除非应用程序处于打开状态，否则打开通知浏

Question

我在GcmListenerService上有这段代码

@Override
public void onMessageReceived(String from, Bundle data) {
    Log.d("MESSAGE RECEIVED", data.toString());
    try {
        Bundle notification = (Bundle) data.get("notification");
        if (notification != null) {

            String title = notification.getString("title");
            String text = notification.getString("body");
            String target = notification.getString("target");


            Intent notificationIntent = new Intent(Intent.ACTION_VIEW);
            notificationIntent.setData(Uri.parse(target));
            PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);

            NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
            NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this)
                    .setSmallIcon(R.drawable.ic_launcher)
                    .setContentTitle(title)
                    .setContentText(text)
                    .setSound(Settings.System.DEFAULT_NOTIFICATION_URI)
                    .setContentIntent(contentIntent)
                    .setAutoCancel(true);
            notificationManager.notify(1, mBuilder.build());
            super.onMessageReceived(from, data);
        }
    } catch (Exception e ){
        e.printStackTrace();
    }
}

当应用程序打开时，意图效果很好，但如果您单击通知当应用程序关闭时，通知只会打开我的应用程序（而不是我预期的浏览器）。

有什么想法吗？