I started writing an andoid app game but am already struggling with the navigation. I have a Main Activity that is also the defaultNavHost of my navigation. It displays my Main Fragment, which has 3 buttons. Each should be leading to a different Fragment but that is where the problem occurs. When clicking any of… Read More Button does not have a NavController set

@Override public boolean onKeyUp(int keyCode, KeyEvent event) { … return false; } Once the above method is added to an activity, the back button stops working but the other two buttons on the navigation bar – home and overview – still work perfectly. Could anyone shed some light on this? >Solution : Because You’re always… Read More Android back button not working after onKeyUp() is overridden