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To handle an options menu item click in an activity, we usually should override method named:
For example, suppose that in a XML file (res/menu/menu_main.xml as an example), where menu items are described, we have such item:
...
android:id="@+id/action_settings" android:orderInCategory="100" android:title="@string/menu_action_settings" app:showAsAction="never" /> ... Attribute ''app:showAsAction'' shows when and how this item should appear as an action item in the app bar. What value ''never'' in this attribute means?
An overridden method onCreateOptionsMenu in an Activity returns boolean value. What does this value mean?
In application theme style, value statusBarColor (
In application theme style, flag windowDrawsSystemBarBackgrounds (