Merge branch 'AlexVallat/Keepass2AndroidPerfOpt'

Conflicts: src/KeePassLib2Android/Serialization/IOConnection.cs src/Kp2aBusinessLogic/IKp2aApp.cs src/Kp2aBusinessLogic/database/Database.cs src/keepass2android/Resources/Resource.designer.cs src/keepass2android/app/App.cs src/keepass2android/fileselect/FileSelectActivity.cs
2013-08-10 20:25:10 +02:00
parent 525821e3b9 27d75b4d5a
commit 370c937578
48 changed files with 1002 additions and 729 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,28 @@
+PCtest
+
+*.suo
+*.userprefs
+*.user
+
+*.designer.cs
+
+src/java/kp2akeytransform/kp2akeytransform.zip
+
+src/Kp2aKeyboardBinding/bin
+src/Kp2aKeyboardBinding/obj
+
+src/kp2akeytransform/bin
+src/kp2akeytransform/obj
+
+src/Kp2aBusinessLogic/bin
+src/Kp2aBusinessLogic/obj
+
+src/Kp2aUnitTests/bin
+src/Kp2aUnitTests/obj
+
+src/monodroid-unittesting/MonoDroidUnitTesting/bin
+src/monodroid-unittesting/MonoDroidUnitTesting/obj
+
 /src/keepass2android/todos.cs
 /src/keepass2android/obj
 /src/keepass2android/bin
--- a/src/KeePassLib2Android/Kp2aLog.cs
+++ b/src/KeePassLib2Android/Kp2aLog.cs
@@ -26,16 +26,29 @@ namespace keepass2android
 	{
 		private static bool? _logToFile;

+		private static object _fileLocker = new object();
+
 		public static void Log(string message)
 		{
 			Android.Util.Log.Debug("KP2A", message);
 			if (LogToFile)
 			{
-				using (var streamWriter = File.AppendText(LogFilename))
+				lock (_fileLocker)
 				{
-					string stringToLog = DateTime.Now+":"+DateTime.Now.Millisecond+ " -- " + message;
-					streamWriter.WriteLine(stringToLog);
+					try
+					{
+						using (var streamWriter = File.AppendText(LogFilename))
+						{
+							string stringToLog = DateTime.Now + ":" + DateTime.Now.Millisecond + " -- " + message;
+							streamWriter.WriteLine(stringToLog);
+						}
+					}
+					catch (Exception e)
+					{
+						Android.Util.Log.Debug("KP2A", "Couldn't write to log file. " + e);
+					}
 				}
+
 			}

 		}
--- a/src/KeePassLib2Android/Serialization/KdbxFile.Read.cs
+++ b/src/KeePassLib2Android/Serialization/KdbxFile.Read.cs
@@ -162,17 +162,6 @@ namespace KeePassLib.Serialization
 			finally { CommonCleanUpRead(sSource, hashedStream); }
 		}

-		public static void CopyStream(Stream input, Stream output)
-		{
-			byte[] buffer = new byte[4096];
-			int read;
-			while ((read = input.Read(buffer, 0, buffer.Length)) > 0)
-			{
-				output.Write(buffer, 0, read);
-			}
-			output.Seek(0, SeekOrigin.Begin);
-		}
-
 		private void CommonCleanUpRead(Stream sSource, HashingStreamEx hashedStream)
 		{
 			hashedStream.Close();
--- a/src/Kp2aBusinessLogic/IKp2aApp.cs
+++ b/src/Kp2aBusinessLogic/IKp2aApp.cs
@@ -1,5 +1,6 @@
 using System;
 using Android.App;
+using System.IO;
 using Android.Content;
 using Android.OS;
 using KeePassLib.Serialization;
@@ -13,11 +14,15 @@ namespace keepass2android
 	/// This also contains methods which are UI specific and should be replacable for testing.
    public interface IKp2aApp
    {
+		/// <summary>
+		/// Locks the currently open database, quicklocking if available (unless false is passed for allowQuickUnlock)
+		/// </summary>
+		void LockDatabase(bool allowQuickUnlock = true);

 		/// <summary>
-		/// Set the flag that the database needs to be locked.
+		/// Loads the specified data as the currently open database, as unlocked.
 		/// </summary>
-        void SetShutdown();
+		void LoadDatabase(IOConnectionInfo ioConnectionInfo, MemoryStream memoryStream, string s, string keyFile, ProgressDialogStatusLogger statusLogger);

 		/// <summary>
 		/// Returns the current database
--- a/src/Kp2aBusinessLogic/database/Database.cs
+++ b/src/Kp2aBusinessLogic/database/Database.cs
@@ -72,25 +72,6 @@ namespace keepass2android
 			set { _loaded = value; }
 		}

-		public bool Open
-		{
-			get { return Loaded && (!Locked); }
-		}
-
-		bool _locked;
-		public bool Locked
-		{
-			get
-			{
-				return _locked;
-			}
-			set
-			{
-				Kp2aLog.Log("Locked=" + _locked);
-				_locked = value;
-			}
-		}
-		
 		public bool DidOpenFileChange()
 		{
 			if (Loaded == false)
@@ -102,7 +83,10 @@ namespace keepass2android
 		}

 		
-		public void LoadData(IKp2aApp app, IOConnectionInfo iocInfo, String password, String keyfile, ProgressDialogStatusLogger status)
+		/// <summary>
+		/// Do not call this method directly. Call App.Kp2a.LoadDatabase instead.
+		/// </summary>
+		public void LoadData(IKp2aApp app, IOConnectionInfo iocInfo, MemoryStream databaseData, String password, String keyfile, ProgressDialogStatusLogger status)
 		{
 			PwDatabase pwDatabase = new PwDatabase();

@@ -121,11 +105,12 @@ namespace keepass2android
 				}
 			}

+			IFileStorage fileStorage = _app.GetFileStorage(iocInfo);
+			var filename = fileStorage.GetFilenameWithoutPathAndExt(iocInfo);
 			try
 			{
-				IFileStorage fileStorage = _app.GetFileStorage(iocInfo);
 				var fileVersion = _app.GetFileStorage(iocInfo).GetCurrentFileVersionFast(iocInfo);
-				pwDatabase.Open(fileStorage.OpenFileForRead(iocInfo), fileStorage.GetFilenameWithoutPathAndExt(iocInfo), iocInfo, compositeKey, status);
+				pwDatabase.Open(databaseData ?? fileStorage.OpenFileForRead(iocInfo), filename, iocInfo, compositeKey, status);
 				LastFileVersion = fileVersion;
 			}
 			catch (Exception)
@@ -135,8 +120,13 @@ namespace keepass2android
 					//if we don't get a password, we don't know whether this means "empty password" or "no password"
 					//retry without password:
 					compositeKey.RemoveUserKey(compositeKey.GetUserKey(typeof (KcpPassword)));
-					pwDatabase.Open(iocInfo, compositeKey, status);
-				}
+					if (databaseData != null)
+					{
+						databaseData.Seek(0, SeekOrigin.Begin);
+					}
+					var fileVersion = _app.GetFileStorage(iocInfo).GetCurrentFileVersionFast(iocInfo);
+					pwDatabase.Open(databaseData ?? fileStorage.OpenFileForRead(iocInfo), filename, iocInfo, compositeKey, status);
+					LastFileVersion = fileVersion;				}
 				else throw;
 			}
 			
@@ -151,15 +141,6 @@ namespace keepass2android
 			SearchHelper = new SearchDbHelper(app);
 		}

-		public bool QuickUnlockEnabled { get; set; }
-
-		//KeyLength of QuickUnlock at time of loading the database.
-		//This is important to not allow an attacker to set the length to 1 when QuickUnlock is started already.
-		public int QuickUnlockKeyLength
-		{
-			get;
-			set;
-		}
 		
 		public PwGroup SearchForText(String str) {
 			PwGroup group = SearchHelper.SearchForText(this, str);
@@ -225,7 +206,6 @@ namespace keepass2android
 			Root = null;
 			KpDatabase = null;
 			_loaded = false;
-			_locked = false;
 			_reloadRequested = false;
 		}
 		
--- a/src/Kp2aBusinessLogic/database/edit/DeleteEntry.cs
+++ b/src/Kp2aBusinessLogic/database/edit/DeleteEntry.cs
@@ -79,7 +79,7 @@ namespace keepass2android
 							else
 							{
 								// Let's not bother recovering from a failure to save a deleted entry.  It is too much work.
-								App.SetShutdown();
+								App.LockDatabase();
 							}
 						}, OnFinishToRun);
 				}
@@ -99,7 +99,7 @@ namespace keepass2android
 							Db.Dirty.Add(pgRecycleBin);
 						} else {
 							// Let's not bother recovering from a failure to save a deleted entry.  It is too much work.
-							App.SetShutdown();
+							App.LockDatabase();
 						}
 						
 					}, OnFinishToRun);
--- a/src/Kp2aBusinessLogic/database/edit/DeleteGroup.cs
+++ b/src/Kp2aBusinessLogic/database/edit/DeleteGroup.cs
@@ -108,7 +108,7 @@ namespace keepass2android
 						Db.Dirty.Add(pgParent);
 					} else {
 						// Let's not bother recovering from a failure to save a deleted group.  It is too much work.
-						App.SetShutdown();
+						App.LockDatabase();
 					}
 				}, OnFinishToRun);
 			}
@@ -146,7 +146,7 @@ namespace keepass2android
 					}
 				} else {
 					// Let's not bother recovering from a failure to save a deleted group.  It is too much work.
-					_app.SetShutdown();
+					_app.LockDatabase();
 				}
 				
 				base.Run();
--- a/src/Kp2aBusinessLogic/database/edit/LoadDB.cs
+++ b/src/Kp2aBusinessLogic/database/edit/LoadDB.cs
@@ -16,21 +16,25 @@ This file is part of Keepass2Android, Copyright 2013 Philipp Crocoll. This file
  */

 using System;
+using System.IO;
+using System.Threading.Tasks;
 using KeePassLib.Serialization;

 namespace keepass2android
 {
 	public class LoadDb : RunnableOnFinish {
 		private readonly IOConnectionInfo _ioc;
+		private readonly Task<MemoryStream> _databaseData;
 		private readonly String _pass;
 		private readonly String _key;
 		private readonly IKp2aApp _app;
 		private readonly bool _rememberKeyfile;
 		
-		public LoadDb(IKp2aApp app, IOConnectionInfo ioc, String pass, String key, OnFinish finish): base(finish)
+		public LoadDb(IKp2aApp app, IOConnectionInfo ioc, Task<MemoryStream> databaseData, String pass, String key, OnFinish finish): base(finish)
 		{
 			_app = app;
 			_ioc = ioc;
+			_databaseData = databaseData;
 			_pass = pass;
 			_key = key;

@@ -44,7 +48,7 @@ namespace keepass2android
 			try
 			{
 				StatusLogger.UpdateMessage(UiStringKey.loading_database);
-				_app.GetDb().LoadData (_app, _ioc, _pass, _key, StatusLogger);
+				_app.LoadDatabase(_ioc, _databaseData == null ? null : _databaseData.Result, _pass, _key, StatusLogger);
 				SaveFileData (_ioc, _key);
 				
 			} catch (KeyFileException) {
--- a/src/keepass2android/EntryActivity.cs
+++ b/src/keepass2android/EntryActivity.cs
@@ -95,7 +95,7 @@ namespace keepass2android

 			Database db = App.Kp2a.GetDb();
 			// Likely the app has been killed exit the activity 
-			if (! db.Loaded)
+			if (!db.Loaded || (App.Kp2a.QuickLocked))
 			{
 				Finish();
 				return;
@@ -600,9 +600,7 @@ namespace keepass2android
 				}
 					return true;
 			case Resource.Id.menu_lock:
-                App.Kp2a.SetShutdown();
-				SetResult(KeePass.ExitLock);
-				Finish();
+                App.Kp2a.LockDatabase();
 				return true;
 			case Resource.Id.menu_translate:
 				try {
--- a/src/keepass2android/EntryEditActivity.cs
+++ b/src/keepass2android/EntryEditActivity.cs
@@ -92,8 +92,7 @@ namespace keepass2android
 			_closeForReload = false;

 			// Likely the app has been killed exit the activity
-			Database db = App.Kp2a.GetDb();
-			if (! db.Open)
+			if (!App.Kp2a.DatabaseIsUnlocked)
 			{
 				Finish();
 				return;
@@ -107,6 +106,8 @@ namespace keepass2android

 			} else
 			{
+				Database db = App.Kp2a.GetDb();
+
 				App.Kp2a.EntryEditActivityState = new EntryEditActivityState();
 				ISharedPreferences prefs = PreferenceManager.GetDefaultSharedPreferences(this);
 				State.ShowPassword = ! prefs.GetBoolean(GetString(Resource.String.maskpass_key), Resources.GetBoolean(Resource.Boolean.maskpass_default));
--- a/src/keepass2android/GroupBaseActivity.cs
+++ b/src/keepass2android/GroupBaseActivity.cs
@@ -240,9 +240,7 @@ namespace keepass2android
 				
 				return true;
 			case Resource.Id.menu_lock:
-				App.Kp2a.SetShutdown();
-				SetResult(KeePass.ExitLock);
-				Finish();
+				App.Kp2a.LockDatabase();
 				return true;

 			case Resource.Id.menu_search:
@@ -251,7 +249,7 @@ namespace keepass2android
 				return true;
 				
 			case Resource.Id.menu_app_settings:
-				AppSettingsActivity.Launch(this);
+				DatabaseSettingsActivity.Launch(this);
 				return true;
 				
 			case Resource.Id.menu_change_master_key:
@@ -353,8 +351,7 @@ namespace keepass2android
 						Toast.MakeText(_act,  "Unrecoverable error: " + Message, ToastLength.Long).Show();
 					});

-					App.Kp2a.SetShutdown();
-					_act.Finish();
+					App.Kp2a.LockDatabase(false);
 				}
 			}
 			
--- a/src/keepass2android/KeePass.cs
+++ b/src/keepass2android/KeePass.cs
@@ -24,6 +24,7 @@ using Android.Preferences;
 using Android.Content.PM;
 using Android.Text;
 using Android.Text.Method;
+using KeePassLib.Serialization;

 namespace keepass2android
 {
@@ -37,12 +38,8 @@ namespace keepass2android
 		public const Result ExitLock = Result.FirstUser+1;
 		public const Result ExitRefresh = Result.FirstUser+2;
 		public const Result ExitRefreshTitle = Result.FirstUser+3;
-		public const Result ExitForceLock = Result.FirstUser+4;
-		public const Result ExitQuickUnlock = Result.FirstUser+5;
-		public const Result ExitCloseAfterTaskComplete = Result.FirstUser+6;
-		public const Result ExitChangeDb = Result.FirstUser+7;
-		public const Result ExitForceLockAndChangeDb = Result.FirstUser+8;
-		public const Result ExitReloadDb = Result.FirstUser+9;
+		public const Result ExitCloseAfterTaskComplete = Result.FirstUser+4;
+		public const Result ExitReloadDb = Result.FirstUser+6;

 		AppTask _appTask;

@@ -106,7 +103,7 @@ namespace keepass2android
 				Dialog dialog = builder.Create();
 				dialog.DismissEvent += (sender, e) => 
 				{
-					StartFileSelect();
+					LaunchNextActivity();
 				};
 				dialog.Show();
 				TextView message = (TextView) dialog.FindViewById(Android.Resource.Id.Message);
@@ -119,7 +116,7 @@ namespace keepass2android

 			} else
 			{
-				StartFileSelect();
+				LaunchNextActivity();
 			}


@@ -157,12 +154,42 @@ namespace keepass2android

 		}
 		
-		private void StartFileSelect() {
-			Intent intent = new Intent(this, typeof(FileSelectActivity));
-			//TEST Intent intent = new Intent(this, typeof(EntryActivity));
-			//Intent intent = new Intent(this, typeof(SearchActivity));
-			//Intent intent = new Intent(this, typeof(QuickUnlock));
+		IOConnectionInfo LoadIoc(string defaultFileName)
+		{
+			return App.Kp2a.FileDbHelper.CursorToIoc(App.Kp2a.FileDbHelper.FetchFileByName(defaultFileName));
+		}

+		private void LaunchNextActivity() {
+
+			if (!App.Kp2a.GetDb().Loaded)
+			{
+				// Load default database
+				ISharedPreferences prefs = Android.Preferences.PreferenceManager.GetDefaultSharedPreferences(this);
+				String defaultFileName = prefs.GetString(PasswordActivity.KeyDefaultFilename, "");
+
+				if (defaultFileName.Length > 0)
+				{
+					try
+					{
+						PasswordActivity.Launch(this, LoadIoc(defaultFileName), _appTask);
+						Finish();
+						return;
+					}
+					catch (Exception e)
+					{
+						Toast.MakeText(this, e.Message, ToastLength.Long);
+						// Ignore exception
+					}
+				}
+			}
+			else
+			{
+				PasswordActivity.Launch(this, App.Kp2a.GetDb().Ioc, _appTask);
+				Finish();
+				return;
+			}
+
+			Intent intent = new Intent(this, typeof(FileSelectActivity));
 			_appTask.ToIntent(intent);


--- a/src/keepass2android/LifecycleDebugActivity.cs
+++ b/src/keepass2android/LifecycleDebugActivity.cs
@@ -56,8 +56,7 @@ namespace keepass2android
 			}
 			else
 			{
-				Kp2aLog.Log(" Loaded=" + App.Kp2a.GetDb().Loaded + ", Locked=" + App.Kp2a.GetDb().Locked 
-					+ ", shutdown=" + App.Kp2a.IsShutdown());
+				Kp2aLog.Log(" DatabaseIsUnlocked=" + App.Kp2a.DatabaseIsUnlocked);
 			}
 		}

--- a/src/keepass2android/LockCloseActivity.cs
+++ b/src/keepass2android/LockCloseActivity.cs
@@ -15,7 +15,10 @@ This file is part of Keepass2Android, Copyright 2013 Philipp Crocoll. This file
  along with Keepass2Android.  If not, see <http://www.gnu.org/licenses/>.
  */

+using System;
+using Android.Content;
 using Android.OS;
+using Android.App;
 using KeePassLib.Serialization;

 namespace keepass2android
@@ -26,12 +29,25 @@ namespace keepass2android
 	/// Checks in OnResume whether the timeout occured and the database must be locked/closed.
 	public class LockCloseActivity : LockingActivity {

-		IOConnectionInfo _ioc;
+		private IOConnectionInfo _ioc;
+		private BroadcastReceiver _intentReceiver;

 		protected override void OnCreate(Bundle savedInstanceState)
 		{
 			base.OnCreate(savedInstanceState);
 			_ioc = App.Kp2a.GetDb().Ioc;
+
+			_intentReceiver = new LockCloseActivityBroadcastReceiver(this);
+			IntentFilter filter = new IntentFilter();
+			filter.AddAction(Intents.DatabaseLocked);
+			RegisterReceiver(_intentReceiver, filter);
+		}
+
+		protected override void OnDestroy()
+		{
+			UnregisterReceiver(_intentReceiver);
+
+			base.OnDestroy();
 		}


@@ -49,9 +65,32 @@ namespace keepass2android
 			App.Kp2a.CheckForOpenFileChanged(this);
 		}

+		private void OnLockDatabase()
+		{
+			Kp2aLog.Log("Finishing " + ComponentName.ClassName + " due to database lock");

+			SetResult(KeePass.ExitLock);
+			Finish();
+		}

+		private class LockCloseActivityBroadcastReceiver : BroadcastReceiver
+		{			
+			readonly LockCloseActivity _service;
+			public LockCloseActivityBroadcastReceiver(LockCloseActivity service)
+			{
+				_service = service;
+			}

+			public override void OnReceive(Context context, Intent intent)
+			{
+				switch (intent.Action)
+				{
+					case Intents.DatabaseLocked:
+						_service.OnLockDatabase();
+						break;
+				}
+			}
+		}
 	}

 }
--- a/src/keepass2android/LockCloseListActivity.cs
+++ b/src/keepass2android/LockCloseListActivity.cs
@@ -16,6 +16,7 @@ This file is part of Keepass2Android, Copyright 2013 Philipp Crocoll. This file
  */

 using System;
+using Android.Content;
 using Android.OS;
 using Android.Runtime;
 using KeePassLib.Serialization;
@@ -33,11 +34,18 @@ namespace keepass2android
 		}

 		IOConnectionInfo _ioc;
+		private BroadcastReceiver _intentReceiver;
 		
 		protected override void OnCreate(Bundle savedInstanceState)
 		{
 			base.OnCreate(savedInstanceState);
 			_ioc = App.Kp2a.GetDb().Ioc;
+
+			_intentReceiver = new LockCloseListActivityBroadcastReceiver(this);
+			IntentFilter filter = new IntentFilter();
+			filter.AddAction(Intents.DatabaseLocked);
+			RegisterReceiver(_intentReceiver, filter);
+
 		}
 		
 		public LockCloseListActivity (IntPtr javaReference, JniHandleOwnership transfer)
@@ -57,6 +65,39 @@ namespace keepass2android
 			App.Kp2a.CheckForOpenFileChanged(this);
 		}

+		protected override void OnDestroy()
+		{
+			UnregisterReceiver(_intentReceiver);
+
+			base.OnDestroy();
+		}
+
+		private void OnLockDatabase()
+		{
+			Kp2aLog.Log("Finishing " + ComponentName.ClassName + " due to database lock");
+
+			SetResult(KeePass.ExitLock);
+			Finish();
+		}
+
+		private class LockCloseListActivityBroadcastReceiver : BroadcastReceiver
+		{
+			readonly LockCloseListActivity _service;
+			public LockCloseListActivityBroadcastReceiver(LockCloseListActivity service)
+			{
+				_service = service;
+			}
+
+			public override void OnReceive(Context context, Intent intent)
+			{
+				switch (intent.Action)
+				{
+					case Intents.DatabaseLocked:
+						_service.OnLockDatabase();
+						break;
+				}
+			}
+		}
 	}
 }

--- a/src/keepass2android/LockingClosePreferenceActivity.cs
+++ b/src/keepass2android/LockingClosePreferenceActivity.cs
@@ -15,6 +15,7 @@ This file is part of Keepass2Android, Copyright 2013 Philipp Crocoll. This file
  along with Keepass2Android.  If not, see <http://www.gnu.org/licenses/>.
  */

+using Android.Content;
 using Android.OS;
 using KeePassLib.Serialization;

@@ -25,11 +26,18 @@ namespace keepass2android

 		
 		IOConnectionInfo _ioc;
+		private BroadcastReceiver _intentReceiver;
 		
 		protected override void OnCreate(Bundle savedInstanceState)
 		{
 			base.OnCreate(savedInstanceState);
 			_ioc = App.Kp2a.GetDb().Ioc;
+
+
+			_intentReceiver = new LockingClosePreferenceActivityBroadcastReceiver(this);
+			IntentFilter filter = new IntentFilter();
+			filter.AddAction(Intents.DatabaseLocked);
+			RegisterReceiver(_intentReceiver, filter);
 		}

 		protected override void OnResume() {
@@ -37,6 +45,41 @@ namespace keepass2android
 			
 			TimeoutHelper.CheckShutdown(this, _ioc);
 		}
+
+
+		protected override void OnDestroy()
+		{
+			UnregisterReceiver(_intentReceiver);
+
+			base.OnDestroy();
+		}
+
+		private void OnLockDatabase()
+		{
+			Kp2aLog.Log("Finishing " + ComponentName.ClassName + " due to database lock");
+
+			SetResult(KeePass.ExitLock);
+			Finish();
+		}
+
+		private class LockingClosePreferenceActivityBroadcastReceiver : BroadcastReceiver
+		{
+			readonly LockingClosePreferenceActivity _service;
+			public LockingClosePreferenceActivityBroadcastReceiver(LockingClosePreferenceActivity service)
+			{
+				_service = service;
+			}
+
+			public override void OnReceive(Context context, Intent intent)
+			{
+				switch (intent.Action)
+				{
+					case Intents.DatabaseLocked:
+						_service.OnLockDatabase();
+						break;
+				}
+			}
+		}
 	}

 }
--- a/src/keepass2android/PasswordActivity.cs
+++ b/src/keepass2android/PasswordActivity.cs
@@ -16,6 +16,7 @@ This file is part of Keepass2Android, Copyright 2013 Philipp Crocoll. This file
  */

 using System;
+using System.Threading.Tasks;
 using Android.App;
 using Android.Content;
 using Android.OS;
@@ -29,6 +30,9 @@ using Android.Text;
 using Android.Content.PM;
 using KeePassLib.Keys;
 using KeePassLib.Serialization;
+using KeePassLib.Utility;
+
+using MemoryStream = System.IO.MemoryStream;

 namespace keepass2android
 {
@@ -49,11 +53,14 @@ namespace keepass2android

 		private const String ViewIntent = "android.intent.action.VIEW";

+		private Task<MemoryStream> _loadDbTask;
 		private IOConnectionInfo _ioConnection;
 		private String _keyFile;
 		private bool _rememberKeyfile;
 		ISharedPreferences _prefs;

+		private bool _started;
+
 		public PasswordActivity (IntPtr javaReference, JniHandleOwnership transfer)
 			: base(javaReference, transfer)
 		{
@@ -123,114 +130,28 @@ namespace keepass2android
 		public void LaunchNextActivity()
 		{
 			AppTask.AfterUnlockDatabase(this);
-
 		}

-		void UnloadDatabase()
-		{
-			App.Kp2a.GetDb().Clear();
-			StopService(new Intent(this, typeof(QuickUnlockForegroundService)));
-		}
-
-		void LockDatabase()
-		{
-			SetResult(KeePass.ExitLock);
-			SetEditText(Resource.Id.password, "");
-			if (App.Kp2a.GetDb().QuickUnlockEnabled)
-				App.Kp2a.GetDb().Locked = true;
-			else
-			{
-				UnloadDatabase();
-			}
-		}
-
-		void LockAndClose()
-		{
-			LockDatabase();
-			Finish();
-
-		}
-
-		bool TryStartQuickUnlock()
-		{
-			if (!App.Kp2a.GetDb().QuickUnlockEnabled)
-				return false;
-
-			if (App.Kp2a.GetDb().KpDatabase.MasterKey.ContainsType(typeof(KcpPassword)) == false)
-				return false;
-			KcpPassword kcpPassword = (KcpPassword)App.Kp2a.GetDb().KpDatabase.MasterKey.GetUserKey(typeof(KcpPassword));
-			String password = kcpPassword.Password.ReadString();
-
-			if (password.Length == 0)
-				return false;
-
-			App.Kp2a.GetDb().Locked = true;
-
-			Intent i = new Intent(this, typeof(QuickUnlock));
-			PutIoConnectionToIntent(_ioConnection, i);
-			Kp2aLog.Log("Starting QuickUnlock");
-			StartActivityForResult(i,0);
-			return true;
-		}
-
-		public void StartQuickUnlockForegroundService()
-		{
-			if (App.Kp2a.GetDb().QuickUnlockEnabled)
-			{
-				StartService(new Intent(this, typeof(QuickUnlockForegroundService)));
-			}
-		}
-
-		bool _startedWithActivityResult;
-
 		protected override void OnActivityResult(int requestCode, Result resultCode, Intent data)
 		{
 			base.OnActivityResult(requestCode, resultCode, data);

-			_startedWithActivityResult = true;
 			Kp2aLog.Log("PasswordActivity.OnActivityResult "+resultCode+"/"+requestCode);

-			if (resultCode != KeePass.ExitCloseAfterTaskComplete)
-			{
-				//Stop service when app activity is left
-				StopService(new Intent(this, typeof(CopyToClipboardService)));
-			}
-
 			//NOTE: original code from k eepassdroid used switch ((Android.App.Result)requestCode) { (but doesn't work here, although k eepassdroid works)
 			switch(resultCode) {

-				case KeePass.ExitNormal:
-					if (!TryStartQuickUnlock())
-					{
-						SetEditText(Resource.Id.password, "");
-					}
+				case KeePass.ExitNormal: // Returned to this screen using the Back key, treat as locking the database
+					App.Kp2a.LockDatabase();
 					break;
-					
 				case KeePass.ExitLock:
-					if (!TryStartQuickUnlock())
-					{
-						LockAndClose();
-					}
-					break;
-				case KeePass.ExitForceLock:
-					SetEditText(Resource.Id.password, "");
-					UnloadDatabase();
-					break;
-				case KeePass.ExitForceLockAndChangeDb:
-					UnloadDatabase();
-					Finish();
-					break;
-				case KeePass.ExitChangeDb:
-					LockAndClose();
+					// The database has already been locked, and the quick unlock screen will be shown if appropriate
 					break;
 				case KeePass.ExitCloseAfterTaskComplete:
+					// Do not lock the database
 					SetResult(KeePass.ExitCloseAfterTaskComplete);
 					Finish();
 					break;
-				case KeePass.ExitQuickUnlock:
-					App.Kp2a.GetDb().Locked = false;
-					LaunchNextActivity();
-					break;
 				case KeePass.ExitReloadDb:
 					//if the activity was killed, fill password/keyfile so the user can directly hit load again
 					if (App.Kp2a.GetDb().Loaded)
@@ -252,9 +173,9 @@ namespace keepass2android
 							SetEditText(Resource.Id.pass_keyfile, kcpKeyfile.Path);
 						}
 					}
-					UnloadDatabase();
+					App.Kp2a.LockDatabase(false);
 					break;
-				case Result.Ok:
+				case Result.Ok: // Key file browse dialog OK'ed.
 					if (requestCode == Intents.RequestCodeFileBrowseForKeyfile) {
 						string filename = Util.IntentToFilename(data);
 						if (filename != null) {
@@ -331,6 +252,13 @@ namespace keepass2android
 				}
 			}

+			if (App.Kp2a.GetDb().Loaded && App.Kp2a.GetDb().Ioc != null &&
+				App.Kp2a.GetDb().Ioc.GetDisplayName() != _ioConnection.GetDisplayName())
+			{
+				// A different database is currently loaded, unload it before loading the new one requested
+				App.Kp2a.LockDatabase(false);
+			}
+
 			AppTask = AppTask.GetTaskInOnCreate(savedInstanceState, Intent);
 			
 			SetContentView(Resource.Layout.password);
@@ -343,8 +271,7 @@ namespace keepass2android
 			Window.SetSoftInputMode(SoftInput.StateVisible);

 			Button confirmButton = (Button)FindViewById(Resource.Id.pass_ok);
-			confirmButton.Click += (sender, e) => 
-			{
+			confirmButton.Click += (sender, e) => {
 				String pass = GetEditText(Resource.Id.password);
 				String key = GetEditText(Resource.Id.pass_keyfile);
 				if (pass.Length == 0 && key.Length == 0)
@@ -353,20 +280,16 @@ namespace keepass2android
 					return;
 				}

-				// Clear before we load
-				UnloadDatabase();
-				
-				// Clear the shutdown flag
-				App.Kp2a.ClearShutdown();
-
 				CheckBox cbQuickUnlock = (CheckBox)FindViewById(Resource.Id.enable_quickunlock);
-				App.Kp2a.GetDb().QuickUnlockEnabled = cbQuickUnlock.Checked;
-				App.Kp2a.GetDb().QuickUnlockKeyLength = int.Parse(_prefs.GetString(GetString(Resource.String.QuickUnlockLength_key), GetString(Resource.String.QuickUnlockLength_default)));
+				App.Kp2a.SetQuickUnlockEnabled(cbQuickUnlock.Checked);

 				Handler handler = new Handler();
-				LoadDb task = new LoadDb(App.Kp2a, _ioConnection, pass, key, new AfterLoad(handler, this));
-				ProgressTask pt = new ProgressTask(App.Kp2a, this, task);
-				pt.Run();
+				LoadDb task = new LoadDb(App.Kp2a, _ioConnection, _loadDbTask, pass, key, new AfterLoad(handler, this));
+				_loadDbTask = null; // prevent accidental re-use
+
+				SetNewDefaultFile();
+
+				new ProgressTask(App.Kp2a, this, task).Run();
 			};
 			
 			/*CheckBox checkBox = (CheckBox) FindViewById(Resource.Id.show_password);
@@ -394,31 +317,7 @@ namespace keepass2android
 				}
 			};
 			
-			CheckBox defaultCheck = (CheckBox)FindViewById(Resource.Id.default_database);
-			//Don't allow the current file to be the default if we don't have stored credentials
-			if ((_ioConnection.IsLocalFile() == false) && (_ioConnection.CredSaveMode != IOCredSaveMode.SaveCred))
-			{
-				defaultCheck.Enabled = false;
-			} else
-			{
-				defaultCheck.Enabled = true;
-			}
-			defaultCheck.CheckedChange += (sender, e) => 
-			{
-				String newDefaultFileName;
 			
-				if (e.IsChecked)
-				{
-					newDefaultFileName = _ioConnection.Path;
-				} else
-				{
-					newDefaultFileName = "";
-				}
-				
-				ISharedPreferencesEditor editor = _prefs.Edit();
-				editor.PutString(KeyDefaultFilename, newDefaultFileName);
-				EditorCompat.Apply(editor);
-			};
 			
 			ImageButton browse = (ImageButton)FindViewById(Resource.Id.browse_button);
 			browse.Click += (sender, evt) => 
@@ -438,8 +337,66 @@ namespace keepass2android
 			};
 			
 			RetrieveSettings();
+		}

+		private void SetNewDefaultFile()
+		{
+//Don't allow the current file to be the default if we don't have stored credentials
+			bool makeFileDefault;
+			if ((_ioConnection.IsLocalFile() == false) && (_ioConnection.CredSaveMode != IOCredSaveMode.SaveCred))
+			{
+				makeFileDefault = false;
+			}
+			else
+			{
+				makeFileDefault = true;
+			}
+			String newDefaultFileName;

+			if (makeFileDefault)
+			{
+				newDefaultFileName = _ioConnection.Path;
+			}
+			else
+			{
+				newDefaultFileName = "";
+			}
+
+			ISharedPreferencesEditor editor = _prefs.Edit();
+			editor.PutString(KeyDefaultFilename, newDefaultFileName);
+			EditorCompat.Apply(editor);
+		}
+
+		protected override void OnStart()
+		{
+			base.OnStart();
+			_started = true;
+		}
+
+		private MemoryStream LoadDbFile()
+		{
+			Kp2aLog.Log("Pre-loading database file starting");
+			var fileStorage = App.Kp2a.GetFileStorage(_ioConnection);
+			var stream = fileStorage.OpenFileForRead(_ioConnection);
+
+			var memoryStream = stream as MemoryStream;
+			if (memoryStream == null)
+			{
+				// Read the file into memory
+				int capacity = 4096; // Default initial capacity, if stream can't report it.
+				if (stream.CanSeek)
+				{
+					capacity = (int)stream.Length;
+				}
+				memoryStream = new MemoryStream(capacity);
+				stream.CopyTo(memoryStream);
+				stream.Close();
+				memoryStream.Seek(0, System.IO.SeekOrigin.Begin);
+			}
+
+			Kp2aLog.Log("Pre-loading database file completed");
+
+			return memoryStream;
 		}

 		protected override void OnSaveInstanceState(Bundle outState)
@@ -448,41 +405,35 @@ namespace keepass2android
 			AppTask.ToBundle(outState);
 		}
 		
-		protected override void OnResume() {
+		protected override void OnResume()
+		{
 			base.OnResume();

-			// If the application was shutdown make sure to clear the password field, if it
-			// was saved in the instance state
-			if (App.Kp2a.IsShutdown()) {
-				LockDatabase();
-			}
-
-			// Clear the shutdown flag
-            App.Kp2a.ClearShutdown();
-
-			if (_startedWithActivityResult)
-				return;
-
-			if (App.Kp2a.GetDb().Loaded && (App.Kp2a.GetDb().Ioc != null)
-			    && (_ioConnection != null) && (App.Kp2a.GetDb().Ioc.GetDisplayName() == _ioConnection.GetDisplayName()))
+			// OnResume is run every time the activity comes to the foreground. This code should only run when the activity is started (OnStart), but must
+			// be run in OnResume rather than OnStart so that it always occurrs after OnActivityResult (when re-creating a killed activity, OnStart occurs before OnActivityResult)
+			if (_started && !IsFinishing)  //use !IsFinishing to make sure we're not starting another activity when we're already finishing (e.g. due to TaskComplete in OnActivityResult)
 			{
-				if (App.Kp2a.GetDb().Locked == false)
+				_started = false;
+				if (App.Kp2a.DatabaseIsUnlocked)
 				{
 					LaunchNextActivity();
 				}
-				else 
+				else if (App.Kp2a.QuickUnlockEnabled && App.Kp2a.QuickLocked)
 				{
-					TryStartQuickUnlock();
+					var i = new Intent(this, typeof(QuickUnlock));
+					PutIoConnectionToIntent(_ioConnection, i);
+					Kp2aLog.Log("Starting QuickUnlock");
+					StartActivityForResult(i, 0);
+				}
+				else if (_loadDbTask == null && _prefs.GetBoolean(GetString(Resource.String.PreloadDatabaseEnabled_key), true))
+				{
+					// Create task to kick off file loading while the user enters the password
+					_loadDbTask = Task.Factory.StartNew<MemoryStream>(LoadDbFile);
 				}
 			}
 		}
 		
 		private void RetrieveSettings() {
-			String defaultFilename = _prefs.GetString(KeyDefaultFilename, "");
-			if (!String.IsNullOrEmpty(_ioConnection.Path) && _ioConnection.Path.Equals(defaultFilename)) {
-				CheckBox checkbox = (CheckBox) FindViewById(Resource.Id.default_database);
-				checkbox.Checked = true;
-			}
 			CheckBox cbQuickUnlock = (CheckBox)FindViewById(Resource.Id.enable_quickunlock);
 			cbQuickUnlock.Checked = _prefs.GetBoolean(GetString(Resource.String.QuickUnlockDefaultEnabled_key), true);
 		}
@@ -540,31 +491,50 @@ namespace keepass2android
 		
 		public override bool OnOptionsItemSelected(IMenuItem item) {
 			switch ( item.ItemId ) {
-			case Resource.Id.menu_about:
-				AboutDialog dialog = new AboutDialog(this);
-				dialog.Show();
-				return true;
+				case Resource.Id.menu_about:
+					AboutDialog dialog = new AboutDialog(this);
+					dialog.Show();
+					return true;
+				
+				case Resource.Id.menu_app_settings:
+					AppSettingsActivity.Launch(this);
+					return true;
+
+				case Resource.Id.menu_change_db:
+					Intent intent = new Intent(this, typeof(FileSelectActivity));
+					AppTask.ToIntent(intent);
+					StartActivityForResult(intent, 0);
+					Finish();
+					return true;
+

-			case Resource.Id.menu_app_settings:
-				AppSettingsActivity.Launch(this);
-				return true;
 			}

+			
+			
 			return base.OnOptionsItemSelected(item);
 		}
 		
 		private class AfterLoad : OnFinish {
 			readonly PasswordActivity _act;
-			public AfterLoad(Handler handler, PasswordActivity act):base(handler) {
+
+			public AfterLoad(Handler handler, PasswordActivity act):base(handler)
+			{
 				_act = act;
 			}


 			public override void Run() {
-				if ( Success ) {
-					_act.StartQuickUnlockForegroundService();
+				if ( Success ) 
+				{
+					_act.SetEditText(Resource.Id.password, "");
+
 					_act.LaunchNextActivity();
-				} else {
+
+					GC.Collect(); // Ensure temporary memory used while loading is collected - it will contain sensitive data such as username and password, and also the large data of the encrypted database file
+				} 
+				else
+				{
 					DisplayMessage(_act);
 				}
 			}
--- a/src/keepass2android/QuickUnlock.cs
+++ b/src/keepass2android/QuickUnlock.cs
@@ -72,18 +72,13 @@ namespace keepass2android

 			TextView txtLabel = (TextView)FindViewById(Resource.Id.QuickUnlock_label);

-			int quickUnlockLength = App.Kp2a.GetDb().QuickUnlockKeyLength;
+			int quickUnlockLength = App.Kp2a.QuickUnlockKeyLength;

 			txtLabel.Text = GetString(Resource.String.QuickUnlock_label, new Java.Lang.Object[]{quickUnlockLength});

 			EditText pwd= (EditText)FindViewById(Resource.Id.QuickUnlock_password);
 			pwd.SetEms(quickUnlockLength);
-			pwd.PostDelayed(() => {
-				InputMethodManager keyboard = (InputMethodManager)GetSystemService(Context.InputMethodService);
-				keyboard.ShowSoftInput(pwd, 0);
-			}, 50);

-			SetResult(KeePass.ExitChangeDb);

 			Button btnUnlock = (Button)FindViewById(Resource.Id.QuickUnlock_button);
 			btnUnlock.Click += (object sender, EventArgs e) => 
@@ -93,11 +88,11 @@ namespace keepass2android
 				String expectedPasswordPart = password.Substring(Math.Max(0,password.Length-quickUnlockLength),Math.Min(password.Length, quickUnlockLength));
 				if (pwd.Text == expectedPasswordPart)
 				{
-					SetResult(KeePass.ExitQuickUnlock);
+					App.Kp2a.UnlockDatabase();
 				}
 				else
 				{
-					SetResult(KeePass.ExitForceLock);
+					App.Kp2a.LockDatabase(false);
 					Toast.MakeText(this, GetString(Resource.String.QuickUnlock_fail), ToastLength.Long).Show();
 				}
 				Finish();
@@ -106,21 +101,21 @@ namespace keepass2android
 			Button btnLock = (Button)FindViewById(Resource.Id.QuickUnlock_buttonLock);
 			btnLock.Click += (object sender, EventArgs e) => 
 			{
-				SetResult(KeePass.ExitForceLockAndChangeDb);
+				App.Kp2a.LockDatabase(false);
 				Finish();
 			};
 		}

-
 		protected override void OnResume()
 		{
 			base.OnResume();

-			if ( ! App.Kp2a.GetDb().Loaded ) {
-				SetResult(KeePass.ExitChangeDb);
-				Finish();
-				return;
-			}
+			EditText pwd = (EditText)FindViewById(Resource.Id.QuickUnlock_password);
+			pwd.PostDelayed(() =>
+			{
+				InputMethodManager keyboard = (InputMethodManager)GetSystemService(Context.InputMethodService);
+				keyboard.ShowSoftInput(pwd, 0);
+			}, 50);
 		}
 	}
 }
--- a/src/keepass2android/Resources/drawable-hdpi/ic_launcher_red.png
+++ b/src/keepass2android/Resources/drawable-hdpi/ic_launcher_red.png
--- a/src/keepass2android/Resources/drawable-mdpi/ic_launcher_red.png
+++ b/src/keepass2android/Resources/drawable-mdpi/ic_launcher_red.png
--- a/src/keepass2android/Resources/drawable-v11/ic_unlocked_gray.png
+++ b/src/keepass2android/Resources/drawable-v11/ic_unlocked_gray.png
--- a/src/keepass2android/Resources/drawable-xhdpi/ic_launcher_red.png
+++ b/src/keepass2android/Resources/drawable-xhdpi/ic_launcher_red.png
--- a/src/keepass2android/Resources/drawable-xxhdpi/ic_launcher_red.png
+++ b/src/keepass2android/Resources/drawable-xxhdpi/ic_launcher_red.png
--- a/src/keepass2android/Resources/drawable/ic_launcher_red.png
+++ b/src/keepass2android/Resources/drawable/ic_launcher_red.png
--- a/src/keepass2android/Resources/drawable/ic_unlocked_gray.png
+++ b/src/keepass2android/Resources/drawable/ic_unlocked_gray.png
--- a/src/keepass2android/Resources/layout-v14/password.xml
+++ b/src/keepass2android/Resources/layout-v14/password.xml
@@ -91,16 +91,10 @@
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/keyfileLine" />
-    <CheckBox
-        android:id="@+id/default_database"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_below="@id/pass_ok"
-        android:text="@string/default_checkbox" />
    <CheckBox
        android:id="@+id/enable_quickunlock"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
-        android:layout_below="@id/default_database"
+        android:layout_below="@id/pass_ok"
        android:text="@string/enable_quickunlock" />
 </RelativeLayout>
--- a/src/keepass2android/Resources/layout/password.xml
+++ b/src/keepass2android/Resources/layout/password.xml
@@ -79,16 +79,10 @@
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/pass_keyfile" />
-    <CheckBox
-        android:id="@+id/default_database"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_below="@id/pass_ok"
-        android:text="@string/default_checkbox" />
    <CheckBox
        android:id="@+id/enable_quickunlock"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
-        android:layout_below="@id/default_database"
+        android:layout_below="@id/pass_ok"
        android:text="@string/enable_quickunlock" />
 </RelativeLayout>
--- a/src/keepass2android/Resources/menu-v11/password.xml
+++ b/src/keepass2android/Resources/menu-v11/password.xml
@@ -20,6 +20,11 @@
        android:title="@string/menu_about"
        android:icon="@android:drawable/ic_menu_help"
        android:showAsAction="ifRoom"
+    />
+	<item android:id="@+id/menu_change_db"
+        android:icon="@drawable/collections_collection"
+        android:title="@string/menu_change_db"
+		android:showAsAction="ifRoom"
    />
    <item android:id="@+id/menu_app_settings"
        android:title="@string/menu_app_settings"
--- a/src/keepass2android/Resources/menu/password.xml
+++ b/src/keepass2android/Resources/menu/password.xml
@@ -19,6 +19,10 @@
    <item android:id="@+id/menu_app_settings"
        android:icon="@android:drawable/ic_menu_preferences"
        android:title="@string/menu_app_settings"
+    />
+	<item android:id="@+id/menu_change_db"
+        android:icon="@drawable/collections_collection"
+        android:title="@string/menu_change_db"
    />
    <item android:id="@+id/menu_about"
        android:icon="@android:drawable/ic_menu_help"
--- a/src/keepass2android/Resources/values/config.xml
+++ b/src/keepass2android/Resources/values/config.xml
@@ -39,7 +39,6 @@
    <string name="omitbackup_key">omitbackup</string>    
    <string name="list_size_key">list_size</string>
    <string name="sort_key">sort_key</string>
-    <string name="timeout_key">timeout_key</string>
 	<string name="TanExpiresOnUse_key">TanExpiresOnUse_key</string>
 	<string name="ShowUsernameInList_key">ShowUsernameInList_key</string>
 	<string name="RememberRecentFiles_key">RememberRecentFiles_key</string>
@@ -92,4 +91,11 @@
    	<item>20</item>
    	<item>28</item>
    </string-array>
+
+	<string name="ShowUnlockedNotification_key">ShowUnlockedNotification</string>
+	<bool name="ShowUnlockedNotification_default">true</bool>
+
+	<string name="PreloadDatabaseEnabled_key">PreloadDatabaseEnabled</string>
+	<bool name="PreloadDatabaseEnabled_default">true</bool>
+
 </resources>
--- a/src/keepass2android/Resources/values/strings.xml
+++ b/src/keepass2android/Resources/values/strings.xml
@@ -131,6 +131,7 @@
  <string name="menu_search">Search</string>
  <string name="menu_search_advanced">Advanced Search</string>
  <string name="menu_url">Go to URL</string>
+	<string name="menu_change_db">Change database…</string>
  <string name="minus">Minus</string>
  <string name="never">Never</string>
  <string name="yes">Yes</string>
@@ -218,7 +219,8 @@
  <string name="add_binary">Add file attachment...</string>
  <string name="add_extra_string">Add additional string</string>
  <string name="delete_extra_string">Delete additional string</string>
-  <string name="database_loaded_quickunlock_enabled">Database loaded, QuickUnlock enabled.</string>
+	<string name="database_loaded_quickunlock_enabled">%1$s: Locked. QuickUnlock enabled.</string>
+	<string name="database_loaded_unlocked">%1$s: Unlocked.</string>
  <string name="credentials_dialog_title">Enter server credentials</string>
  <string name="UseFileTransactions_title">File transactions</string>
  <string name="UseFileTransactions_summary">Use file transactions for writing databases</string>
@@ -232,7 +234,13 @@
  <string name="OpenKp2aKeyboardAutomatically_title">Keyboard selection dialog</string>
  <string name="OpenKp2aKeyboardAutomatically_summary">Open keyboard selection dialog when entry is available through KP2A keyboard after search.</string>

-  <string name="AskOverwriteBinary">Do you want to overwrite the existing binary with the same name?</string>
+	<string name="ShowUnlockedNotification_title">Notification while unlocked</string>
+	<string name="ShowUnlockedNotification_summary">Show an ongoing notification while the database is unlocked.</string>
+
+	<string name="PreloadDatabaseEnabled_title">Pre-load database file</string>
+	<string name="PreloadDatabaseEnabled_summary">Start background loading or downloading of the database file during password entry.</string>
+
+	<string name="AskOverwriteBinary">Do you want to overwrite the existing binary with the same name?</string>
  <string name="AskOverwriteBinary_title">Overwrite existing binary?</string>
  <string name="AskOverwriteBinary_yes">Overwrite</string>
  <string name="AskOverwriteBinary_no">Rename</string>
--- a/src/keepass2android/Resources/xml/preferences.xml
+++ b/src/keepass2android/Resources/xml/preferences.xml
@@ -71,6 +71,13 @@
 		  android:entryValues="@array/clipboard_timeout_values"
 		  android:dialogTitle="@string/app_timeout"
 		  android:defaultValue="@string/clipboard_timeout_default"/>
+		<CheckBoxPreference
+			android:enabled="true"
+				 android:persistent="true"
+				 android:summary="@string/ShowUnlockedNotification_summary"
+				 android:defaultValue="@bool/ShowUnlockedNotification_default"
+				 android:title="@string/ShowUnlockedNotification_title"
+				 android:key="@string/ShowUnlockedNotification_key" />
 		<CheckBoxPreference
 		  android:key="@string/maskpass_key"
 		  android:title="@string/maskpass_title"
@@ -162,6 +169,12 @@
 			  android:defaultValue="true"
 			  android:title="@string/CheckForFileChangesOnSave_title"
 			  android:key="@string/CheckForFileChangesOnSave_key" />
-
+		<CheckBoxPreference
+			android:enabled="true"
+				 android:persistent="true"
+				 android:summary="@string/PreloadDatabaseEnabled_summary"
+				 android:defaultValue="@bool/PreloadDatabaseEnabled_default"
+				 android:title="@string/PreloadDatabaseEnabled_title"
+				 android:key="@string/PreloadDatabaseEnabled_key" />
 	</PreferenceScreen>
 </PreferenceScreen>
--- a/src/keepass2android/ShareUrlResults.cs
+++ b/src/keepass2android/ShareUrlResults.cs
@@ -71,7 +71,7 @@ namespace keepass2android

 				Finish();
 			}
-			else if (_db.Locked)
+			else if (App.Kp2a.QuickLocked)
 			{
 				PasswordActivity.Launch(this,_db.Ioc, AppTask);
 				Finish();
--- a/src/keepass2android/app/App.cs
+++ b/src/keepass2android/app/App.cs
@@ -16,11 +16,14 @@ This file is part of Keepass2Android, Copyright 2013 Philipp Crocoll. This file
  */

 using System;
+using System.Collections.Generic;
+using System.IO;
 using Android.App;
 using Android.Content;
 using Android.OS;
 using Android.Runtime;
 using Android.Widget;
+using KeePassLib.Keys;
 using KeePassLib.Serialization;
 using Android.Preferences;
 using keepass2android.Io;
@@ -60,25 +63,96 @@ namespace keepass2android
 	/// </summary>
    public class Kp2aApp: IKp2aApp, ICacheSupervisor
 	{
-        public bool IsShutdown()
-        {
-            return _shutdown;
+		public void LockDatabase(bool allowQuickUnlock = true)
+		{
+			if (GetDb().Loaded)
+			{
+				if (QuickUnlockEnabled && allowQuickUnlock &&
+					_db.KpDatabase.MasterKey.ContainsType(typeof(KcpPassword)) &&
+					!((KcpPassword)App.Kp2a.GetDb().KpDatabase.MasterKey.GetUserKey(typeof(KcpPassword))).Password.IsEmpty)
+				{
+					if (!QuickLocked)
+					{
+						Kp2aLog.Log("QuickLocking database");
+
+						QuickLocked = true;
+					}
+					else
+					{
+						Kp2aLog.Log("Database already QuickLocked");
+					}
+				}
+				else
+				{
+					Kp2aLog.Log("Locking database");
+
+					// Couldn't quick-lock, so unload database instead
+					_db.Clear();
+					QuickLocked = false;
+				}
+			}
+			else
+			{
+				Kp2aLog.Log("Database not loaded, couldn't lock");
+			}
+
+			UpdateOngoingNotification();
+			Application.Context.SendBroadcast(new Intent(Intents.DatabaseLocked));
        }

-        public void SetShutdown()
-        {
-	        Kp2aLog.Log("set shutdown");
-            _shutdown = true;
-        }
+		public void LoadDatabase(IOConnectionInfo ioConnectionInfo, MemoryStream memoryStream, string password, string keyFile, ProgressDialogStatusLogger statusLogger)
+		{
+			_db.LoadData(this, ioConnectionInfo, memoryStream, password, keyFile, statusLogger);

-        public void ClearShutdown()
-        {
-			Kp2aLog.Log("clear shutdown");
-            _shutdown = false;
-        }
+			UpdateOngoingNotification();
+		}

-        private Database _db;
-        private bool _shutdown;
+		internal void UnlockDatabase()
+		{
+			QuickLocked = false;
+
+			UpdateOngoingNotification();
+		}
+
+		private void UpdateOngoingNotification()
+		{
+			// Start or update the notification icon service to reflect the current state
+			var ctx = Application.Context;
+			ctx.StartService(new Intent(ctx, typeof(OngoingNotificationsService)));
+		}
+
+		public bool DatabaseIsUnlocked
+		{
+			get { return _db.Loaded && !QuickLocked; }
+		}
+
+		#region QuickUnlock
+		public void SetQuickUnlockEnabled(bool enabled)
+		{
+			if (enabled)
+			{
+				//Set KeyLength of QuickUnlock at time of enabling.
+				//This is important to not allow an attacker to set the length to 1 when QuickUnlock is started already.
+
+				var ctx = Application.Context;
+				var prefs = PreferenceManager.GetDefaultSharedPreferences(ctx);
+				QuickUnlockKeyLength = Math.Max(1, int.Parse(prefs.GetString(ctx.GetString(Resource.String.QuickUnlockLength_key), ctx.GetString(Resource.String.QuickUnlockLength_default))));
+			}
+			QuickUnlockEnabled = enabled;
+		}
+
+		public bool QuickUnlockEnabled { get; private set; }
+
+		public int QuickUnlockKeyLength { get; private set; }
+    
+		/// <summary>
+		/// If true, the database must be regarded as locked and not exposed to the user.
+		/// </summary>
+		public bool QuickLocked { get; private set; }
+		
+		#endregion
+
+		private Database _db;
        
        /// <summary>
        /// See comments to EntryEditActivityState.
@@ -124,6 +198,7 @@ namespace keepass2android
            {
                if (_db.ReloadRequested)
                {
+	                LockDatabase(false);
                    activity.SetResult(KeePass.ExitReloadDb);
                    activity.Finish();
 					//todo: return?
@@ -143,6 +218,7 @@ namespace keepass2android
 				(dlgSender, dlgEvt) =>
 				{
 					_db.ReloadRequested = true;
+					LockDatabase(false);
 					activity.SetResult(KeePass.ExitReloadDb);
 					activity.Finish();

@@ -223,7 +299,7 @@ namespace keepass2android

 			public RealProgressDialog(Context ctx)
 			{
-				this._pd = new ProgressDialog(ctx);
+				_pd = new ProgressDialog(ctx);
 			}

 			public void SetTitle(string title)
--- a/src/keepass2android/app/ApplicationBroadcastReceiver.cs
+++ b/src/keepass2android/app/ApplicationBroadcastReceiver.cs
@@ -0,0 +1,25 @@
+using System;
+using System.Linq;
+using Android.Content;
+using Android.App;
+
+
+namespace keepass2android
+{
+	[BroadcastReceiver]
+	[IntentFilter(new[] { Intents.LockDatabase })]
+	public class ApplicationBroadcastReceiver : BroadcastReceiver
+	{
+		public override void OnReceive(Context context, Intent intent)
+		{
+			Kp2aLog.Log("Received broadcast intent: " + intent.Action);
+
+			switch (intent.Action)
+			{
+				case Intents.LockDatabase:
+					App.Kp2a.LockDatabase();
+					break;
+			}
+		}
+	}
+}
--- a/src/keepass2android/fileselect/FileSelectActivity.cs
+++ b/src/keepass2android/fileselect/FileSelectActivity.cs
@@ -63,11 +63,6 @@ namespace keepass2android

 		internal AppTask AppTask;

-		IOConnectionInfo LoadIoc(string defaultFileName)
-		{
-			return _DbHelper.CursorToIoc(_DbHelper.FetchFileByName(defaultFileName));
-		}
-
 		void ShowFilenameDialog(bool showOpenButton, bool showCreateButton, bool showBrowseButton, string defaultFilename, string detailsText, int requestCodeBrowse)
 		{
 			AlertDialog.Builder builder = new AlertDialog.Builder(this);
@@ -319,14 +314,20 @@ namespace keepass2android
 			
 			public override void Run() {
 				if (Success) {
+					// Update the ongoing notification
+					_activity.StartService(new Intent(_activity, typeof(OngoingNotificationsService)));
+
+
 					if (_activity.RememberRecentFiles())
 					{
 						// Add to recent files
 						FileDbHelper dbHelper = App.Kp2a.FileDbHelper;

+					
 						//TODO: getFilename always returns "" -> bug?
 						dbHelper.CreateFile(_ioc, Filename);
 					}
+
 					GroupActivity.Launch(_activity, _activity.AppTask);
 					
 				} else {
@@ -391,6 +392,7 @@ namespace keepass2android
 				        ioc.Password = password;
 				        ioc.CredSaveMode = (IOCredSaveMode)credentialRememberMode;
 				        PasswordActivity.Launch(this, ioc, AppTask);
+						Finish();
 				    });
 				builder.SetView(LayoutInflater.Inflate(Resource.Layout.url_credentials, null));
 				builder.SetNeutralButton(GetString(Android.Resource.String.Cancel), 
@@ -406,6 +408,7 @@ namespace keepass2android
 				try
 				{
 					PasswordActivity.Launch(this, ioc, AppTask);
+					Finish();
 				} catch (Java.IO.FileNotFoundException)
 				{
 					Toast.MakeText(this,     Resource.String.FileNotFound, ToastLength.Long).Show();
@@ -489,36 +492,6 @@ namespace keepass2android

 			_fileSelectButtons.UpdateExternalStorageWarning();

-			if (!_createdWithActivityResult)
-			{
-				if ((Intent.Action == Intent.ActionSend) && (App.Kp2a.GetDb().Loaded))
-				{
-					PasswordActivity.Launch(this, App.Kp2a.GetDb().Ioc , AppTask);
-				} else
-				{
-					
-					// Load default database
-					ISharedPreferences prefs = Android.Preferences.PreferenceManager.GetDefaultSharedPreferences(this);
-					String defaultFileName = prefs.GetString(PasswordActivity.KeyDefaultFilename, "");
-					
-					if (defaultFileName.Length > 0)
-					{
-						Java.IO.File db = new Java.IO.File(defaultFileName);
-						
-						if (db.Exists())
-						{
-							try
-							{
-								PasswordActivity.Launch(this, LoadIoc(defaultFileName), AppTask);
-							} catch (Exception e)
-							{
-								Toast.MakeText(this, e.Message, ToastLength.Long);
-								// Ignore exception
-							}
-						}
-					}
-				}
-			}

 		}

@@ -526,6 +499,15 @@ namespace keepass2android
 		{
 			base.OnStart();
 			Kp2aLog.Log("FileSelect.OnStart");
+
+			var db = App.Kp2a.GetDb();
+			if (db.Loaded)
+			{
+				PasswordActivity.Launch(this, db.Ioc, AppTask);
+				Finish();
+			}
+
+			
 		}
 		public override bool OnCreateOptionsMenu(IMenu menu) {
 			base.OnCreateOptionsMenu(menu);
--- a/src/keepass2android/intents/Intents.cs
+++ b/src/keepass2android/intents/Intents.cs
@@ -22,8 +22,13 @@ namespace keepass2android
 	/// <summary>
 	/// Contains constants to be used in intents
 	/// </summary>
-	public class Intents {
-		public const String Timeout = "keepass2android.timeout";
+	public class Intents 
+	{
+		/// <summary>Broadcast this intent to lock the database</summary>
+		public const String LockDatabase = "keepass2android.lock_database";
+		
+		/// <summary>This intent will be broadcast once the database has been locked. Sensitive information displayed should be hidden and unloaded.</summary>
+		public const String DatabaseLocked = "keepass2android.database_locked";

 		public const String CopyUsername = "keepass2android.copy_username";
 		public const String CopyPassword = "keepass2android.copy_password";
--- a/src/keepass2android/keepass2android.csproj
+++ b/src/keepass2android/keepass2android.csproj
@@ -77,6 +77,7 @@
    <Reference Include="Mono.Android.Support.v4" />
  </ItemGroup>
  <ItemGroup>
+    <Compile Include="app\ApplicationBroadcastReceiver.cs" />
    <Compile Include="icons\DrawableFactory.cs" />
    <Compile Include="icons\Icons.cs" />
    <Compile Include="Resources\Resource.designer.cs" />
@@ -86,6 +87,8 @@
    <Compile Include="fileselect\FileSelectActivity.cs" />
    <Compile Include="fileselect\FileDbHelper.cs" />
    <Compile Include="search\SearchProvider.cs" />
+    <Compile Include="services\OngoingNotificationsService.cs" />
+    <Compile Include="settings\DatabaseSettingsActivity.cs" />
    <Compile Include="Utils\Util.cs" />
    <Compile Include="intents\Intents.cs" />
    <Compile Include="fileselect\BrowserDialog.cs" />
@@ -127,12 +130,10 @@
    <Compile Include="compat\EditorCompat.cs" />
    <Compile Include="compat\ActivityCompat.cs" />
    <Compile Include="ShareUrlResults.cs" />
-    <Compile Include="services\TimeoutService.cs" />
    <Compile Include="services\CopyToClipboardService.cs" />
    <Compile Include="search\SearchActivity.cs" />
    <Compile Include="QuickUnlock.cs" />
    <Compile Include="LifecycleDebugActivity.cs" />
-    <Compile Include="services\QuickUnlockForegroundService.cs" />
    <Compile Include="AssemblyInfo.cs" />
    <Compile Include="views\FileSelectButtons.cs" />
    <Compile Include="EntryEditActivityState.cs" />
@@ -703,4 +704,25 @@
      <SubType>Designer</SubType>
    </AndroidResource>
  </ItemGroup>
+  <ItemGroup>
+    <AndroidResource Include="Resources\drawable\ic_unlocked_gray.png" />
+  </ItemGroup>
+  <ItemGroup>
+    <AndroidResource Include="Resources\drawable-v11\ic_unlocked_gray.png" />
+  </ItemGroup>
+  <ItemGroup>
+    <AndroidResource Include="Resources\drawable-mdpi\ic_launcher_red.png" />
+  </ItemGroup>
+  <ItemGroup>
+    <AndroidResource Include="Resources\drawable-xhdpi\ic_launcher_red.png" />
+  </ItemGroup>
+  <ItemGroup>
+    <AndroidResource Include="Resources\drawable-xxhdpi\ic_launcher_red.png" />
+  </ItemGroup>
+  <ItemGroup>
+    <AndroidResource Include="Resources\drawable-hdpi\ic_launcher_red.png" />
+  </ItemGroup>
+  <ItemGroup>
+    <AndroidResource Include="Resources\drawable\ic_launcher_red.png" />
+  </ItemGroup>
 </Project>
--- a/src/keepass2android/search/SearchProvider.cs
+++ b/src/keepass2android/search/SearchProvider.cs
@@ -70,7 +70,7 @@ namespace keepass2android.search

 		public override Android.Database.ICursor Query(Android.Net.Uri uri, string[] projection, string selection, string[] selectionArgs, string sortOrder)
 		{
-			if (_db.Open) // Can't show suggestions if the database is locked!
+			if (App.Kp2a.DatabaseIsUnlocked) // Can't show suggestions if the database is locked!
 			{
 				switch ((UriMatches)UriMatcher.Match(uri))
 				{
--- a/src/keepass2android/search/SearchResults.cs
+++ b/src/keepass2android/search/SearchResults.cs
@@ -56,11 +56,9 @@ namespace keepass2android.search

 		private void ProcessIntent(Intent intent)
 		{
-			_db = App.Kp2a.GetDb();
-			
-
 			// Likely the app has been killed exit the activity 
-			if ( ! _db.Open ) {
+			if (!App.Kp2a.DatabaseIsUnlocked)
+			{
 				Finish();
 			}

--- a/src/keepass2android/services/CopyToClipboardService.cs
+++ b/src/keepass2android/services/CopyToClipboardService.cs
@@ -57,7 +57,7 @@ namespace keepass2android

 		CopyToClipboardBroadcastReceiver _copyToClipBroadcastReceiver;
 		NotificationDeletedBroadcastReceiver _notificationDeletedBroadcastReceiver;
-
+		StopOnLockBroadcastReceiver _stopOnLockBroadcastReceiver;

 		public CopyToClipboardService()
 		{
@@ -74,6 +74,11 @@ namespace keepass2android
 		{
 			Kp2aLog.Log("Received intent to provide access to entry");

+			_stopOnLockBroadcastReceiver = new StopOnLockBroadcastReceiver(this);
+			IntentFilter filter = new IntentFilter();
+			filter.AddAction(Intents.DatabaseLocked);
+			RegisterReceiver(_stopOnLockBroadcastReceiver, filter);
+
 			String uuidBytes =  intent.GetStringExtra(EntryActivity.KeyEntry);
 			bool closeAfterCreate = intent.GetBooleanExtra(EntryActivity.KeyCloseAfterCreate, false);
 			
@@ -99,12 +104,25 @@ namespace keepass2android
 			return StartCommandResult.RedeliverIntent;
 		}

+		private void OnLockDatabase()
+		{
+			Kp2aLog.Log("Stopping clipboard service due to database lock");
+
+			StopSelf();
+		}
+
 		private NotificationManager _notificationManager;
 		private int _numElementsToWaitFor;
 		
 		public override void OnDestroy()
 		{
+			Kp2aLog.Log("CopyToClipboardService.OnDestroy");
+
 			// These members might never get initialized if the app timed out
+			if (_stopOnLockBroadcastReceiver != null)
+			{
+				UnregisterReceiver(_stopOnLockBroadcastReceiver);
+			}
 			if (_copyToClipBroadcastReceiver != null)
 			{
 				UnregisterReceiver(_copyToClipBroadcastReceiver);
@@ -114,7 +132,10 @@ namespace keepass2android
 				UnregisterReceiver(_notificationDeletedBroadcastReceiver);
 			}
 			if ( _notificationManager != null ) {
-				_notificationManager.CancelAll();
+				_notificationManager.Cancel(NotifyPassword);
+				_notificationManager.Cancel(NotifyUsername);
+				_notificationManager.Cancel(NotifyKeyboard);
+
 				_numElementsToWaitFor= 0;
 				clearKeyboard();
 			}
@@ -143,7 +164,9 @@ namespace keepass2android
 			// Notification Manager
 			_notificationManager = (NotificationManager)GetSystemService(NotificationService);

-			_notificationManager.CancelAll();
+			_notificationManager.Cancel(NotifyPassword);
+			_notificationManager.Cancel(NotifyUsername);
+			_notificationManager.Cancel(NotifyKeyboard);
 			_numElementsToWaitFor = 0;
 			clearKeyboard();

@@ -358,7 +381,24 @@ namespace keepass2android
 			return notify;
 		}

+		private class StopOnLockBroadcastReceiver : BroadcastReceiver
+		{
+			readonly CopyToClipboardService _service;
+			public StopOnLockBroadcastReceiver(CopyToClipboardService service)
+			{
+				_service = service;
+			}

+			public override void OnReceive(Context context, Intent intent)
+			{
+				switch (intent.Action)
+				{
+					case Intents.DatabaseLocked:
+						_service.OnLockDatabase();
+						break;
+				}
+			}
+		}
 		
 		class CopyToClipboardBroadcastReceiver: BroadcastReceiver
 		{
--- a/src/keepass2android/services/OngoingNotificationsService.cs
+++ b/src/keepass2android/services/OngoingNotificationsService.cs
@@ -0,0 +1,187 @@
+/*
+This file is part of Keepass2Android, Copyright 2013 Philipp Crocoll. This file is based on Keepassdroid, Copyright Brian Pellin.
+
+  Keepass2Android 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 2 of the License, or
+  (at your option) any later version.
+
+  Keepass2Android 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 Keepass2Android.  If not, see <http://www.gnu.org/licenses/>.
+  */
+
+using System;
+using Android.App;
+using Android.Content;
+using Android.Graphics;
+using Android.OS;
+using Android.Preferences;
+using Android.Support.V4.App;
+using KeePassLib.Utility;
+
+namespace keepass2android
+{
+	/// <summary>
+	/// Service for showing ongoing notifications
+	/// 
+	/// Shows database unlocked warning persistent notification
+	/// Shows Quick-Unlock notification
+	/// </summary>
+	[Service]
+	public class OngoingNotificationsService : Service
+	{
+		
+		#region Service
+		private const int QuickUnlockId = 100;
+		private const int UnlockedWarningId = 200;
+
+		public override StartCommandResult OnStartCommand(Intent intent, StartCommandFlags flags, int startId)
+		{
+			Kp2aLog.Log("Starting/Updating OngoingNotificationsService. Database " + (App.Kp2a.DatabaseIsUnlocked ? "Unlocked" : (App.Kp2a.QuickLocked ? "QuickLocked" : "Locked")));
+
+			var notificationManager = (NotificationManager)GetSystemService(NotificationService);
+					
+			// Set the icon to reflect the current state
+			if (App.Kp2a.DatabaseIsUnlocked)
+			{
+				// Clear current foreground status and QuickUnlock icon
+				StopForeground(true);
+
+				if (ShowUnlockedNotification)
+				{
+					// No need for task to get foreground priority, we don't need any special treatment just for showing that the database is unlocked
+					notificationManager.Notify(UnlockedWarningId, GetUnlockedNotification());
+				}
+				else
+				{
+					notificationManager.Cancel(UnlockedWarningId);
+				}
+			}
+			else 
+			{
+				notificationManager.Cancel(UnlockedWarningId);
+
+				if (App.Kp2a.QuickLocked)
+				{
+					// Show the Quick Unlock notification
+					StartForeground(QuickUnlockId, GetQuickUnlockNotification());
+				}
+				else
+				{
+					// Not showing any notification, database is locked, no point in keeping running
+					StopSelf();
+				}
+			}
+
+			return StartCommandResult.NotSticky;
+		}
+
+		private bool ShowUnlockedNotification
+		{
+			get { return PreferenceManager.GetDefaultSharedPreferences(this).GetBoolean(GetString(Resource.String.ShowUnlockedNotification_key), Resources.GetBoolean(Resource.Boolean.ShowUnlockedNotification_default)); }
+		}
+
+		public override void OnTaskRemoved(Intent rootIntent)
+		{
+			base.OnTaskRemoved(rootIntent);
+
+			Kp2aLog.Log("OngoingNotificationsService.OnTaskRemoved: " + rootIntent.Action);
+
+			// If the user has closed the task (probably by swiping it out of the recent apps list) then lock the database
+			App.Kp2a.LockDatabase();
+		}
+
+		public override void OnDestroy()
+		{
+			base.OnDestroy();
+
+			var notificationManager = (NotificationManager)GetSystemService(NotificationService);
+			notificationManager.Cancel(UnlockedWarningId);
+			// Quick Unlock notification should be removed automatically by the service (if present), as it was the foreground notification.
+
+			Kp2aLog.Log("OngoingNotificationsService.OnDestroy");
+
+			// If the service is killed, then lock the database immediately (as the unlocked warning icon will no longer display).
+			if (App.Kp2a.DatabaseIsUnlocked)
+			{
+				App.Kp2a.LockDatabase();
+			}
+		}
+		
+		public override IBinder OnBind(Intent intent)
+		{
+			return null;
+		}
+
+		#endregion
+
+		#region QuickUnlock
+
+		private Notification GetQuickUnlockNotification()
+		{
+			NotificationCompat.Builder builder = 
+				new NotificationCompat.Builder(this)
+					.SetSmallIcon(Resource.Drawable.ic_launcher_gray)
+					.SetLargeIcon(BitmapFactory.DecodeResource(Resources, AppNames.LauncherIcon))
+					.SetContentTitle(GetString(Resource.String.app_name))
+					.SetContentText(GetString(Resource.String.database_loaded_quickunlock_enabled, GetDatabaseName()));
+
+			var startKp2APendingIntent = GetSwitchToAppPendingIntent();
+			builder.SetContentIntent(startKp2APendingIntent);
+
+			return builder.Build();
+		}
+
+		#endregion
+
+		#region Unlocked Warning
+
+		private Notification GetUnlockedNotification()
+		{
+			NotificationCompat.Builder builder =
+				new NotificationCompat.Builder(this)
+					.SetOngoing(true)
+					.SetSmallIcon(Resource.Drawable.ic_unlocked_gray)
+					.SetLargeIcon(BitmapFactory.DecodeResource(Resources, Resource.Drawable.ic_launcher_red))
+					.SetContentTitle(GetString(Resource.String.app_name))
+					.SetContentText(GetString(Resource.String.database_loaded_unlocked, GetDatabaseName()));
+
+			// Default action is to show Kp2A
+			builder.SetContentIntent(GetSwitchToAppPendingIntent());
+			// Additional action to allow locking the database
+			builder.AddAction(Android.Resource.Drawable.IcLockLock, GetString(Resource.String.menu_lock), PendingIntent.GetBroadcast(this, 0, new Intent(Intents.LockDatabase), PendingIntentFlags.UpdateCurrent));
+			
+			return builder.Build();
+		}
+
+		private PendingIntent GetSwitchToAppPendingIntent()
+		{
+			var startKp2aIntent = new Intent(this, typeof(KeePass));
+			startKp2aIntent.SetAction(Intent.ActionMain);
+			startKp2aIntent.AddCategory(Intent.CategoryLauncher);
+
+			return PendingIntent.GetActivity(this, 0, startKp2aIntent, PendingIntentFlags.UpdateCurrent);
+		}
+
+		private static string GetDatabaseName()
+		{
+			
+			var db = App.Kp2a.GetDb().KpDatabase;
+			var name = db.Name;
+			if (String.IsNullOrEmpty(name))
+			{
+				//todo: if paranoid ("don't remember recent files") return "***"
+				name = UrlUtil.StripExtension(UrlUtil.GetFileName(db.IOConnectionInfo.Path));
+			}
+
+			return name;
+		}
+		#endregion
+	}
+}
+
--- a/src/keepass2android/services/QuickUnlockForegroundService.cs
+++ b/src/keepass2android/services/QuickUnlockForegroundService.cs
@@ -1,79 +0,0 @@
-/*
-This file is part of Keepass2Android, Copyright 2013 Philipp Crocoll. 
-
-  Keepass2Android 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 2 of the License, or
-  (at your option) any later version.
-
-  Keepass2Android 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 Keepass2Android.  If not, see <http://www.gnu.org/licenses/>.
-  */
-
-using Android.App;
-using Android.Content;
-using Android.OS;
-using Android.Support.V4.App;
-using Android.Graphics;
-
-namespace keepass2android
-{
-	/// <summary>
-	/// This service is started as soon as a Database with QuickUnlock enabled is opened.
-	/// Its only purpose is to be a foreground service which prevents the App from being killed (in most situations)
-	/// </summary>
-[Service]
-	public class QuickUnlockForegroundService : Service
-	{
-		public override IBinder OnBind(Intent intent)
-		{
-			return null;
-		}		
-
-		const int QuickUnlockForegroundServiceId = 238787;
-
-		public override StartCommandResult OnStartCommand(Intent intent, StartCommandFlags flags, int startId)
-		{
-			Kp2aLog.Log("Starting QuickUnlockForegroundService");
-
-			//create notification item
-			NotificationCompat.Builder mBuilder =
-				new NotificationCompat.Builder(this)
-					.SetSmallIcon(Resource.Drawable.ic_launcher_gray)
-					.SetLargeIcon(BitmapFactory.DecodeResource(Resources,  AppNames.LauncherIcon))
- 					.SetContentTitle(GetText(Resource.String.app_name))
-					.SetContentText(GetText(Resource.String.database_loaded_quickunlock_enabled));
-
-			Intent startKp2aIntent = new Intent(this, typeof(KeePass));
-			startKp2aIntent.SetAction(Intent.ActionMain);
-			startKp2aIntent.AddCategory(Intent.CategoryLauncher);
-
-			PendingIntent startKp2APendingIntent =
-				PendingIntent.GetActivity(this, 0, startKp2aIntent, PendingIntentFlags.UpdateCurrent);
-			mBuilder.SetContentIntent(startKp2APendingIntent);
- 
-			StartForeground(QuickUnlockForegroundServiceId , mBuilder.Build());
-
-			return StartCommandResult.NotSticky;
-
-		}
-
-		public override void OnCreate()
-		{
-			base.OnCreate();
-			Kp2aLog.Log("Creating QuickUnlockForegroundService");
-		}
-
-		public override void OnDestroy()
-		{
-			base.OnDestroy();
-			Kp2aLog.Log("Destroying QuickUnlockForegroundService");
-		}
-	}
-}
-
--- a/src/keepass2android/services/TimeoutService.cs
+++ b/src/keepass2android/services/TimeoutService.cs
@@ -1,129 +0,0 @@
-/*
-This file is part of Keepass2Android, Copyright 2013 Philipp Crocoll. This file is based on Keepassdroid, Copyright Brian Pellin.
-
-  Keepass2Android 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 2 of the License, or
-  (at your option) any later version.
-
-  Keepass2Android 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 Keepass2Android.  If not, see <http://www.gnu.org/licenses/>.
-  */
-
-using System;
-using Android.App;
-using Android.Content;
-using Android.OS;
-using Android.Runtime;
-using Android.Util;
-
-namespace keepass2android
-{
-	/// <summary>
-	/// Manages timeout to lock the database after some idle time
-	/// </summary>
-	[Service]
-	public class TimeoutService : Service {
-		private const String Tag = "KeePass2Android Timer"; 
-		private BroadcastReceiver _intentReceiver;
-
-
-		public TimeoutService (IntPtr javaReference, JniHandleOwnership transfer)
-			: base(javaReference, transfer)
-		{
-			_binder	= new TimeoutBinder(this);
-		}
-		public TimeoutService()
-		{
-			_binder	= new TimeoutBinder(this);
-		}
-		
-		public override void OnCreate() {
-			base.OnCreate();
-			
-			_intentReceiver = new MyBroadcastReceiver(this);
-
-			IntentFilter filter = new IntentFilter();
-			filter.AddAction(Intents.Timeout);
-			RegisterReceiver(_intentReceiver, filter);
-			
-		}
-
-
-		public override void OnStart(Intent intent, int startId) {
-			base.OnStart(intent, startId);
-			
-			Log.Debug(Tag, "Timeout service started");
-		}
-		
-		private void Timeout() {
-			Log.Debug(Tag, "Timeout");
-            App.Kp2a.SetShutdown();
-			
-			NotificationManager nm = (NotificationManager) GetSystemService(NotificationService);
-			nm.CancelAll();
-			StopService(new Intent(this, typeof(CopyToClipboardService)));
-			StopSelf();
-		}
-		
-		public override void OnDestroy() {
-			base.OnDestroy();
-			
-			Log.Debug(Tag, "Timeout service stopped");
-			
-			UnregisterReceiver(_intentReceiver);
-		}
-		
-		public class TimeoutBinder : Binder 
-		{
-			readonly TimeoutService _service;
-
-			public TimeoutBinder(TimeoutService service)
-			{
-				_service = service;
-			}
-
-			public TimeoutService GetService() {
-				return _service;
-			}
-		}
-		
-		private readonly IBinder _binder;
-		
-		
-		public override IBinder OnBind(Intent intent) {
-			return _binder;
-		}
-
-		[BroadcastReceiver]
-		public class MyBroadcastReceiver: BroadcastReceiver
-		{
-			public MyBroadcastReceiver()
-			{
-				//dummy constructor required for MonoForAndroid, not called.
-				throw new NotImplementedException();
-			}
-
-			readonly TimeoutService _timeoutService;
-			public MyBroadcastReceiver (TimeoutService timeoutService)
-			{
-				_timeoutService = timeoutService;
-			}
-
-			public override void OnReceive(Context context, Intent intent) {
-				String action = intent.Action;
-				
-				if ( action.Equals(Intents.Timeout) ) {
-					_timeoutService.Timeout();
-				}
-			}
-		}
-		
-	}
-}
-
--- a/src/keepass2android/settings/AppSettingsActivity.cs
+++ b/src/keepass2android/settings/AppSettingsActivity.cs
@@ -16,122 +16,49 @@ This file is part of Keepass2Android, Copyright 2013 Philipp Crocoll. This file
  */

 using System;
-using System.Globalization;
 using Android.App;
 using Android.Content;
 using Android.OS;
-using Android.Widget;
 using Android.Preferences;
-using KeePassLib.Cryptography.Cipher;

 namespace keepass2android
 {
 	/// <summary>
-	/// Activity to configure the app
+	/// 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/NoTitleBar")]			
-	public class AppSettingsActivity : LockingClosePreferenceActivity {
-		public static bool KeyfileDefault = false;
-		
-		public static void Launch(Context ctx) {
-			Intent i = new Intent(ctx, typeof(AppSettingsActivity));
-			
-			ctx.StartActivity(i);
+	public class AppSettingsActivity : LockingPreferenceActivity
+	{
+		public static void Launch(Context ctx)
+		{
+			ctx.StartActivity(new Intent(ctx, typeof(AppSettingsActivity)));
 		}

-		protected override void OnCreate(Bundle savedInstanceState) {
+		protected override void OnCreate(Bundle savedInstanceState) 
+		{
 			base.OnCreate(savedInstanceState);
 			
 			AddPreferencesFromResource(Resource.Xml.preferences);
 			
-			Preference keyFile = FindPreference(GetString(Resource.String.keyfile_key));
-			keyFile.PreferenceChange += (sender, e) => 
+			FindPreference(GetString(Resource.String.keyfile_key)).PreferenceChange += OnRememberKeyFileHistoryChanged;
+			FindPreference(GetString(Resource.String.ShowUnlockedNotification_key)).PreferenceChange += OnShowUnlockedNotificationChanged;;
+
+			FindPreference(GetString(Resource.String.db_key)).Enabled = false;
+		}
+
+		internal static void OnRememberKeyFileHistoryChanged(object sender, Preference.PreferenceChangeEventArgs eventArgs)
+		{
+			if (!(bool)eventArgs.NewValue)
 			{
-				bool value = (bool) e.NewValue;
-				
-				if ( ! value ) {
-					FileDbHelper helper = App.Kp2a.FileDbHelper;
-					
-					helper.DeleteAllKeys();
-				}
-			};
-			
-			Database db = App.Kp2a.GetDb();
-			if ( db.Open ) {
-				Preference rounds = FindPreference(GetString(Resource.String.rounds_key));
-				rounds.PreferenceChange += (sender, e) => 
-				{
-					setRounds(App.Kp2a.GetDb(), e.Preference);
-				};
-
-				Preference defaultUser = FindPreference(GetString(Resource.String.default_username_key));
-				((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) => 
-					                                                         {
-						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();
-				};
-
-				Preference databaseName = FindPreference(GetString(Resource.String.database_name_key));
-				((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();
-						}
-					}));
-                    ProgressTask pt = new ProgressTask(App.Kp2a, this, save);
-					pt.Run();
-				};
-				
-
-
-				setRounds(db, rounds);
-				
-				Preference algorithm = FindPreference(GetString(Resource.String.algorithm_key));
-				setAlgorithm(db, algorithm);
-				
-			} else {
-				Preference dbSettings = FindPreference(GetString(Resource.String.db_key));
-				dbSettings.Enabled = false;
+				App.Kp2a.FileDbHelper.DeleteAllKeys();
 			}
-
 		}

-		private void setRounds(Database db, Preference rounds) {
-			rounds.Summary = db.KpDatabase.KeyEncryptionRounds.ToString(CultureInfo.InvariantCulture);
+		internal static void OnShowUnlockedNotificationChanged(object sender, Preference.PreferenceChangeEventArgs eventArgs)
+		{
+			var ctx = ((Preference)sender).Context;
+			ctx.StartService(new Intent(ctx, typeof(OngoingNotificationsService)));
 		}
-		
-		private void setAlgorithm(Database db, Preference algorithm) {
-
-			algorithm.Summary = CipherPool.GlobalPool.GetCipher(db.KpDatabase.DataCipherUuid).DisplayName;
-		}
-		
-
 	}

 }
--- a/src/keepass2android/settings/DatabaseSettingsActivity.cs
+++ b/src/keepass2android/settings/DatabaseSettingsActivity.cs
@@ -0,0 +1,121 @@
+/*
+This file is part of Keepass2Android, Copyright 2013 Philipp Crocoll. This file is based on Keepassdroid, Copyright Brian Pellin.
+
+  Keepass2Android 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 2 of the License, or
+  (at your option) any later version.
+
+  Keepass2Android 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 Keepass2Android.  If not, see <http://www.gnu.org/licenses/>.
+  */
+
+using System;
+using System.Globalization;
+using Android.App;
+using Android.Content;
+using Android.OS;
+using Android.Widget;
+using Android.Preferences;
+using KeePassLib.Cryptography.Cipher;
+
+namespace keepass2android
+{
+	/// <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/NoTitleBar")]			
+	public class DatabaseSettingsActivity : LockingClosePreferenceActivity 
+	{
+		public static void Launch(Context ctx)
+		{
+			ctx.StartActivity(new Intent(ctx, typeof(DatabaseSettingsActivity)));
+		}
+
+		protected 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.ShowUnlockedNotification_key)).PreferenceChange += AppSettingsActivity.OnShowUnlockedNotificationChanged;
+
+			Database db = App.Kp2a.GetDb();
+			
+			Preference rounds = FindPreference(GetString(Resource.String.rounds_key));
+			rounds.PreferenceChange += (sender, e) => SetRounds(db, e.Preference);
+
+			Preference defaultUser = FindPreference(GetString(Resource.String.default_username_key));
+			((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) => 
+				{
+					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();
+			};
+
+			Preference databaseName = FindPreference(GetString(Resource.String.database_name_key));
+			((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
+						StartService(new Intent(this, typeof(OngoingNotificationsService)));
+					}
+				}));
+                ProgressTask pt = new ProgressTask(App.Kp2a, this, save);
+				pt.Run();
+			};
+
+			SetRounds(db, rounds);
+				
+			Preference algorithm = FindPreference(GetString(Resource.String.algorithm_key));
+			SetAlgorithm(db, algorithm);
+		}
+
+		private void SetRounds(Database db, Preference rounds)
+		{
+			rounds.Summary = db.KpDatabase.KeyEncryptionRounds.ToString(CultureInfo.InvariantCulture);
+		}
+		
+		private void SetAlgorithm(Database db, Preference algorithm) 
+		{
+			algorithm.Summary = CipherPool.GlobalPool.GetCipher(db.KpDatabase.DataCipherUuid).DisplayName;
+		}
+	}
+}
+
--- a/src/keepass2android/settings/RoundsPreference.cs
+++ b/src/keepass2android/settings/RoundsPreference.cs
@@ -31,7 +31,6 @@ namespace keepass2android.settings
 	/// </summary>
 	public class RoundsPreference : DialogPreference {
 		
-		internal PwDatabase PwDatabase;
 		internal TextView RoundsView;
 		
 		protected override View OnCreateDialogView() {
@@ -40,8 +39,7 @@ namespace keepass2android.settings
 			RoundsView = (TextView) view.FindViewById(Resource.Id.rounds);
 			
 			Database db = App.Kp2a.GetDb();
-			PwDatabase = db.KpDatabase;
-			ulong numRounds = PwDatabase.KeyEncryptionRounds;
+			ulong numRounds = db.KpDatabase.KeyEncryptionRounds;
 			RoundsView.Text = numRounds.ToString(CultureInfo.InvariantCulture);

 			return view;
@@ -70,14 +68,16 @@ namespace keepass2android.settings
 					rounds = 1;
 				}

-				ulong oldRounds = PwDatabase.KeyEncryptionRounds;
+				Database db = App.Kp2a.GetDb();
+
+				ulong oldRounds = db.KpDatabase.KeyEncryptionRounds;

 				if (oldRounds == rounds)
 				{
 					return;
 				}

-				PwDatabase.KeyEncryptionRounds = rounds;
+				db.KpDatabase.KeyEncryptionRounds = rounds;

 				Handler handler = new Handler();
 				SaveDb save = new SaveDb(Context, App.Kp2a, new AfterSave(Context, handler, oldRounds, this));
@@ -108,7 +108,8 @@ namespace keepass2android.settings
 					}
 				} else {
 					DisplayMessage(_ctx);
-					_pref.PwDatabase.KeyEncryptionRounds = _oldRounds;
+
+					App.Kp2a.GetDb().KpDatabase.KeyEncryptionRounds = _oldRounds;
 				}
 				
 				base.Run();
--- a/src/keepass2android/timeout/TimeoutHelper.cs
+++ b/src/keepass2android/timeout/TimeoutHelper.cs
@@ -31,21 +31,15 @@ namespace keepass2android

 		private static class Timeout
 		{
-			private const int RequestId = 0;
 			private const long DefaultTimeout = 5 * 60 * 1000;  // 5 minutes
 			
 			private static PendingIntent BuildIntent(Context ctx)
 			{
-				Intent intent = new Intent(Intents.Timeout);
-				PendingIntent sender = PendingIntent.GetBroadcast(ctx, RequestId, intent, PendingIntentFlags.CancelCurrent);
-
-				return sender;
+				return PendingIntent.GetBroadcast(ctx, 0, new Intent(Intents.LockDatabase), PendingIntentFlags.UpdateCurrent);
 			}

 			public static void Start(Context ctx)
 			{
-
-
 				ISharedPreferences prefs = PreferenceManager.GetDefaultSharedPreferences(ctx);
 				String sTimeout = prefs.GetString(ctx.GetString(Resource.String.app_timeout_key), ctx.GetString(Resource.String.clipboard_timeout_default));

@@ -61,8 +55,6 @@ namespace keepass2android
 					return;
 				}

-				ctx.StartService(new Intent(ctx, typeof(TimeoutService)));
-
 				long triggerTime = Java.Lang.JavaSystem.CurrentTimeMillis() + timeout;
 				AlarmManager am = (AlarmManager)ctx.GetSystemService(Context.AlarmService);

@@ -76,69 +68,25 @@ namespace keepass2android

 				Kp2aLog.Log("Timeout cancel");
 				am.Cancel(BuildIntent(ctx));
-
-				ctx.StopService(new Intent(ctx, typeof(TimeoutService)));
-
 			}

 		}

-		public static void Pause(Activity act) {
-			// Record timeout time in case timeout service is killed
-			long time = Java.Lang.JavaSystem.CurrentTimeMillis();
-			
-			ISharedPreferences prefs = PreferenceManager.GetDefaultSharedPreferences(act);
-			ISharedPreferencesEditor edit = prefs.Edit();
-			edit.PutLong(act.GetString(Resource.String.timeout_key), time);
-
-			Kp2aLog.Log("Pause: start at " + time);
-			
-			EditorCompat.Apply(edit);
-			
-			if ( App.Kp2a.GetDb().Open ) {
+		public static void Pause(Activity act) 
+		{
+			if ( App.Kp2a.DatabaseIsUnlocked )
+			{
 				Timeout.Start(act);
 			}
 			
 		}
 		
-		public static void Resume(Activity act) {
-			if ( App.Kp2a.GetDb().Loaded ) {
+		public static void Resume(Activity act) 
+		{
+			if ( App.Kp2a.GetDb().Loaded ) 
+			{
 				Timeout.Cancel(act);
 			}
-			
-			
-			// Check whether the timeout has expired
-			long curTime = Java.Lang.JavaSystem.CurrentTimeMillis();
-			
-			ISharedPreferences prefs = PreferenceManager.GetDefaultSharedPreferences(act);
-			long timeoutStart = prefs.GetLong(act.GetString(Resource.String.timeout_key), -1);
-			Kp2aLog.Log("timeoutStart=" + timeoutStart);
-			// The timeout never started
-			if (timeoutStart == -1) {
-				return;
-			}
-			
-			
-			String sTimeout = prefs.GetString(act.GetString(Resource.String.app_timeout_key), act.GetString(Resource.String.clipboard_timeout_default));
-			long timeout;
-			if (!long.TryParse(sTimeout, out timeout) || (timeout == -1))
-			{
-				Kp2aLog.Log("exit with timeout=" + timeout + "/"+sTimeout);
-				// We are set to never timeout
-				return;
-			}
-
-			long diff = curTime - timeoutStart;
-			if (diff >= timeout)
-			{
-				// We have timed out
-				Kp2aLog.Log("Shutdown due to " + diff + ">=" + timeout);
-				App.Kp2a.SetShutdown();
-			}
-			else
-			{
-				Kp2aLog.Log("No shutdown due to " + diff + "<" + timeout);
-			}
 		}

 		static bool IocChanged(IOConnectionInfo ioc, IOConnectionInfo other)
@@ -148,11 +96,10 @@ namespace keepass2android
 		}
 		
 		public static bool CheckShutdown(Activity act, IOConnectionInfo ioc) {
-			if ((  App.Kp2a.GetDb().Loaded && (App.Kp2a.IsShutdown() || App.Kp2a.GetDb().Locked) ) 
+			if ((  !App.Kp2a.DatabaseIsUnlocked ) 
 			    || (IocChanged(ioc, App.Kp2a.GetDb().Ioc))) //file was changed from ActionSend-Intent
 			{
-				act.SetResult(KeePass.ExitLock);
-				act.Finish();
+				App.Kp2a.LockDatabase();
 				return true;
 			}
 			return false;