Question

我在我的应用程序中使用GCM，问题是我能够听到通知声音但它没有显示，以下是我的代码片段可以任何人帮我解决这个问题，提前谢谢，... ................

public class MyGcmListenerService extends GcmListenerService {

    private static final String TAG = "MyGcmListenerService";

    /**
     * Called when message is received.
     *
     * @param from SenderID of the sender.
     * @param data Data bundle containing message data as key/value pairs.
     *             For Set of keys use data.keySet().
     */
    // [START receive_message]
    @Override
    public void onMessageReceived(String from, Bundle data) {
        String message = data.getString("message");
        String img = data.getString("img");
        Log.d(TAG, "From: " + from);
        Log.d(TAG, "Message: " + message);
        Log.d(TAG, "Images: " + img);

        if (from.startsWith("/topics/")) {
            // message received from some topic.
        } else {
            // normal downstream message.
        }

        // [START_EXCLUDE]
        /**
         * Production applications would usually process the message here.
         * Eg: - Syncing with server.
         *     - Store message in local database.
         *     - Update UI.
         */

        /**
         * In some cases it may be useful to show a notification indicating to the user
         * that a message was received.
         */
        sendNotification(message,img);
        // [END_EXCLUDE]
    }
    // [END receive_message]

    /**
     * Create and show a simple notification containing the received GCM message.
     *
     * @param message GCM message received.
     */
    private void sendNotification(String message,String img) {
        Intent intent = new Intent(this, MainActivity.class);
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
                PendingIntent.FLAG_ONE_SHOT);

       // Integer imgs=Integer.parseInt(img);

        Bitmap bitmap = getBitmapFromURL(img);

        Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
        NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
                .setLargeIcon(bitmap)
                .setContentTitle("New Product Added")
                .setContentText(message)
                .setAutoCancel(true)
                .setSound(defaultSoundUri)
                .setContentIntent(pendingIntent);





        NotificationManager notificationManager =
                (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

        notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
    }

    public Bitmap getBitmapFromURL(String strURL) {
        try {
            URL url = new URL(strURL);
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.setDoInput(true);
            connection.connect();
            InputStream input = connection.getInputStream();
            Bitmap myBitmap = BitmapFactory.decodeStream(input);
            return myBitmap;
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }
    }
}

Answer 1

还添加小图标

setSmallIcon(R.drawable.ic_launcher);

Answer 2

onMessageReceived方法必须尽可能快地执行＃34;＆＃34;。只要下载该图像，就不能占用主线程。您可以通过使用AsyncTask来实现异步。

如果您使用本地图片作为图标并从那里获取代码，我确定您的代码能够正常工作。

GCM通知未显示

2 个答案: