-support-v4.jar differ
diff --git a/libraries/AndroidBootstrap/libs/android-support-v4.jar b/libraries/AndroidBootstrap/libs/android-support-v4.jar
index 99e063b33..9056828a0 100644
Binary files a/libraries/AndroidBootstrap/libs/android-support-v4.jar and b/libraries/AndroidBootstrap/libs/android-support-v4.jar differ