Triggering events after Menu closes

Often you need to check something and/or take action once a menu closes. The examples on this topic seem sparse.

One way to achieve this is to use methods of the Activity class:
startActivityForResult(Intent, int)
and a corresponding:
onActivityResult(int requestCode, int resultCode, Intent data)
The requestCode is an int you define to correlate between activities...

Here's an example:

@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.preferences:
// Launch Preference activity
Intent i = new Intent(HelloPreferences.this, Preferences.class);
startActivityForResult(i,REQUEST_CODE_PREFERENCE);
break;
}
return true;
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);

// do something here when menu closes
}