How can I alter a MenuItem on the Options Menu on Android?
For this type of operation I usually choose not to alter the menu items, but just hide the ones you don’t need: @Override public boolean onPrepareOptionsMenu(Menu menu) { super.onPrepareOptionsMenu(menu); menu.findItem(R.id.start).setVisible(!isStarted); menu.findItem(R.id.stop).setVisible(isStarted); return true; }