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added in version 22.1.0

Support classes to access some of the package features introduced after API level 13 in a backwards compatible fashion.


FragmentCompat.OnRequestPermissionsResultCallback This interface is the contract for receiving the results for permission requests. 
FragmentCompat.PermissionCompatDelegate Customizable delegate that allows delegating permission related compatibility methods to a custom implementation. 


ActivityCompat Helper for accessing features in Activity in a backwards compatible fashion. 
FragmentCompat Helper for accessing features in Fragment in a backwards compatible fashion. 
FragmentPagerAdapter Implementation of PagerAdapter that represents each page as a Fragment that is persistently kept in the fragment manager as long as the user can return to the page. 
FragmentStatePagerAdapter Implementation of PagerAdapter that uses a Fragment to manage each page. 
FragmentTabHost Version of FragmentTabHost that can be used with the platform Fragment APIs. 
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