Android - openOptionsMenu doesn't work in onCreate

10
votes

Is there any other way to call openOptionsMenu after activity is displayed without using something like this:

new Handler().postDelayed(new Runnable() {
            public void run() {
                openOptionsMenu();
            }
        }, 1000);

Reference: http://groups.google.com/group/android-beginners/browse_frm/thread/b10a8ea840c07725/1ce48bb147a3ed1a?#1ce48bb147a3ed1a

EDIT: I would appreciate example like this:

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // Now I guess something like Window.Callback.onAttachedToWindow(...) should be done?
}
2
android
That solution is really quite fragile – Casebash

2 Answers

21
votes

I looked at Activity again, and it has had the method onAttachedToWindow, inherited from Window.Callback, since API level 5. If you are using this level, then you simply have to override this method in your Activity. 

@Override
public void onAttachedToWindow() {
    super.onAttachedToWindow();
    openOptionsMenu();
}

If you are using a version prior to 5, then you have to override the onAttachedToWindow method in View instead. This is very easy if your View is created in code. If it is created in XMl, then it isn't that much harder - you should find the instructions here helpful.

-1
votes

My solution

//Open menu manually from code 
    Timer timing = new Timer();
    timing.schedule(new TimerTask() {

                /**
                 * {@inheritDoc}
                 */
                @Override
                public void run() {

                    runOnUiThread(new Runnable() {

                        @Override
                        public void run() {
                            openOptionsMenu();
                        }
                    });

                }
            }, 1000);