Why is my onBackup() method for my BackupAgentHelper not being called?

Question

I've read through the documentation and other questions, but I guess I'm missing something. My BackupAgent's onCreate is being called, but not its onBackup, even when I call adb bmgr backup <package> and then adb shell bmgr run from command line. What part of the equation am I missing?

MyBackupAgent class:

public class MyBackupAgent extends BackupAgentHelper {

    public MyBackupAgent() {
        Log.d("GradeTracker.MyBackupAgent", "onCreate called");
        String str = DBAdapter.DATABASE_NAME;
        FileBackupHelper myDb = new FileBackupHelper(this, "../databases/" + str);
        addHelper(DBAdapter.DATABASE_NAME , myDb);

    }

    @Override
    public void onBackup(ParcelFileDescriptor oldState, BackupDataOutput data,
         ParcelFileDescriptor newState) throws IOException {

        Log.d("GradeTracker.MyBackupAgent", "onBackup called");

            synchronized (DBAdapter.dbBackupLockObject) {
                    super.onBackup(oldState, data, newState);
            }
    }

    @Override
    public void onRestore(BackupDataInput data, int appVersionCode,
                    ParcelFileDescriptor newState) throws IOException {

            Log.d("GradeTracker.MyBackupAgent", "onRestore called");

            synchronized (DBAdapter.dbBackupLockObject) {
                    super.onRestore(data, appVersionCode, newState);
            }
    }
}

In my Manifest:

<application
        android:allowBackup="true"
        android:backupAgent="MyBackupAgent"
...
<meta-data android:name="com.google.android.backup.api_key" 
            android:value="<my_key>" />

I only registered my app with Android Backup Services a few hours ago, but it didn't say I'd have to wait. What am I missing?

Answer 1

Turns out the code I thought I was running in onCreate() I was actually running in the constructor. I don't even have an onCreate. >.<