1 <HTML> 2 <BODY> 3 <p>Contains the backup and restore functionality available to 4 applications. If a user wipes the data on their device or upgrades to a new Android-powered 5 device, all applications that have enabled backup can restore the user's previous data when the 6 application is reinstalled.</p> 7 8 <p>For more information, see the <a 9 href="{@docRoot}guide/topics/data/backup.html">Data Backup</a> guide.</p> 10 {@more} 11 12 <p>All backup and restore operations are controlled by the {@link 13 android.app.backup.BackupManager}. Each application that would 14 like to enable backup and preserve its data on remote strage must implement a 15 backup agent. A backup agent can be built by extending either {@link android.app.backup.BackupAgent} 16 or {@link android.app.backup.BackupAgentHelper}. The {@link 17 android.app.backup.BackupAgentHelper} class provides a wrapper around {@link 18 android.app.backup.BackupAgent} that simplifies the procedures to implement a backup agent by 19 employing backup helpers such as {@link android.app.backup.SharedPreferencesBackupHelper} and 20 {@link android.app.backup.FileBackupHelper}.</p> 21 22 <p>The backup APIs let applications:</p> 23 <ul> 24 <li>Perform backup of arbitrary data to remote storage</li> 25 <li>Easily perform backup of {@link android.content.SharedPreferences} and files</li> 26 <li>Restore the data saved to remote storage</li> 27 </ul> 28 29 </BODY> 30 </HTML> 31
