How can I change Action Bar actions dynamically?

Question

I have an Activity with ActionBar and tab navigation. I am using the split mode, so the tabs are at the top and actions are in the bottom bar. How can I dynamically change t

Answer 1

Activity.invalidateOptionsMenu() requires API Level 11. Use the Support library version of it supportInvalidateOptionsMenu().

AppCompatActivity activity = (AppCompatActivity) getActivity();
activity.supportInvalidateOptionsMenu();