Android - Clear task flag not working for PendingIntent

Question

I have a task stack of A > B > C. I am currently on C, and then I press the home button. I get a notification with the intent to take me to Activity A. I press the notificat

Answer 1

I created a demo project as your description and it works just as what you want.

I don't know how do you get the notification, so in my project I use a BroadcastReceiver to get a Broadcast and then show the Notification in the onReceive() method of the Receiver. I think you can compare my demo with your project to find the problem. BTW, my test is performed under API 16.

Here is my demo: https://github.com/leoguo123/AndroidDemo

In the repository:

Test project contains 3 Activity(A > B > C) and it can show the Notification when receive a proper broadcast. SendBroadcast project is responsible for sending the broadcast.

The code for generating the notification:

    public class MyBroadcastReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        showNotification(context);
    }

    private void showNotification(Context context) {
        Intent intent = new Intent(context, ActivityA.class);
        intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
                | Intent.FLAG_ACTIVITY_SINGLE_TOP
                | Intent.FLAG_ACTIVITY_NEW_TASK);
        NotificationManager nmr = (NotificationManager) context
                .getSystemService(Context.NOTIFICATION_SERVICE);
        PendingIntent pi = PendingIntent.getActivity(context, 0, intent, 0);
        Notification.Builder builder = new Notification.Builder(context);
        builder.setContentTitle("Open A with B and C being closed");
        builder.setContentText("Open A with B and C being closed");
        builder.setSmallIcon(R.drawable.ic_launcher);
        builder.setContentIntent(pi);
        builder.setAutoCancel(true);
        Notification nt = builder.build();
        nmr.notify(0, nt);
    }
}