Question

How to close progress dialog when back button is pressed ?

Answer 1

Here is the solution.

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_BACK) {
       dialog.dismiss();
        return true;
    }
    return super.onKeyDown(keyCode, event);
}

or also you can dismiss dialog in onPause method of activity.