Added option to kill the application process from the password activity

src/keepass2android/PasswordActivity.cs

@@ -197,7 +197,8 @@ namespace keepass2android
 		}
 
 		internal AppTask AppTask;
-		
+		private bool _killOnDestroy;
+
 		protected override void OnCreate(Bundle savedInstanceState)
 		{
 			base.OnCreate(savedInstanceState);
@@ -280,6 +281,10 @@ namespace keepass2android
 					App.Kp2a.GetFileStorage(_ioConnection)
 					   .PrepareFileUsage(new FileStorageSetupInitiatorActivity(this, OnActivityResult, null), _ioConnection, 0, false);
 				};
+
+
+			
+			
 			
 			/*CheckBox checkBox = (CheckBox) FindViewById(Resource.Id.show_password);
 			// Show or hide password
@@ -459,6 +464,24 @@ namespace keepass2android
 		{
 			base.OnResume();
 
+			View killButton = FindViewById(Resource.Id.kill_app);
+			if (PreferenceManager.GetDefaultSharedPreferences(this)
+								 .GetBoolean(GetString(Resource.String.show_kill_app_key), false))
+			{
+				killButton.Click += (sender, args) =>
+				{
+					_killOnDestroy = true;
+					Finish();
+
+				};
+				killButton.Visibility = ViewStates.Visible;
+
+			}
+			else
+			{
+				killButton.Visibility = ViewStates.Gone;
+			}
+
 			MakePasswordMaskedOrVisible();
 
 			// OnResume is run every time the activity comes to the foreground. This code should only run when the activity is started (OnStart), but must
@@ -520,6 +543,13 @@ namespace keepass2android
 			}
 			SetEditText(Resource.Id.pass_keyfile, _keyFile);
 		}
+
+		protected override void OnDestroy()
+		{
+			base.OnDestroy();
+			if (_killOnDestroy)
+				Process.KillProcess(Process.MyPid());
+		}
 		
 		/*
 	private void errorMessage(CharSequence text)

src/keepass2android/Resources/layout-v14/password.xml

@@ -96,10 +96,16 @@
         android:layout_width="fill_parent"
         android:layout_height="wrap_content"
         android:layout_below="@id/keyfileLine" />
+	<Button
+        android:id="@+id/kill_app"
+        android:text="@string/kill_app_label"
+        android:layout_width="fill_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@id/pass_ok" />
     <CheckBox
         android:id="@+id/enable_quickunlock"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_below="@id/pass_ok"
+        android:layout_below="@id/kill_app"
         android:text="@string/enable_quickunlock" />
 </RelativeLayout>

src/keepass2android/Resources/layout/password.xml

@@ -84,10 +84,16 @@
         android:layout_width="fill_parent"
         android:layout_height="wrap_content"
         android:layout_below="@id/pass_keyfile" />
+	<Button
+        android:id="@+id/kill_app"
+        android:text="@string/kill_app_label"
+        android:layout_width="fill_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@id/pass_ok" />
     <CheckBox
         android:id="@+id/enable_quickunlock"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_below="@id/pass_ok"
+        android:layout_below="@id/kill_app"
         android:text="@string/enable_quickunlock" />
 </RelativeLayout>

src/keepass2android/Resources/values/config.xml

@@ -46,6 +46,7 @@
     <string name="algorithm_key">algorithm</string>
     <string name="app_key">app</string>
     <string name="app_timeout_key">app_timeout_key</string>
+	<string name="show_kill_app_key">show_kill_app_key</string>
     <string name="clipboard_timeout_key">clip_timeout_key</string>
     <string name="db_key">db</string>
     <string name="rounds_key">rounds</string>

src/keepass2android/Resources/values/strings.xml

@@ -19,6 +19,9 @@
   <string name="short_app_name_nonet">KP2A Offline</string>
   <string name="app_timeout">Application timeout</string>
   <string name="app_timeout_summary">Time before locking database when the application is inactive.</string>
+  <string name="kill_app_label">Kill application process</string>
+  <string name="show_kill_app">Close-Button</string>
+  <string name="show_kill_app_summary">Show a button in password screen to kill the application process (for paranoid users)</string>
   <string name="application">Application</string>
   <string name="application_settings">Application settings</string>
 	

src/keepass2android/Resources/xml/preferences.xml

@@ -84,6 +84,12 @@
 				android:summary="@string/remember_keyfile_summary"
 				android:defaultValue="@bool/keyfile_default"/>
 
+			<CheckBoxPreference
+				android:key="@string/show_kill_app_key"
+				android:title="@string/show_kill_app"
+				android:summary="@string/show_kill_app_summary"
+				android:defaultValue="false"/>
+
 		</PreferenceScreen>
 		<PreferenceScreen
 	  android:key="@string/display_prefs_key"