code: public static boolean isSupportVIVOPush(Context context) {
      com.vivo.push.PushClient client = com.vivo.push.PushClient.getInstance(context);
      if (null == client) {
        return false;
      }
      return client.isSupport();
    }
docs: current device support VIVO push or not.
  
  @param context
  @return