public void checkNewApp(final UpdateCallback callback) {
        if (callback == null) {
            return;
        }
        callback.onBefore();

        if (DownloadService.isRunning || UpdateDialogFragment.isShow) {
            callback.onAfter();
// 只要点击下载，设置了dismissNotificationProgress还是会报这句话的问题
            Toast.makeText(mActivity, "app正在更新", Toast.LENGTH_SHORT).show();
            return;
        }