Can't use backup with Android Backup Service

Question

I'm trying to integrate the Backup Service with my app. It's all working right up to the moment I make the call to:

BackupManager bm = new BackupManager(context);
bm.dataChanged();

I see the following in my Logcat:

W/BackupManagerService﹕ dataChanged but no participant pkg='com.company.app' uid=10102

Here's my implementation of BackupAgentHelper https://gist.github.com/cloakedninjas/fe135cb04bf324e26b0c if it helps...

public class CordovaBackupAgentHelper extends BackupAgentHelper {
    static final String FILE_NAME = "gameData.json";
    static final String FILES_BACKUP_KEY = "data_file";

    @Override
    public void onCreate() {
        FileBackupHelper helper = new FileBackupHelper(this, FILE_NAME);
        addHelper(FILES_BACKUP_KEY, helper);
    }

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

        Log.d(Backup.LOG_TAG, "Backup requested: " + oldState.toString() + " | "  + newState.toString());

        synchronized (Backup.sDataLock) {
            Log.d(Backup.LOG_TAG, "Backup requested: " + data.toString());
            super.onBackup(oldState, data, newState);
        }
    }

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

        synchronized (Backup.sDataLock) {
            Log.d(Backup.LOG_TAG, "Restore given: " + data.toString());
            super.onRestore(data, appVersionCode, newState);
        }
    }
}

I never see my log entry Backup requested. I've checked my Android manifest has the following attribute android:backupAgent="CordovaBackupAgentHelper"

Can anyone shed any light on this?

Update

I've noticed if I change my Manifest to have android:backupAgent="FooBar" I see no errors about undeclared class FooBar, but still see dataChanged but no participant pkg when attempting a backup. So my guess is the error is related to not being able to find my backup agent.

Answer 1

So my issue was not putting the attributes onto the correct element :(

I had:

<manifest android:backupAgent="com.cloakedninjas.cordova.plugins.BackupAgentHelper" ...

Instead of:

<application android:backupAgent="com.cloakedninjas.cordova.plugins.BackupAgentHelper" ...