ViewPager.DecorView
@Retention(value = RetentionPolicy.RUNTIME)
@Target(value = ElementType.TYPE)
@Inherited
public annotation ViewPager.DecorView
Annotation which allows marking of views to be decoration views when added to a view pager.
Views marked with this annotation can be added to the view pager with a layout resource. An example being PagerTitleStrip.
You can also control whether a view is a decor view but setting isDecor on the child's layout params.