Unable to clear all previous activities and jump out apps

Question

i called

Intent intent = new Intent(activity, Main_AllLatestNews.class);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
activity.startActivity(intent);

However, when i click back button in Main_AllLatestNews class, it should be go out of apps instead of back to previous activity.

Answer 1

In Activity D use code as shown below

 public boolean onKeyDown(int keyCode, KeyEvent event) {
     if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) {
        // do something on back.
        this.finish();
        Intent i = new Intent(Dactivity.this, AActivity.class);
        i.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        startActivity(i);
        return true;
    }

    return super.onKeyDown(keyCode, event);
}