+ Activity informing when app was killed while copy notifications were on

src/keepass2android/AppKilledInfo.cs

@@ -0,0 +1,46 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+using Android.App;
+using Android.Content;
+using Android.OS;
+using Android.Runtime;
+using Android.Views;
+using Android.Widget;
+
+namespace keepass2android
+{
+	[Activity(Label = AppNames.AppName)]
+	public class AppKilledInfo : Activity, IDialogInterfaceOnDismissListener
+	{
+		protected override void OnCreate(Bundle bundle)
+		{
+			base.OnCreate(bundle);
+			//as we expect this to happen only rarely (having a foreground service running when unlocked),
+			//we don't try to handle this better
+			//But at least explain to the user what happened!
+			((NotificationManager)GetSystemService(Context.NotificationService)).CancelAll();
+			AlertDialog.Builder b = new AlertDialog.Builder(this);
+			b.SetMessage(Resource.String.killed_by_os);
+			b.SetPositiveButton(Resource.String.ok, delegate
+			{
+				Intent i = new Intent(this, typeof(FileSelectActivity));
+				i.AddFlags(ActivityFlags.ClearTask | ActivityFlags.NewTask);
+				StartActivity(i);
+
+			});
+			b.SetNegativeButton(Resource.String.cancel, delegate { });
+			b.SetTitle(AppNames.AppName);
+			b.SetOnDismissListener(this);
+			var dialog = b.Create();
+			dialog.Show();
+		}
+
+		public void OnDismiss(IDialogInterface dialog)
+		{
+			Finish();
+		}
+	}
+}