|  | Support Libraries for Android. | 
|  |  | 
|  | This SDK component contains static libraries providing access to newer APIs | 
|  | on older platforms and various helper classes. | 
|  |  | 
|  | To use those libraries, simply copy them as static libraries into your project. | 
|  |  | 
|  | Each library is called v<api>, indicating the minimum API level that they require. | 
|  |  | 
|  |  | 
|  | *** V4 *** | 
|  |  | 
|  | v4/android-support-v4.jar contains: | 
|  | - Fragment API. New in API 11 (3.0 - Honeycomb). http://developer.android.com/reference/android/app/Fragment.html | 
|  | - Loader API. New in API 11 (3.0 - Honeycomb). http://developer.android.com/reference/android/app/LoaderManager.html | 
|  | - CursorAdapter / ResourceCursorAdapter / SimpleCursorAdapter. These are the API 11 versions. | 
|  | - MenuCompat allows calling MenuItem.setShowAsAction which only exists on API 11. | 
|  |  | 
|  | v4/src/ is the source code for the compatibility library | 
|  | v4/samples/ provides a sample app using the library. | 
|  |  | 
|  |  | 
|  | *** V13 *** | 
|  |  | 
|  | v13/android-support-v13.jar provides the same features as v4, plus: | 
|  | - FragmentPagerAdapter: Implementation of PagerAdapter that represents each page as a Fragment. | 
|  |  | 
|  | v13/src/ is the source code for the compatibility library, not including the v4 source | 
|  | v13/samples/ provides a sample app using the library. |