Add toolbar to Settings (involves reorganization of Settings into Fragmnt which removes duplicate code in both activities)

src/keepass2android/Resources/layout/preference.axml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+    <include
+        android:id="@+id/toolbar"
+        layout="@layout/toolbar" />
+    <fragment
+        android:name="keepass2android.SettingsFragment"
+        android:id="@+id/settings_fragment"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_below="@id/toolbar" />
+</RelativeLayout>

src/keepass2android/Resources/layout/toolbar.axml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:local="http://schemas.android.com/apk/res-auto"
+    android:id="@+id/toolbar"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:minHeight="?attr/actionBarSize"
+    android:background="?attr/colorPrimary"
+    local:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
+    local:popupTheme="@style/ThemeOverlay.AppCompat.Light" />

src/keepass2android/Resources/xml/preferences.xml

@@ -18,11 +18,15 @@
   along with Keepass2Android.  If not, see <http://www.gnu.org/licenses/>.
 -->
 <PreferenceScreen
-	xmlns:android="http://schemas.android.com/apk/res/android">
+	xmlns:android="http://schemas.android.com/apk/res/android"
+  android:key="mainprefs">
 	<PreferenceScreen
 	  android:key="@string/db_key"
 	  android:title="@string/database"
 	  android:summary="@string/menu_db_settings">
+    <keepass2android.ToolbarPreference
+    android:key="@string/db_key"
+    android:title="@string/database" />
 		<EditTextPreference
                 android:title="@string/database_name"
                 android:persistent="false"
@@ -72,11 +76,16 @@
 	  android:key="@string/app_key"
 	  android:title="@string/application"
 	  android:summary="@string/application_settings">
-
+    <keepass2android.ToolbarPreference
+        android:key="@string/app_key"
+        android:title="@string/application" />
 		<PreferenceScreen
 	  android:key="@string/security_prefs_key"
 	  android:title="@string/security_prefs"
 	  >
+      <keepass2android.ToolbarPreference
+    android:key="@string/security_prefs_key"
+	  android:title="@string/security_prefs" />
 
 			<ListPreference
 			  android:key="@string/clipboard_timeout_key"
@@ -142,6 +151,9 @@
 	  android:key="@string/display_prefs_key"
 	  android:title="@string/display_prefs"
 	  >
+      <keepass2android.ToolbarPreference
+    android:key="@string/display_prefs_key"
+	  android:title="@string/display_prefs" />
 			<CheckBoxPreference
 				android:enabled="true"
 					 android:persistent="true"
@@ -187,15 +199,6 @@
 					 android:title="@string/ViewDatabaseSecure_title"
 					 android:key="@string/ViewDatabaseSecure_key" />
 
-
-			<ListPreference
-			  android:key="@string/design_key"
-			  android:title="@string/design_title"
-			  android:entries="@array/design_options"
-			  android:entryValues="@array/design_values"
-			  android:dialogTitle="@string/design_title"
-			  android:defaultValue="@string/design_default"/>
-
 			<CheckBoxPreference
 				android:enabled="true"
 					 android:persistent="true"
@@ -209,6 +212,9 @@
 			  android:key="@string/password_access_prefs_key"
 			  android:title="@string/password_access_prefs"
 			  >
+      <keepass2android.ToolbarPreference
+    android:key="@string/password_access_prefs_key"
+			  android:title="@string/password_access_prefs" />
 			<CheckBoxPreference
 				android:enabled="true"
 				  android:persistent="true"
@@ -236,8 +242,10 @@
 				 android:key="@string/keyboardswitch_prefs_key"
 	  android:title="@string/keyboardswitch_prefs"
 				 			android:dependency="@string/UseKp2aKeyboard_key"
-
 	  >
+        <keepass2android.ToolbarPreference
+  android:key="@string/keyboardswitch_prefs_key"
+	  android:title="@string/keyboardswitch_prefs"/>
 				<CheckBoxPreference
 							android:key="kp2a_switch_rooted"
 							android:title="@string/kp2a_switch_rooted"
@@ -289,6 +297,9 @@
 			  android:key="@string/QuickUnlock_prefs_key"
 			  android:title="@string/QuickUnlock_prefs"
 			  >
+      <keepass2android.ToolbarPreference
+  android:key="@string/QuickUnlock_prefs_key"
+			  android:title="@string/QuickUnlock_prefs"/>
 			<CheckBoxPreference
 			android:enabled="true"
 				 android:persistent="true"
@@ -323,6 +334,9 @@
 	  android:key="@string/FileHandling_prefs_key"
 	  android:title="@string/FileHandling_prefs"
 		>
+      <keepass2android.ToolbarPreference
+  android:key="@string/FileHandling_prefs_key"
+	  android:title="@string/FileHandling_prefs"/>
 
 			<EditTextPreference
 				 android:enabled="true"
@@ -395,6 +409,9 @@
 	  android:key="@string/TrayTotp_prefs_key"
 	  android:title="@string/TrayTotp_prefs"
 		>
+      <keepass2android.ToolbarPreference
+        android:key="@string/TrayTotp_prefs_key"
+	  android:title="@string/TrayTotp_prefs"/>
       
 			<EditTextPreference
 				 android:enabled="true"

src/keepass2android/Utils/Util.cs

@@ -432,37 +432,6 @@ namespace keepass2android
 			activity.Finish();
 		}
 
-		public static void PrepareNoDonatePreference(Context ctx, Preference preference)
-		{
-			ISharedPreferences prefs = PreferenceManager.GetDefaultSharedPreferences(ctx);
-
-			long usageCount = prefs.GetLong(ctx.GetString(Resource.String.UsageCount_key), 0);
-
-#if DEBUG
-			preference.Enabled = (usageCount > 1);
-#else 
-			preference.Enabled = (usageCount > 50);
-#endif
-			preference.PreferenceChange += delegate(object sender, Preference.PreferenceChangeEventArgs args)
-				{
-					if ((bool) args.NewValue)
-					{
-						new AlertDialog.Builder(ctx)
-							.SetTitle(ctx.GetString(AppNames.AppNameResource))
-							.SetCancelable(false)
-							.SetPositiveButton(Android.Resource.String.Ok, delegate(object o, DialogClickEventArgs eventArgs)
-								{
-									GotoDonateUrl(ctx);
-									((Dialog) o).Dismiss();
-								})
-							.SetMessage(Resource.String.NoDonateOption_question)
-							.Create().Show();
-
-					}
-				};
-		
-		}
-
         public static void PrepareDonateOptionMenu(IMenu menu, Context ctx)
         {
             var donateItem = menu.FindItem(Resource.Id.menu_donate);
@@ -474,6 +443,8 @@ namespace keepass2android
                     );
             }
         }
+
+		
 	}
 }
 

src/keepass2android/keepass2android.csproj

@@ -264,6 +264,12 @@
     <AndroidResource Include="Resources\layout\EntryEditButtonDelete.axml">
       <SubType>AndroidResource</SubType>
     </AndroidResource>
+    <AndroidResource Include="Resources\layout\preference.axml">
+      <SubType>AndroidResource</SubType>
+    </AndroidResource>
+    <AndroidResource Include="Resources\layout\toolbar.axml">
+      <SubType>AndroidResource</SubType>
+    </AndroidResource>
     <None Include="settings\RoundsPreference %28Kopie%29.cs">
       <Visible>False</Visible>
     </None>
@@ -1310,4 +1316,19 @@
   <ItemGroup>
     <AndroidResource Include="Resources\drawable-xhdpi\ic_nav_about.png" />
   </ItemGroup>
+  <ItemGroup>
+    <AndroidResource Include="Resources\drawable-mhdpi\ic_arrow_back_white_24dp.png" />
+  </ItemGroup>
+  <ItemGroup>
+    <AndroidResource Include="Resources\drawable-hdpi\ic_arrow_back_white_24dp.png" />
+  </ItemGroup>
+  <ItemGroup>
+    <AndroidResource Include="Resources\drawable-xhdpi\ic_arrow_back_white_24dp.png" />
+  </ItemGroup>
+  <ItemGroup>
+    <AndroidResource Include="Resources\drawable-xxhdpi\ic_arrow_back_white_24dp.png" />
+  </ItemGroup>
+  <ItemGroup>
+    <AndroidResource Include="Resources\drawable-xxxhdpi\ic_arrow_back_white_24dp.png" />
+  </ItemGroup>
 </Project>

src/keepass2android/settings/AppSettingsActivity.cs

@@ -21,19 +21,69 @@ using Android.App;
 using Android.Content;
 using Android.OS;
 using Android.Preferences;
+using Android.Runtime;
+using Android.Util;
+using Android.Views;
 using Android.Widget;
 using keepass2android.Io;
+using Toolbar = Android.Support.V7.Widget.Toolbar;
 
 namespace keepass2android
 {
+    public class ToolbarPreference : Preference
+    {
+        #region constructors
+        protected ToolbarPreference(IntPtr javaReference, JniHandleOwnership transfer) : base(javaReference, transfer)
+        {
+        }
+
+        public ToolbarPreference(Context context) : base(context)
+        {
+        }
+
+        public ToolbarPreference(Context context, IAttributeSet attrs) : base(context, attrs)
+        {
+        }
+
+        public ToolbarPreference(Context context, IAttributeSet attrs, int defStyleAttr) : base(context, attrs, defStyleAttr)
+        {
+        }
+
+        public ToolbarPreference(Context context, IAttributeSet attrs, int defStyleAttr, int defStyleRes) : base(context, attrs, defStyleAttr, defStyleRes)
+        {
+        }
+#endregion
+
+        protected override View OnCreateView(ViewGroup parent)
+        {
+            parent.SetPadding(0, 0, 0, 0);
+
+    LayoutInflater inflater = (LayoutInflater) Context.GetSystemService(Context.LayoutInflaterService);
+    View layout = inflater.Inflate(Resource.Layout.toolbar, parent, false);
+
+    Toolbar toolbar = (Toolbar) layout.FindViewById<Toolbar>(Resource.Id.toolbar);
+    toolbar.SetNavigationIcon(Resource.Drawable.ic_arrow_back_white_24dp);
+    toolbar.Title = Title;
+            toolbar.NavigationClick += (sender, args) =>
+            {
+                PreferenceScreen prefScreen = (PreferenceScreen) PreferenceManager.FindPreference(Key);
+                if (prefScreen == null)
+                    throw new Exception("didn't find preference " + Key);
+                prefScreen.Dialog.Dismiss();
+            };
+
+    return layout;
+            
+        }
+    }
+
 	/// <summary>
 	/// Activity to configure the application, without database settings. Does not require an unlocked database, or close when the database is locked
 	/// </summary>
-    [Activity(Label = "@string/app_name", Theme = "@style/MyTheme_ActionBar")]			
+    [Activity(Label = "@string/app_name", Theme = "@style/MyTheme")]			
-	public class AppSettingsActivity : LockingPreferenceActivity
+	public class AppSettingsActivity : LockingActivity
 	{
 		private ActivityDesign _design;
-		private KeyboardSwitchPrefManager _switchPrefManager;
 		
 		public AppSettingsActivity()
 		{
@@ -47,223 +97,16 @@ namespace keepass2android
 
 		protected override void OnCreate(Bundle savedInstanceState) 
 		{
-			_design.ApplyTheme();
 			base.OnCreate(savedInstanceState);
 			
+			SetContentView(Resource.Layout.preference);
 
-			AddPreferencesFromResource(Resource.Xml.preferences);
+		    SetSupportActionBar(FindViewById<Android.Support.V7.Widget.Toolbar>(Resource.Id.toolbar));
 
-			FindPreference(GetString(Resource.String.keyfile_key)).PreferenceChange += OnRememberKeyFileHistoryChanged;
+            FragmentManager.FindFragmentById<SettingsFragment>(Resource.Id.settings_fragment).FindPreference(GetString(Resource.String.db_key)).Enabled = false;
-			Preference designPref = FindPreference(GetString(Resource.String.design_key));
-			if (!_design.HasThemes())
-			{
-				try
-				{
-					((PreferenceScreen)FindPreference(GetString(Resource.String.display_prefs_key))).RemovePreference(designPref);
-				}
-				catch (Exception ex)
-				{
-					Kp2aLog.Log(ex.ToString());
-					throw;
-				}
-			}
-			else
-			{
-				designPref.PreferenceChange += (sender, args) => Recreate();
-			}
-
-			Util.PrepareNoDonatePreference(this, FindPreference(GetString(Resource.String.NoDonateOption_key)));
-			
-			Preference cachingPreference = FindPreference(GetString(Resource.String.UseOfflineCache_key));
-			cachingPreference.PreferenceChange += OnUseOfflineCacheChanged;
-
-#if NoNet
-			try
-			{
-				((PreferenceScreen) FindPreference(GetString(Resource.String.FileHandling_prefs_key))).RemovePreference(cachingPreference);
-			}
-			catch (Exception ex)
-			{
-				Kp2aLog.Log(ex.ToString());	
-			}
-#endif
-			try
-			{
-				//depending on Android version, we offer to use a transparent icon for QuickUnlock or use the notification priority (since API level 16)
-				Preference hideQuickUnlockTranspIconPref = FindPreference(GetString(Resource.String.QuickUnlockIconHidden_key));
-				Preference hideQuickUnlockIconPref = FindPreference(GetString(Resource.String.QuickUnlockIconHidden16_key));
-				var quickUnlockScreen = ((PreferenceScreen) FindPreference(GetString(Resource.String.QuickUnlock_prefs_key)));
-				if ((int) Android.OS.Build.VERSION.SdkInt >= 16)
-				{
-					quickUnlockScreen.RemovePreference(hideQuickUnlockTranspIconPref);
-					FindPreference(GetString(Resource.String.ShowUnlockedNotification_key)).PreferenceChange += (sender, args) => App.Kp2a.UpdateOngoingNotification();
-					hideQuickUnlockIconPref.PreferenceChange += OnQuickUnlockHiddenChanged;
-				}
-				else
-				{
-					//old version: only show transparent quickUnlock and no option to hide unlocked icon:
-					quickUnlockScreen.RemovePreference(hideQuickUnlockIconPref);
-					FindPreference(GetString(Resource.String.QuickUnlockIconHidden_key)).PreferenceChange +=
-						delegate { App.Kp2a.UpdateOngoingNotification(); };
-					((PreferenceScreen) FindPreference(GetString(Resource.String.display_prefs_key))).RemovePreference(
-						FindPreference(GetString(Resource.String.ShowUnlockedNotification_key)));
-				}
-			}
-			catch (Exception ex)
-			{
-				Kp2aLog.Log(ex.ToString());
-			}
-
-			FindPreference(GetString(Resource.String.db_key)).Enabled = false;
-			_switchPrefManager = new KeyboardSwitchPrefManager(this);
-
-			PrepareSeparateNotificationsPreference(this);
 			
 		}
 
-		public static void PrepareSeparateNotificationsPreference(PreferenceActivity preferenceActivity)
-		{
-			try
-			{
-				//depending on Android version, we offer to show a combined notification (with action buttons) (since API level 16)
-				Preference separateNotificationsPref = preferenceActivity.FindPreference(preferenceActivity.GetString(Resource.String.ShowSeparateNotifications_key));
-				var passwordAccessScreen = ((PreferenceScreen)preferenceActivity.FindPreference(preferenceActivity.GetString(Resource.String.password_access_prefs_key)));
-				if ((int)Build.VERSION.SdkInt < 16)
-				{
-					passwordAccessScreen.RemovePreference(separateNotificationsPref);
-				}
-			}
-			catch (Exception ex)
-			{
-				Kp2aLog.Log(ex.ToString());
-			}
-		}
-
-		public class KeyboardSwitchPrefManager
-		{
-			private readonly PreferenceActivity _act;
-			private CheckBoxPreference _switchPref;
-			private CheckBoxPreference _openKp2aAutoPref;
-			private CheckBoxPreference _openOnlyOnSearchPref;
-			private CheckBoxPreference _switchBackPref;
-			private PreferenceScreen _screen;
-
-			public KeyboardSwitchPrefManager(PreferenceActivity act)
-			{
-				this._act = act;
-
-				_switchPref = (CheckBoxPreference)_act.FindPreference("kp2a_switch_rooted");
-				_openKp2aAutoPref =
-					(CheckBoxPreference)act.FindPreference(act.GetString(Resource.String.OpenKp2aKeyboardAutomatically_key));
-				_openOnlyOnSearchPref =
-					(CheckBoxPreference)
-					act.FindPreference(act.GetString(Resource.String.OpenKp2aKeyboardAutomaticallyOnlyAfterSearch_key));
-				_switchBackPref =
-					(CheckBoxPreference)act.FindPreference(act.GetString(Resource.String.AutoSwitchBackKeyboard_key));
-				_screen = (PreferenceScreen)act.FindPreference(act.GetString(Resource.String.keyboardswitch_prefs_key));
-				EnableSwitchPreferences(_switchPref.Checked);
-				
-				_switchPref.PreferenceChange += (sender, args) =>
-				{
-					bool switchOnRooted = (bool)args.NewValue;
-					EnableSwitchPreferences(switchOnRooted);
-				};
-			}
-
-
-			private void EnableSwitchPreferences(bool switchOnRooted)
-			{
-				if (!switchOnRooted)
-				{
-					if (_act.FindPreference(_act.GetString(Resource.String.OpenKp2aKeyboardAutomatically_key)) == null)
-					{
-						_screen.AddPreference(_openKp2aAutoPref);
-					}
-					if (_act.FindPreference(_act.GetString(Resource.String.OpenKp2aKeyboardAutomaticallyOnlyAfterSearch_key)) != null)
-					{
-						_screen.RemovePreference(_openOnlyOnSearchPref);
-					}
-				}
-				else
-				{
-					if (_act.FindPreference(_act.GetString(Resource.String.OpenKp2aKeyboardAutomatically_key)) != null)
-					{
-						_screen.RemovePreference(_openKp2aAutoPref);
-					}
-					if (_act.FindPreference(_act.GetString(Resource.String.OpenKp2aKeyboardAutomaticallyOnlyAfterSearch_key)) == null)
-					{
-						_screen.AddPreference(_openOnlyOnSearchPref);
-					}
-				}
-				/*_openKp2aAutoPref.Enabled = !switchOnRooted;
-
-				_openOnlyOnSearchPref.Enabled = switchOnRooted;
-
-				_switchBackPref.Enabled = switchOnRooted;*/
-			}
-		}
-
-		private void OnDesignChange(object sender, Preference.PreferenceChangeEventArgs preferenceChangeEventArgs)
-		{
-			Recreate();
-		}
-
-		private void OnQuickUnlockHiddenChanged(object sender, Preference.PreferenceChangeEventArgs e)
-		{
-			App.Kp2a.UpdateOngoingNotification();
-		}
-
-		private void OnUseOfflineCacheChanged(object sender, Preference.PreferenceChangeEventArgs e)
-		{
-			//ensure the user gets a matching database
-			if (App.Kp2a.GetDb().Loaded && !App.Kp2a.GetDb().Ioc.IsLocalFile())
-				App.Kp2a.LockDatabase(false);
-
-			if (!(bool)e.NewValue)
-			{
-				AlertDialog.Builder builder = new AlertDialog.Builder(this);
-				builder.SetTitle(GetString(Resource.String.ClearOfflineCache_title));
-
-				builder.SetMessage(GetString(Resource.String.ClearOfflineCache_question));
-
-				builder.SetPositiveButton(App.Kp2a.GetResourceString(UiStringKey.yes), (o, args) =>
-					 {
-						 try
-						 {
-							 App.Kp2a.ClearOfflineCache();
-						 }
-						 catch (Exception ex)
-						 {
-							 Kp2aLog.Log(ex.ToString());
-							 Toast.MakeText(Application.Context, ex.Message, ToastLength.Long).Show();
-						 }
-					 }
-					);
-
-				builder.SetNegativeButton(App.Kp2a.GetResourceString(UiStringKey.no), (o, args) =>
-				{
-				}
-				);
-				builder.SetCancelable(false);
-				Dialog dialog = builder.Create();
-				dialog.Show();
-
-				
-			}
-		}
-
-		internal static void OnRememberKeyFileHistoryChanged(object sender, Preference.PreferenceChangeEventArgs eventArgs)
-		{
-			if (!(bool)eventArgs.NewValue)
-			{
-				App.Kp2a.FileDbHelper.DeleteAllKeys();
-			}
-		}
-
-		internal static void OnShowUnlockedNotificationChanged(object sender, Preference.PreferenceChangeEventArgs eventArgs)
-		{
-			App.Kp2a.UpdateOngoingNotification();
-		}
 	}
 
 }

src/keepass2android/settings/DatabaseSettingsActivity.cs

@@ -22,6 +22,7 @@ using Android.Content;
 using Android.OS;
 using Android.Widget;
 using Android.Preferences;
+using Android.Views;
 using Java.IO;
 using KeePassLib.Cryptography.Cipher;
 using KeePassLib.Keys;
@@ -32,135 +33,119 @@ using keepass2android.Utils;
 
 namespace keepass2android
 {
-	/// <summary>
+    //http://stackoverflow.com/a/27422401/292233
-	/// Activity to configure the application and database settings. The database must be unlocked, and this activity will close if it becomes locked.
+    public class SettingsFragment : PreferenceFragment
-	/// </summary>
-    [Activity(Label = "@string/app_name", Theme = "@style/MyTheme_ActionBar")]			
-	public class DatabaseSettingsActivity : LockingClosePreferenceActivity 
     {
-		private ActivityDesign _design;
-		private AppSettingsActivity.KeyboardSwitchPrefManager _switchPrefManager;
 
-		public DatabaseSettingsActivity()
+        public class KeyboardSwitchPrefManager
         {
-			_design = new ActivityDesign(this);
+            private readonly Activity _act;
+            private CheckBoxPreference _switchPref;
+            private CheckBoxPreference _openKp2aAutoPref;
+            private CheckBoxPreference _openOnlyOnSearchPref;
+            private CheckBoxPreference _switchBackPref;
+            private PreferenceScreen _screen;
+            private PreferenceFragment _fragment;
+
+            public KeyboardSwitchPrefManager(PreferenceFragment fragment)
+            {
+                var act = fragment.Activity;
+                this._act = act;
+                this._fragment = fragment;
+
+                _switchPref = (CheckBoxPreference)_fragment.FindPreference("kp2a_switch_rooted");
+                _openKp2aAutoPref =
+                    (CheckBoxPreference)_fragment.FindPreference(act.GetString(Resource.String.OpenKp2aKeyboardAutomatically_key));
+                _openOnlyOnSearchPref =
+                    (CheckBoxPreference)
+                    _fragment.FindPreference(act.GetString(Resource.String.OpenKp2aKeyboardAutomaticallyOnlyAfterSearch_key));
+                _switchBackPref =
+                    (CheckBoxPreference)_fragment.FindPreference(act.GetString(Resource.String.AutoSwitchBackKeyboard_key));
+                _screen = (PreferenceScreen)_fragment.FindPreference(act.GetString(Resource.String.keyboardswitch_prefs_key));
+                EnableSwitchPreferences(_switchPref.Checked);
+
+                _switchPref.PreferenceChange += (sender, args) =>
+                {
+                    bool switchOnRooted = (bool)args.NewValue;
+                    EnableSwitchPreferences(switchOnRooted);
+                };
             }
 
-		public static void Launch(Activity ctx)
+
+            private void EnableSwitchPreferences(bool switchOnRooted)
             {
-			ctx.StartActivity(new Intent(ctx, typeof(DatabaseSettingsActivity)));
+                if (!switchOnRooted)
+                {
+                    if (_fragment.FindPreference(_act.GetString(Resource.String.OpenKp2aKeyboardAutomatically_key)) == null)
+                    {
+                        _screen.AddPreference(_openKp2aAutoPref);
+                    }
+                    if (_fragment.FindPreference(_act.GetString(Resource.String.OpenKp2aKeyboardAutomaticallyOnlyAfterSearch_key)) != null)
+                    {
+                        _screen.RemovePreference(_openOnlyOnSearchPref);
+                    }
+                }
+                else
+                {
+                    {
+                        _screen.RemovePreference(_openKp2aAutoPref);
+                    }
+                    if (_fragment.FindPreference(_act.GetString(Resource.String.OpenKp2aKeyboardAutomaticallyOnlyAfterSearch_key)) == null)
+                    {
+                        _screen.AddPreference(_openOnlyOnSearchPref);
+                    }
+                }
+                /*_openKp2aAutoPref.Enabled = !switchOnRooted;
+
+                _openOnlyOnSearchPref.Enabled = switchOnRooted;
+
+                _switchBackPref.Enabled = switchOnRooted;*/
+            }
         }
 
-		protected override void OnCreate(Bundle savedInstanceState) 
+        private KeyboardSwitchPrefManager _switchPrefManager;
-		{
-			_design.ApplyTheme();
 
+        void OnRememberKeyFileHistoryChanged(object sender, Preference.PreferenceChangeEventArgs eventArgs)
+        {
+            if (!(bool)eventArgs.NewValue)
+            {
+                App.Kp2a.FileDbHelper.DeleteAllKeys();
+            }
+        }
+
+        void OnShowUnlockedNotificationChanged(object sender, Preference.PreferenceChangeEventArgs eventArgs)
+        {
+            App.Kp2a.UpdateOngoingNotification();
+        }
+
+
+        public override void OnCreate(Bundle savedInstanceState)
+        {
             base.OnCreate(savedInstanceState);
-			
             AddPreferencesFromResource(Resource.Xml.preferences);
 
             // Re-use the change handlers for the application settings
-			FindPreference(GetString(Resource.String.keyfile_key)).PreferenceChange += AppSettingsActivity.OnRememberKeyFileHistoryChanged;
+            FindPreference(GetString(Resource.String.keyfile_key)).PreferenceChange += OnRememberKeyFileHistoryChanged;
-			FindPreference(GetString(Resource.String.ShowUnlockedNotification_key)).PreferenceChange += AppSettingsActivity.OnShowUnlockedNotificationChanged;
+            FindPreference(GetString(Resource.String.ShowUnlockedNotification_key)).PreferenceChange += OnShowUnlockedNotificationChanged;
-			Util.PrepareNoDonatePreference(this, FindPreference(GetString(Resource.String.NoDonateOption_key)));
+            PrepareNoDonatePreference(Activity, FindPreference(GetString(Resource.String.NoDonateOption_key)));
-			Preference designPref = FindPreference(GetString(Resource.String.design_key));
-			if (!_design.HasThemes())
-			{
-				try
-				{
-					((PreferenceScreen)FindPreference(GetString(Resource.String.display_prefs_key))).RemovePreference(designPref);
-				}
-				catch (Exception ex)
-				{
-					Kp2aLog.Log(ex.ToString());
-					throw;
-				}
-			}
-			else
-			{
-				designPref.PreferenceChange += (sender, args) => Recreate();
-			}
-			
             
             Database db = App.Kp2a.GetDb();
-			
+            if (db.Loaded)
+            {
                 Preference rounds = FindPreference(GetString(Resource.String.rounds_key));
                 rounds.PreferenceChange += (sender, e) => SetRounds(db, e.Preference);
                 rounds.Enabled = db.CanWrite;
+                SetRounds(db, rounds);
 
-			Preference defaultUser = FindPreference(GetString(Resource.String.default_username_key));
+                PrepareDefaultUsername(db);
-			if (!db.DatabaseFormat.HasDefaultUsername)
+                PrepareDatabaseName(db);
-			{
+                PrepareMasterPassword();
-				((PreferenceScreen) FindPreference(GetString(Resource.String.db_key))).RemovePreference(defaultUser);
-			}
-			else
-			{
-				defaultUser.Enabled = db.CanWrite;
-				((EditTextPreference)defaultUser).EditText.Text = db.KpDatabase.DefaultUserName;
-				((EditTextPreference)defaultUser).Text = db.KpDatabase.DefaultUserName;
-				defaultUser.PreferenceChange += (sender, e) =>
-				{
-					DateTime previousUsernameChanged = db.KpDatabase.DefaultUserNameChanged;
-					String previousUsername = db.KpDatabase.DefaultUserName;
-					db.KpDatabase.DefaultUserName = e.NewValue.ToString();
                 
-					SaveDb save = new SaveDb(this, App.Kp2a, new ActionOnFinish((success, message) =>
+                Preference algorithm = FindPreference(GetString(Resource.String.algorithm_key));
-					{
+                SetAlgorithm(db, algorithm);
-						if (!success)
-						{
-							db.KpDatabase.DefaultUserName = previousUsername;
-							db.KpDatabase.DefaultUserNameChanged = previousUsernameChanged;
-							Toast.MakeText(this, message, ToastLength.Long).Show();
-						}
-					}));
-					ProgressTask pt = new ProgressTask(App.Kp2a, this, save);
-					pt.Run();
-				};
 
-			}
+                UpdateImportDbPref();
-			
+                UpdateImportKeyfilePref();
-			
-			Preference databaseName = FindPreference(GetString(Resource.String.database_name_key));
-			if (!db.DatabaseFormat.HasDatabaseName)
-			{
-				((PreferenceScreen) FindPreference(GetString(Resource.String.db_key))).RemovePreference(databaseName);
-			}
-			else
-			{
-				databaseName.Enabled = db.CanWrite;
-				((EditTextPreference) databaseName).EditText.Text = db.KpDatabase.Name;
-				((EditTextPreference) databaseName).Text = db.KpDatabase.Name;
-				databaseName.PreferenceChange += (sender, e) =>
-					{
-						DateTime previousNameChanged = db.KpDatabase.NameChanged;
-						String previousName = db.KpDatabase.Name;
-						db.KpDatabase.Name = e.NewValue.ToString();
-
-						SaveDb save = new SaveDb(this, App.Kp2a, new ActionOnFinish((success, message) =>
-							{
-								if (!success)
-								{
-									db.KpDatabase.Name = previousName;
-									db.KpDatabase.NameChanged = previousNameChanged;
-									Toast.MakeText(this, message, ToastLength.Long).Show();
-								}
-								else
-								{
-									// Name is reflected in notification, so update it
-									App.Kp2a.UpdateOngoingNotification();
-								}
-							}));
-						ProgressTask pt = new ProgressTask(App.Kp2a, this, save);
-						pt.Run();
-					};
-			}
-			Preference changeMaster = FindPreference(GetString(Resource.String.master_pwd_key));
-			if (App.Kp2a.GetDb().CanWrite)
-			{
-				changeMaster.Enabled = true;
-				changeMaster.PreferenceClick += delegate {
-						new SetPasswordDialog(this).Show();
-					};
             }
 
             try
@@ -191,21 +176,205 @@ namespace keepass2android
                 Kp2aLog.Log(ex.ToString());
             }
 
-			SetRounds(db, rounds);
             
-			Preference algorithm = FindPreference(GetString(Resource.String.algorithm_key));
-			SetAlgorithm(db, algorithm);
 
-			UpdateImportDbPref();
-			UpdateImportKeyfilePref();
             //AppSettingsActivity.PrepareKeyboardSwitchingPreferences(this);
-			_switchPrefManager = new AppSettingsActivity.KeyboardSwitchPrefManager(this);
+            _switchPrefManager = new KeyboardSwitchPrefManager(this);
-			AppSettingsActivity.PrepareSeparateNotificationsPreference(this);
+            PrepareSeparateNotificationsPreference();
+
+            Preference cachingPreference = FindPreference(GetString(Resource.String.UseOfflineCache_key));
+            cachingPreference.PreferenceChange += OnUseOfflineCacheChanged;
+
+#if NoNet
+			try
+			{
+				((PreferenceScreen) FindPreference(GetString(Resource.String.FileHandling_prefs_key))).RemovePreference(cachingPreference);
+			}
+			catch (Exception ex)
+			{
+				Kp2aLog.Log(ex.ToString());	
+			}
+#endif
+
+            try
+            {
+                //depending on Android version, we offer to use a transparent icon for QuickUnlock or use the notification priority (since API level 16)
+                Preference hideQuickUnlockTranspIconPref = FindPreference(GetString(Resource.String.QuickUnlockIconHidden_key));
+                Preference hideQuickUnlockIconPref = FindPreference(GetString(Resource.String.QuickUnlockIconHidden16_key));
+                var quickUnlockScreen = ((PreferenceScreen)FindPreference(GetString(Resource.String.QuickUnlock_prefs_key)));
+                if ((int)Android.OS.Build.VERSION.SdkInt >= 16)
+                {
+                    quickUnlockScreen.RemovePreference(hideQuickUnlockTranspIconPref);
+                    FindPreference(GetString(Resource.String.ShowUnlockedNotification_key)).PreferenceChange += (sender, args) => App.Kp2a.UpdateOngoingNotification();
+                    hideQuickUnlockIconPref.PreferenceChange += OnQuickUnlockHiddenChanged;
+                }
+                else
+                {
+                    //old version: only show transparent quickUnlock and no option to hide unlocked icon:
+                    quickUnlockScreen.RemovePreference(hideQuickUnlockIconPref);
+                    FindPreference(GetString(Resource.String.QuickUnlockIconHidden_key)).PreferenceChange +=
+                        delegate { App.Kp2a.UpdateOngoingNotification(); };
+                    ((PreferenceScreen)FindPreference(GetString(Resource.String.display_prefs_key))).RemovePreference(
+                        FindPreference(GetString(Resource.String.ShowUnlockedNotification_key)));
+                }
+            }
+            catch (Exception ex)
+            {
+                Kp2aLog.Log(ex.ToString());
+            }
+
+            
+			
+        }
+
+        private void PrepareMasterPassword()
+        {
+            Preference changeMaster = FindPreference(GetString(Resource.String.master_pwd_key));
+            if (App.Kp2a.GetDb().CanWrite)
+            {
+                changeMaster.Enabled = true;
+                changeMaster.PreferenceClick += delegate { new SetPasswordDialog(Activity).Show(); };
+            }
+        }
+
+        private void PrepareDatabaseName(Database db)
+        {
+            Preference databaseName = FindPreference(GetString(Resource.String.database_name_key));
+            if (!db.DatabaseFormat.HasDatabaseName)
+            {
+                ((PreferenceScreen) FindPreference(GetString(Resource.String.db_key))).RemovePreference(databaseName);
+            }
+            else
+            {
+                databaseName.Enabled = db.CanWrite;
+                ((EditTextPreference) databaseName).EditText.Text = db.KpDatabase.Name;
+                ((EditTextPreference) databaseName).Text = db.KpDatabase.Name;
+                databaseName.PreferenceChange += (sender, e) =>
+                {
+                    DateTime previousNameChanged = db.KpDatabase.NameChanged;
+                    String previousName = db.KpDatabase.Name;
+                    db.KpDatabase.Name = e.NewValue.ToString();
+
+                    SaveDb save = new SaveDb(Activity, App.Kp2a, new ActionOnFinish((success, message) =>
+                    {
+                        if (!success)
+                        {
+                            db.KpDatabase.Name = previousName;
+                            db.KpDatabase.NameChanged = previousNameChanged;
+                            Toast.MakeText(Activity, message, ToastLength.Long).Show();
+                        }
+                        else
+                        {
+                            // Name is reflected in notification, so update it
+                            App.Kp2a.UpdateOngoingNotification();
+                        }
+                    }));
+                    ProgressTask pt = new ProgressTask(App.Kp2a, Activity, save);
+                    pt.Run();
+                };
+            }
+        }
+
+        private void PrepareDefaultUsername(Database db)
+        {
+            Preference defaultUser = FindPreference(GetString(Resource.String.default_username_key));
+            if (!db.DatabaseFormat.HasDefaultUsername)
+            {
+                ((PreferenceScreen) FindPreference(GetString(Resource.String.db_key))).RemovePreference(defaultUser);
+            }
+            else
+            {
+                defaultUser.Enabled = db.CanWrite;
+                ((EditTextPreference) defaultUser).EditText.Text = db.KpDatabase.DefaultUserName;
+                ((EditTextPreference) defaultUser).Text = db.KpDatabase.DefaultUserName;
+                defaultUser.PreferenceChange += (sender, e) =>
+                {
+                    DateTime previousUsernameChanged = db.KpDatabase.DefaultUserNameChanged;
+                    String previousUsername = db.KpDatabase.DefaultUserName;
+                    db.KpDatabase.DefaultUserName = e.NewValue.ToString();
+
+                    SaveDb save = new SaveDb(Activity, App.Kp2a, new ActionOnFinish((success, message) =>
+                    {
+                        if (!success)
+                        {
+                            db.KpDatabase.DefaultUserName = previousUsername;
+                            db.KpDatabase.DefaultUserNameChanged = previousUsernameChanged;
+                            Toast.MakeText(Activity, message, ToastLength.Long).Show();
+                        }
+                    }));
+                    ProgressTask pt = new ProgressTask(App.Kp2a, Activity, save);
+                    pt.Run();
+                };
+            }
+        }
+
+        public void PrepareSeparateNotificationsPreference()
+        {
+            try
+            {
+                //depending on Android version, we offer to show a combined notification (with action buttons) (since API level 16)
+                Preference separateNotificationsPref = FindPreference(Activity.GetString(Resource.String.ShowSeparateNotifications_key));
+                var passwordAccessScreen = ((PreferenceScreen)FindPreference(Activity.GetString(Resource.String.password_access_prefs_key)));
+                if ((int)Build.VERSION.SdkInt < 16)
+                {
+                    passwordAccessScreen.RemovePreference(separateNotificationsPref);
+                }
+            }
+            catch (Exception ex)
+            {
+                Kp2aLog.Log(ex.ToString());
+            }
+        }
+
+
+
+        private void OnQuickUnlockHiddenChanged(object sender, Preference.PreferenceChangeEventArgs e)
+        {
+            App.Kp2a.UpdateOngoingNotification();
+        }
+
+        private void OnUseOfflineCacheChanged(object sender, Preference.PreferenceChangeEventArgs e)
+        {
+            //ensure the user gets a matching database
+            if (App.Kp2a.GetDb().Loaded && !App.Kp2a.GetDb().Ioc.IsLocalFile())
+                App.Kp2a.LockDatabase(false);
+
+            if (!(bool)e.NewValue)
+            {
+                AlertDialog.Builder builder = new AlertDialog.Builder(Activity);
+                builder.SetTitle(GetString(Resource.String.ClearOfflineCache_title));
+
+                builder.SetMessage(GetString(Resource.String.ClearOfflineCache_question));
+
+                builder.SetPositiveButton(App.Kp2a.GetResourceString(UiStringKey.yes), (o, args) =>
+                {
+                    try
+                    {
+                        App.Kp2a.ClearOfflineCache();
+                    }
+                    catch (Exception ex)
+                    {
+                        Kp2aLog.Log(ex.ToString());
+                        Toast.MakeText(Application.Context, ex.Message, ToastLength.Long).Show();
+                    }
+                }
+                    );
+
+                builder.SetNegativeButton(App.Kp2a.GetResourceString(UiStringKey.no), (o, args) =>
+                {
+                }
+                );
+                builder.SetCancelable(false);
+                Dialog dialog = builder.Create();
+                dialog.Show();
+
+
+            }
         }
 
         private void UpdateImportKeyfilePref()
         {
-			var prefs = PreferenceManager.GetDefaultSharedPreferences(this);
+            var prefs = PreferenceManager.GetDefaultSharedPreferences(Activity);
             var rememberKeyfile = prefs.GetBoolean(GetString(Resource.String.keyfile_key), Resources.GetBoolean(Resource.Boolean.keyfile_default));
 
             Preference importDb = FindPreference("import_keyfile_prefs");
@@ -221,7 +390,7 @@ namespace keepass2android
             if (masterKey.ContainsType(typeof(KcpKeyFile)))
             {
                 IOConnectionInfo iocKeyfile = ((KcpKeyFile)masterKey.GetUserKey(typeof(KcpKeyFile))).Ioc;
-				if (iocKeyfile.IsLocalFile() && IoUtil.IsInInternalDirectory(iocKeyfile.Path, this))
+                if (iocKeyfile.IsLocalFile() && IoUtil.IsInInternalDirectory(iocKeyfile.Path, Activity))
                 {
                     importDb.Enabled = false;
                     importDb.Summary = GetString(Resource.String.FileIsInInternalDirectory);
@@ -255,7 +424,7 @@ namespace keepass2android
                     return () =>
                     {
                         UpdateImportKeyfilePref();
-						var builder = new AlertDialog.Builder(this);
+                        var builder = new AlertDialog.Builder(Activity);
                         builder
                             .SetMessage(Resource.String.KeyfileMoved);
                         builder.SetPositiveButton(Android.Resource.String.Ok, (sender, args) => { });
@@ -271,7 +440,7 @@ namespace keepass2android
                 {
                     return () =>
                     {
-						Toast.MakeText(this, App.Kp2a.GetResourceString(UiStringKey.ErrorOcurred) + " " + e.Message, ToastLength.Long).Show();
+                        Toast.MakeText(Activity, App.Kp2a.GetResourceString(UiStringKey.ErrorOcurred) + " " + e.Message, ToastLength.Long).Show();
                     };
                 }
 
@@ -279,7 +448,7 @@ namespace keepass2android
 
             };
 
-			new SimpleLoadingDialog(this, GetString(Resource.String.CopyingFile), false,
+            new SimpleLoadingDialog(Activity, GetString(Resource.String.CopyingFile), false,
                                   copyAndReturnPostExecute
                 ).Execute();
 
@@ -295,7 +464,7 @@ namespace keepass2android
             }
             else
             {
-				if (IoUtil.IsInInternalDirectory(App.Kp2a.GetDb().Ioc.Path, this))
+                if (IoUtil.IsInInternalDirectory(App.Kp2a.GetDb().Ioc.Path, Activity))
                 {
                     importDb.Summary = GetString(Resource.String.FileIsInInternalDirectory);
                     importDb.Enabled = false;
@@ -318,11 +487,11 @@ namespace keepass2android
                     var newIoc = ImportFileToInternalDirectory(sourceIoc);
                     return () =>
                     {
-								var builder = new AlertDialog.Builder(this);
+                        var builder = new AlertDialog.Builder(Activity);
                         builder
                             .SetMessage(Resource.String.DatabaseFileMoved);
                         builder.SetPositiveButton(Android.Resource.String.Ok, (sender, args) =>
-								                                                      PasswordActivity.Launch(this, newIoc, new NullTask()));
+                                                                              PasswordActivity.Launch(Activity, newIoc, new NullTask()));
                         builder.Show();
 
                     };
@@ -335,7 +504,7 @@ namespace keepass2android
                 {
                     return () =>
                     {
-								Toast.MakeText(this, App.Kp2a.GetResourceString(UiStringKey.ErrorOcurred) + " " + e.Message, ToastLength.Long).Show();
+                        Toast.MakeText(Activity, App.Kp2a.GetResourceString(UiStringKey.ErrorOcurred) + " " + e.Message, ToastLength.Long).Show();
                     };
                 }
 
@@ -343,7 +512,7 @@ namespace keepass2android
 
             };
 
-			new SimpleLoadingDialog(this, GetString(Resource.String.CopyingFile), false,
+            new SimpleLoadingDialog(Activity, GetString(Resource.String.CopyingFile), false,
                                   copyAndReturnPostExecute
                 ).Execute();
 
@@ -355,7 +524,7 @@ namespace keepass2android
             targetPath = targetPath.Trim("|\\?*<\":>+[]/'".ToCharArray());
             if (targetPath == "")
                 targetPath = "imported";
-			if (new File(FilesDir, targetPath).Exists())
+            if (new File(Activity.FilesDir, targetPath).Exists())
             {
                 int c = 1;
                 var ext = UrlUtil.GetExtension(targetPath);
@@ -366,14 +535,15 @@ namespace keepass2android
                     targetPath = filenameWithoutExt + c;
                     if (!String.IsNullOrEmpty(ext))
                         targetPath += "." + ext;
-				} while (new File(FilesDir, targetPath).Exists());
+                } while (new File(Activity.FilesDir, targetPath).Exists());
             }
-			var targetIoc = IOConnectionInfo.FromPath(new File(FilesDir, targetPath).CanonicalPath);
+            var targetIoc = IOConnectionInfo.FromPath(new File(Activity.FilesDir, targetPath).CanonicalPath);
 
             IoUtil.Copy(targetIoc, sourceIoc, App.Kp2a);
             return targetIoc;
         }
 
+
         private void SetRounds(Database db, Preference rounds)
         {
             rounds.Summary = db.KpDatabase.KeyEncryptionRounds.ToString(CultureInfo.InvariantCulture);
@@ -383,6 +553,66 @@ namespace keepass2android
         {
             algorithm.Summary = CipherPool.GlobalPool.GetCipher(db.KpDatabase.DataCipherUuid).DisplayName;
         }
+
+        public void PrepareNoDonatePreference(Context ctx, Preference preference)
+        {
+            ISharedPreferences prefs = PreferenceManager.GetDefaultSharedPreferences(ctx);
+
+            long usageCount = prefs.GetLong(ctx.GetString(Resource.String.UsageCount_key), 0);
+
+#if DEBUG
+            preference.Enabled = (usageCount > 1);
+#else 
+			preference.Enabled = (usageCount > 50);
+#endif
+            preference.PreferenceChange += delegate(object sender, Preference.PreferenceChangeEventArgs args)
+            {
+                if ((bool)args.NewValue)
+                {
+                    new AlertDialog.Builder(ctx)
+                        .SetTitle(ctx.GetString(AppNames.AppNameResource))
+                        .SetCancelable(false)
+                        .SetPositiveButton(Android.Resource.String.Ok, delegate(object o, DialogClickEventArgs eventArgs)
+                        {
+                            Util.GotoDonateUrl(ctx);
+                            ((Dialog)o).Dismiss();
+                        })
+                        .SetMessage(Resource.String.NoDonateOption_question)
+                        .Create().Show();
+
+                }
+            };
+
+        }
+
+        
+    }
+	/// <summary>
+	/// Activity to configure the application and database settings. The database must be unlocked, and this activity will close if it becomes locked.
+	/// </summary>
+    [Activity(Label = "@string/app_name", Theme = "@style/MyTheme")]			
+	public class DatabaseSettingsActivity : LockCloseActivity 
+	{
+
+		public DatabaseSettingsActivity()
+		{
+			
+		}
+
+		public static void Launch(Activity ctx)
+		{
+			ctx.StartActivity(new Intent(ctx, typeof(DatabaseSettingsActivity)));
+		}
+
+	    protected override void OnCreate(Bundle savedInstanceState)
+	    {
+	        base.OnCreate(savedInstanceState);
+            SetContentView(Resource.Layout.preference);
+
+            SetSupportActionBar(FindViewById<Android.Support.V7.Widget.Toolbar>(Resource.Id.toolbar));
+
+	    }
+
 	}
 }