Question

我正在使用FCM来获取新通知，我可以毫无问题地显示该通知，但是当我打开该应用程序时，我的所有通知都消失了

这是我用于创建新通知的代码

 final NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(
                mContext,mContext.getString(R.string.default_notification_channel_id));

Notification notification;
        notification = mBuilder.setSmallIcon(icon).setTicker(title).setWhen(0)
                .setAutoCancel(true)
                .setContentTitle(title)
                .setContentIntent(resultPendingIntent)
                .setStyle(inboxStyle)
                .setWhen(getTimeMilliSec(timeStamp))
                .setSmallIcon(R.drawable.notification_icon)
                .setLargeIcon(BitmapFactory.decodeResource(mContext.getResources(), icon))
                .setContentText(message)
                .build();

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

        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {



            CharSequence name = "my_channel";
            String Description = "This is my channel";
            int importance = NotificationManager.IMPORTANCE_HIGH;
            NotificationChannel mChannel = new NotificationChannel(mContext.getString(R.string.default_notification_channel_id), name, importance);
            mChannel.setDescription(Description);
            mChannel.enableLights(true);
            mChannel.setLightColor(Color.RED);
            mChannel.enableVibration(true);
            mChannel.setVibrationPattern(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400});
            mChannel.setShowBadge(false);
            notificationManager.createNotificationChannel(mChannel);
        }


        int id = (int) System.currentTimeMillis();
        notificationManager.notify(id, notification);

当点击通知时，它将打开一个活动，其中包含额外的数据我的意图

 Intent resultIntent = new Intent(getApplicationContext(), MainActivity.class); 
 resultIntent.putExtra("message", "wwwwwwww");
resultIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);


resultIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);



PendingIntent resultPendingIntent =
                PendingIntent.getActivity(
                        mContext,
                        0,
                        intent,
                        PendingIntent.FLAG_UPDATE_CURRENT
                );

现在，当我单击任何通知时，它会打开MainActivity并具有Main活动所依赖的一些额外值。

但是当我单击一个通知并启动活动时，所有其他通知都消失了。因此，如何防止这种情况并只隐藏单击的通知，以便用户可以看到其他通知

Answer 1

不确定是否可以使用，但是您可以尝试将请求代码设置为唯一而不是0。

PendingIntent resultPendingIntent = PendingIntent.getActivity(mContext,0,intent,PendingIntent.FLAG_UPDATE_CURRENT);

将0替换为以下

PendingIntent resultPendingIntent = PendingIntent.getActivity(mContext,(int) System.currentTimeMillis(),intent,PendingIntent.FLAG_UPDATE_CURRENT);

Answer 2

尝试

**.setPriority(NotificationManager.IMPORTANCE_HIGH)**
Notification notification;
        notification = mBuilder.setSmallIcon(icon).setTicker(title).setWhen(0)
                .setAutoCancel(true)
                .setContentTitle(title)
                .setContentIntent(resultPendingIntent)
                .setSound(alarmSound)
                .setStyle(new NotificationCompat.BigTextStyle().bigText(message))
                .setWhen(getTimeMilliSec(timeStamp))
                .setSmallIcon(ICON)
                .setLargeIcon(BitmapFactory.decodeResource(mContext.getResources(), icon))
                .setContentText(message)
                .setDefaults(Notification.DEFAULT_ALL)
                .setPriority(NotificationManager.IMPORTANCE_HIGH)
                .build();
        notification.flags |= Notification.FLAG_AUTO_CANCEL;

        NotificationManager notificationManager = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
        notificationManager.notify(num, notification);

打开应用程序时，android所有通知均消失

2 个答案: