finishAndRemoveTask() available on API 21

Question

I would terminate my app and cancel it from the list of recent task.

finishAndRemoveTask() is available only on API 21.

What should I use on API lower than 21??

Answer 1

Make an intent to the first activity in the stack and finish the current activity:

Intent intent  = new Intent(this, FirstActivity.class);
intent.putExtra(EXTRA_FINISH, true);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);        
startActivity(intent);
finish();

And, in the onResume method of the FirstActivity, something like this to finish the last activity in the stack (and hopefully removing the app from the recent apps list):

if (getExtras() != null && getIntentExtra(EXTRA_FINISH, false)) {
   finish();
}