import android.content.Context;
import android.os.RemoteException;
import android.os.ServiceManager;
+import android.util.Log;
/**
* BackupManager is the interface to the system's backup service.
* @hide pending API solidification
*/
public class BackupManager {
+ private static final String TAG = "BackupManager";
+
private Context mContext;
- private IBackupManager mService;
+ private static IBackupManager sService;
- /**
- * Defined backup transports understood by {@link IBackupManager.selectBackupTransport}.
- */
- public static final int TRANSPORT_LOCAL = 1;
- public static final int TRANSPORT_GOOGLE = 2;
+ private static void checkServiceBinder() {
+ if (sService == null) {
+ sService = IBackupManager.Stub.asInterface(
+ ServiceManager.getService(Context.BACKUP_SERVICE));
+ }
+ }
/**
* Constructs a BackupManager object through which the application can
*/
public BackupManager(Context context) {
mContext = context;
- mService = IBackupManager.Stub.asInterface(
- ServiceManager.getService(Context.BACKUP_SERVICE));
}
/**
* {@link android.app.BackupAgent} subclass will be scheduled when you call this method.
*/
public void dataChanged() {
- if (mService != null) {
+ checkServiceBinder();
+ if (sService != null) {
+ try {
+ sService.dataChanged(mContext.getPackageName());
+ } catch (RemoteException e) {
+ Log.d(TAG, "dataChanged() couldn't connect");
+ }
+ }
+ }
+
+ /**
+ * Convenience method for callers who need to indicate that some other package
+ * needs a backup pass. This can be relevant in the case of groups of packages
+ * that share a uid, for example.
+ *
+ * This method requires that the application hold the "android.permission.BACKUP"
+ * permission if the package named in the argument is not the caller's own.
+ */
+ public static void dataChanged(String packageName) {
+ checkServiceBinder();
+ if (sService != null) {
try {
- mService.dataChanged(mContext.getPackageName());
+ sService.dataChanged(packageName);
} catch (RemoteException e) {
+ Log.d(TAG, "dataChanged(pkg) couldn't connect");
}
}
}
*/
public IRestoreSession beginRestoreSession(String transport) {
IRestoreSession binder = null;
- if (mService != null) {
+ checkServiceBinder();
+ if (sService != null) {
try {
- binder = mService.beginRestoreSession(transport);
+ binder = sService.beginRestoreSession(transport);
} catch (RemoteException e) {
+ Log.d(TAG, "beginRestoreSession() couldn't connect");
}
}
return binder;
static final String PREF_KEY = "pref";
static final String FILE_NAME = "file.txt";
+ BackupManager sBm = new BackupManager(this);
+
Test[] mTests = new Test[] {
new Test("Show File") {
void run() {
output.close();
}
}
- BackupManager bm = new BackupManager(BackupTestActivity.this);
- bm.dataChanged();
+ sBm.dataChanged();
}
},
new Test("Clear File") {
output.close();
}
}
- BackupManager bm = new BackupManager(BackupTestActivity.this);
- bm.dataChanged();
+ sBm.dataChanged();
}
},
new Test("Poke") {
void run() {
- BackupManager bm = new BackupManager(BackupTestActivity.this);
- bm.dataChanged();
+ sBm.dataChanged();
}
},
new Test("Show Shared Pref") {
SharedPreferences.Editor editor = prefs.edit();
editor.putInt(PREF_KEY, val+1);
editor.commit();
- BackupManager bm = new BackupManager(BackupTestActivity.this);
- bm.dataChanged();
+ sBm.dataChanged();
}
},
new Test("Backup Helpers") {