Android: how to notify Activity when Fragments views are ready?

Question

I\'m using Google Maps API V2 in an activity wih drop down navigation where the map is on the second position.

I\'m adding the map pragmatically like:

Answer 1

In addition to Kirk's answer: since public void onAttach(Activity activity) is deprecated you can now simply use:

@Override
public void onAttach(Context context) {
    super.onAttach(context);

    Activity activity;

    if (context instanceof Activity){

        activity=(Activity) context;

        try {
            this.mListener = (OnCompleteListener)activity;
        } catch (final ClassCastException e) {
            throw new ClassCastException(activity.toString() + " must implement OnCompleteListener");
        }
    }
}

The rest remains the same... One might want to use (Fragment sender) as a parameter though and always pass this.