AppCompat v7 Toolbar onOptionsItemSelected not called

Question

I changed from the original ActionBar to the AppCompat Toolbar and setSupportActionBar(toolbar). When I am using getSupportActionBar() and setDisplayHomeAsUpEnabled(true) fo

Answer 1

One thing that wasn't mentioned:
If you build the options menu dynamically in onCreateOptionsMenu and return null there, the up button in the action bar will not work.
Works fine if you return the Menu parameter without adding anything into it.

Tested on emulator API 19