@Override
public boolean onCreateOptionsMenu(Menu menu) {
    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.action_bar_menu, menu);
    return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
        case R.id.action_cp:
            return true;
        case R.id.action_settings:
            return true;
        case R.id.action_used_libraries:
            return true;
        case R.id.action_help_and_feedback:
            return true;
        default:
            return super.onOptionsItemSelected(item);
    }
}