Question

推送通知仅显示没有任何文字的应用徽标。只有现有通知时才会显示这些字词。仅在Samsung Galaxy Note 3（Kitkat 4.4.2）设备中观察到此问题。请帮忙

NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(
                context);
        NotificationCompat.BigTextStyle notiStyle1 = null;
        NotificationCompat.BigPictureStyle notiStyle2 = null;       

        RemoteViews remoteViews = new RemoteViews(getPackageName(),
                R.layout.custom_notification);          
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            notiStyle1 = new 
                    NotificationCompat.BigTextStyle();          

            mBuilder.setSmallIcon(R.drawable.ic_launcher_small);
        }
        else
        {
            notiStyle2 = new 
                    NotificationCompat.BigPictureStyle();

            mBuilder.setSmallIcon(R.drawable.ic_launcher);
        }

        notificationIndex    = EntraderApplication.getApplication()
                .getNOTIFICATION_ID();

        mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        System.out.println("Status : " + status + ", message : " + message
                + ", content : " + content);
        Intent notificationIntent = new Intent(context, SplashActivity.class);
        notificationIntent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP);
        if (status.equalsIgnoreCase("1") || status.equalsIgnoreCase("2")
                || status.equalsIgnoreCase("3")) {
            try {

                    Log.e("DONT MOVE------>", "in else part");
                    TradeEntry entry = new ObjectMapper().readValue(content,
                            TradeEntry.class);
                    entry.toString();                   

                    bundle.putSerializable(
                            CustomerHomeFragment.CustomerHomeFragment_data, entry);
                    bundle.putString(
                            CustomerHomeFragment.CustomerHomeFragment_data_type,
                            status);

                    bundle.putInt(Pref_Noti_Clicked, msg_counter);
                    //bundle.put
                //  notificationIntent.putExtra(Pref_Noti_Clicked, msg_counter);
                    System.out.println("Added type : "+ status);
                    notificationIntent.putExtras(bundle);

            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        PendingIntent intent = PendingIntent.getActivity(context, notificationIndex,
                notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);

        mBuilder.setTicker(getString(R.string.app_name));
        mBuilder.setWhen(System.currentTimeMillis());
        mBuilder.setAutoCancel(true);
        mBuilder.setContentTitle(getString(R.string.app_name));

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) 
        {
            mBuilder.setStyle(notiStyle1);
        }
        else
        {
            mBuilder.setStyle(notiStyle2);
        }       


        mBuilder.setContentIntent(intent);
        if (EntraderApplication.getApplication().getSharePreference()
                .getBoolean(context.getString(R.string.pref_vibration), true)) {
            mBuilder.setVibrate(new long[] { 1000, 1000 });
        }


        if (EntraderApplication
                .getApplication()
                .getSharePreference()
                .getBoolean(context.getString(R.string.pref_notification), true)) {
            mBuilder.setSound(RingtoneManager
                    .getDefaultUri(RingtoneManager.TYPE_NOTIFICATION));
        }


        remoteViews.setTextViewText(R.id.text, message);
        mBuilder.setContent(remoteViews);
        Notification notification = mBuilder.build();
        mNotificationManager.notify(notificationIndex, notification);

Answer 1

我想说使代码更加模块化和有条理。通过查看代码很难发现问题。看起来你已经添加但它们的顺序不正确（也许）。

sendNotification内的onHandleIntent等方法会在收到通知后立即触发。以下是一个示例：

 protected void onHandleIntent(Intent intent) {
        Bundle extras = intent.getExtras();
        GoogleCloudMessaging gcm = GoogleCloudMessaging.getInstance(this);

        String messageType = gcm.getMessageType(intent);

        if (!extras.isEmpty()) {

            if (GoogleCloudMessaging.
                    MESSAGE_TYPE_SEND_ERROR.equals(messageType)) {
                sendNotification("Send error: " + extras.toString());
            } else if (GoogleCloudMessaging.
                    MESSAGE_TYPE_DELETED.equals(messageType)) {
                sendNotification("Deleted messages on server: " +
                        extras.toString());
            } else if (GoogleCloudMessaging.
                    MESSAGE_TYPE_MESSAGE.equals(messageType)) {
                Log.i(TAG, "Completed work @ " + SystemClock.elapsedRealtime());

                sendNotification(extras.toString());

                Log.i(TAG, "Received: " + extras.toString());
            }
        }
        // Release the wake lock provided by the WakefulBroadcastReceiver.
        GcmBroadcastReceiver.completeWakefulIntent(intent);
    }

    private void sendNotification(String msg) {
        mNotificationManager = (NotificationManager)
                this.getSystemService(Context.NOTIFICATION_SERVICE);

        PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
                new Intent(this, MainActivity.class), 0);

        NotificationCompat.Builder mBuilder =
                new NotificationCompat.Builder(this)
                        .setSmallIcon(R.drawable.checkmark)
                        .setContentTitle("GCM Notification")
                        .setStyle(new NotificationCompat.BigTextStyle()
                                .bigText(msg))
                        .setContentText(msg);

        mBuilder.setContentIntent(contentIntent);
        mNotificationManager.notify(NOTIFICATION_ID, mBuilder.build());
    }

希望这有助于!!

推送通知仅显示没有任何文字的应用徽标

1 个答案: