An overridden method onCreateOptionsMenu in an Activity returns boolean value. What does this value mean?
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: ... <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?
To handle an options menu item click in an activity, we usually should override method named:
Working with Custom View. To define custom attributes, we can add <declare -styleable> resources to our project. It is customary to put these resources into a file:
Working with Custom View. Once you define the custom attributes, you can use them in layout XML files just like built -in attributes. The only difference is that your custom attributes belong to a different namespace. Instead of belonging to the http://schemas.android.com/apk/res/android namespace, they belong to:
What is a correct part of an Implicit Intent for sharing data implementation?
