Android Support Package r7 发布

Revisions

The sections below provide notes about successive releases of the Support Package, as denoted by revision number.

Support Package, revision 7 (March 2012)

Changes for v4 support library:

Added ShareCompat, which provides helper classes for sending and receiving content for social sharing applications, including new metadata for attributing shared data to the source app. This class also provides compatible integration with the new ShareActionProvider in Android 4.0.
Added NavUtils and TaskStackBuilder to provide support for implementing theAndroid Design guidelines for navigation. These additions include a way to implement the action bar's Up button across versions. For an example implementation of this pattern, see the AppNavigation sample in (<sdk>/samples/<platform>/AppNavigation).
Added NotificationCompat.Builder to provide a compatibility implementation of Android 3.0's Notification.Builder helper class for creating standardized system notifications.