BackupAgent.java

package com.rubika.aotalk;

import android.annotation.SuppressLint;
import android.app.backup.BackupAgentHelper;
import android.app.backup.SharedPreferencesBackupHelper;

@SuppressLint("NewApi")
public class BackupAgent extends BackupAgentHelper {
	private static String PREFS_BACKUP_KEY = "prefs";

	@Override
	public void onCreate() {
		super.onCreate();
		String defaultPrefsFilename = getPackageName() + "_preferences";
        SharedPreferencesBackupHelper helper = new SharedPreferencesBackupHelper(this, defaultPrefsFilename);
        addHelper(PREFS_BACKUP_KEY, helper);
	}
}