touch-handler.java

public void onTouchDrawer(final int position) {
    if (lastMenu == position) return;

    switch (lastMenu = position) {
        case 1:
            openFragment(new HomeFragment());
            break;
        case 2:
            openFragment(new FlightsFragment());
            break;
        case 3:
            openFragment(new HotelsFragment());
            break;
        default:
    }
}