Android Support Library

v4 <sdk>/extras/android/support/v4/ API4以上

  app components:
    Fragment,NotificationCompat,LocalBroadcastManager
  user interface:
    ViewPager,PagerTitleStrip,PagerTabStrip,DrawerLayout,SlidingPaneLayout

v7 <sdk>/extras/android/support/v7/appcompat/API7以上

  v7 appcompat library
    key classes:ActionBar,AppCompatActivity,AppCompatDialog,ShareAcionProvider
  v7 cardview library
    are used extensively in layouts for TV apps.
  v7 gridlayout library
  v7 mediarouter library
  v7 palette library 
    extract prominent colors from an image.
  v7 recyclerview library
    like ListView,but more powerful than ListView.
  v7 Preference Support Library 
    add more powerful preference objects.

v8 API8以上

  v8 renderscript library
  

v13 API13以上

  It adds support for the Fragment user interface pattern with the (FragmentCompat) class and additional fragment support classes.    

v14

  v14 Preference Support Library

v17 for TV

  provides APIs for providing preference interfaces on TV devices.

v17 Leanback Library

  package provides APIs to support building user interfaces on TV devices. It provides a number of important widgets for TV apps.


Annotations Support Library
  adding annotation metadata to your apps.


Design Support Library
  adding material design components and patterns to your apps.


Custom Tabs Support Library
  adding and managing custom tabs in your apps.


Percent Support Library
  adding and managing percentage based dimensions in your app.


App Recommendation Support Library for TV
  adding content recommendations in your app running on TV devices.