Changing options menu icon in actionbar depending on an open Fragment
问题 I have this item in my options menu: <item android:id="@+id/opt_mnu_action" android:icon="@android:drawable/ic_dialog_info" android:orderInCategory="1" android:showAsAction="ifRoom" android:title="New"> </item> The menu itself created in main FragmentActivity. I want to change this item's icon programmatically depending on the open Fragment and, obviously, have different actions when the user hits this button. I tried several things to do that, but nothing worked. The last thing I tried was