我会用这个注销GCM服务和Receiver：

  public static void unregisterGCMComponents（Context context）
 {
 int flag = PackageManager.COMPONENT_ENABLED_STATE_DISABLED; 

 ComponentName component1 = new ComponentName（context，GCMIntentService.class）; 
 context.getPackageManager（）。setComponentEnabledSetting（component1，flag，PackageManager.DONT_KILL_APP）; 

 ComponentName component2 = new ComponentName（context，GCMBroadcastReceiver.class）; 
 context.getPackageManager（）。setComponentEnabledSetting（component2，flag，PackageManager.DONT_KILL_APP）; 





 $ b因此，你可以从你的启动器类或应用程序类中调用此方法像这样： 

  if（！notification_flag）// push设置为ON 
 unregisterGCMComponents（this）; 
 
 

I am integrating GCM notification, this is working fine. Now i am adding toggle button of on/off notification.I stops/start service but no success. Please suggest how to manage service and receiver? my code is below.
public class GCMIntentService extends GCMBaseIntentService {

private static final String TAG = "GCMIntentService";

public GCMIntentService() {
    super("123456789123");
}

/**
 * Method called on device registered
 **/
@Override
protected void onRegistered(Context context, String registrationId) {
    Log.i(TAG, "Device registered: regId = " + registrationId); 
    ZunaCard.displayMessage(context,
            "Your device registred with GCM");
    ZunaCard.saveDeviceId(registrationId);
}

/**
 * Method called on device unRegistred
 * */
@Override
protected void onUnregistered(Context context, String registrationId) {
    Log.i(TAG, "Device unregistered");
    ZunaCard.displayMessage(context,
            "From GCM: device successfully unregistered!");
}

/**
 * Method called on Receiving a new message
 * */
@Override
protected void onMessage(Context context, Intent intent) {
    Log.i(TAG, "Received message");
     String msgNotif = intent.getExtras().getString("message");
      if (!TextUtils.isEmpty(msgNotif)) {
         System.out.println("Called onMessage>>>>>>>>>>>>>>>>>"+msgNotif);
         generateNotification(context, ""+msgNotif);    
    }



}

/**
 * Method called on receiving a deleted message
 * */
@Override
protected void onDeletedMessages(Context context, int total) {
    Log.i(TAG, "Received deleted messages notification");
    String message = "From GCM: server deleted %1$d pending messages!";
    ZunaCard.displayMessage(context, message);
    // notifies user
    generateNotification(context, message);
}

/**
 * Method called on Error
 * */
@Override
public void onError(Context context, String errorId) {
    Log.i(TAG, "Received error: " + errorId);
    ZunaCard.displayMessage(context, "From GCM: error (%1$s). "
            + errorId);
}

@Override
protected boolean onRecoverableError(Context context, String errorId) {
    // log message
    Log.i(TAG, "Received recoverable error: " + errorId);
    ZunaCard.displayMessage(context,
            "From GCM: recoverable error (%1$s). " + errorId);
    return super.onRecoverableError(context, errorId);
}

/**
 * Issues a notification to inform the user that server has sent a message.
 */
private static void generateNotification(Context context, String message) {

    System.out.println("Called generateNotification>>>>>>>>>>>>>"+message);
    NotificationManager notificationManager = (NotificationManager) context
            .getSystemService(Context.NOTIFICATION_SERVICE);
    // Notification notification = new Notification(icon, message, when);

    String title = context.getString(R.string.app_name);

    NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(
            context)
            .setSmallIcon(R.drawable.app_icon)
            .setContentTitle(title)

            .setStyle(
                    new NotificationCompat.BigTextStyle().bigText(message))
            .setContentText(message);

    Intent notificationIntent = new Intent(context,
            SplashActivity.class);
    PendingIntent intent = PendingIntent.getActivity(context, 0,
            notificationIntent, PendingIntent.FLAG_CANCEL_CURRENT);

    mBuilder.setContentIntent(intent);

    Notification notification = mBuilder.build();
    notification.flags |= Notification.FLAG_AUTO_CANCEL;

    notification.defaults |= Notification.DEFAULT_SOUND;
    notification.defaults |= Notification.DEFAULT_VIBRATE;  
    notificationManager.notify(0, notification);

}}

and receiver code:
public class GCMReceiver extends GCMBroadcastReceiver {
@Override
protected String getGCMIntentServiceClassName(Context context) {
    return context.getString(R.string.gcm_service_class);
}}




I would use this to Unregister the GCM service and Receiver:
public static void unregisterGCMComponents(Context context)
{
    int flag = PackageManager.COMPONENT_ENABLED_STATE_DISABLED;

    ComponentName component1 = new ComponentName(context, GCMIntentService.class);
    context.getPackageManager().setComponentEnabledSetting(component1, flag,    PackageManager.DONT_KILL_APP);

    ComponentName component2 = new ComponentName(context, GCMBroadcastReceiver.class);
    context.getPackageManager().setComponentEnabledSetting(component2, flag, PackageManager.DONT_KILL_APP);
}

So, you can call this method from your launcher class or "Application" class like this :
if(!notification_flag) //push is set to ON
    unregisterGCMComponents(this);