How to detect that the DrawerLayout started opening?

Question

So I have tabs that I want to hide when the Navigation Drawer starts opening. The code I have hides them when it finished opening, but it\'s not what I want

Answer 1

fookwood answer did not work for me but slight modification in the if statment did the trick)

ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this, navigationDrawerLayout, topToolbar,
                R.string.open_drawer, R.string.close_drawer) {
            @Override public void onDrawerStateChanged(int newState) {
                if (newState == DrawerLayout.STATE_SETTLING && !navigationDrawerLayout.isDrawerOpen(navigationDrawerView)) {
                    // this where Drawer start opening
}