如何在 android studio 上禁用清理或删除通知

Question

我正在使用 firebase 推送通知。所以在我的项目中，如果我点击一个通知，它应该打开一个调用“UserDetailsActivity”的界面。但我想在打开“UserDetailsActivity”之前禁用删除或清除通知。

这是我的代码：

    @Override
    public void onMessageReceived(@NonNull RemoteMessage remoteMessage) {
        super.onMessageReceived(remoteMessage);
        Log.d(TAG, "From: " + remoteMessage.getFrom());

        super.onMessageReceived(remoteMessage);
        Log.d("msg", "onMessageReceived: " + remoteMessage.getData().get("message")+"hey "+remoteMessage.getSentTime());



   if (remoteMessage.getData().size() > 0) {



            Log.d(TAG, "Message data payload: " + remoteMessage.getData());
            if(remoteMessage.getData().get("title").equals("Pagamento")){
                HashMap<String,String> map = new HashMap<String,String>();
                map.put("title",remoteMessage.getData().get("title"));
                map.put("Parametro1",remoteMessage.getData().get("Parametro1"));

                String Parametro1 = map.get("Parametro1");
                String[] seperater =Parametro1.split(":");
                String orderId =seperater[1];
                map.remove("Parametro1");
                map.put("orderId",orderId);

                Intent intent = new Intent(this, UserDetailsActivity.class);
                intent.putExtra("pushNotification",map);
                intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_ONE_SHOT);
                String channelId = "Default";
                NotificationCompat.Builder builder = new  NotificationCompat.Builder(this, channelId)
                        .setSmallIcon(R.mipmap.ic_push_notificatioin)
                        .setContentTitle(remoteMessage.getNotification().getTitle())
                        .setContentText(remoteMessage.getNotification().getBody()).setAutoCancel(true).setContentIntent(pendingIntent);;
                NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                    NotificationChannel channel = new NotificationChannel(channelId, "Default channel", NotificationManager.IMPORTANCE_DEFAULT);
                    manager.createNotificationChannel(channel);
                }
                manager.notify((int) remoteMessage.getSentTime(), builder.build());
               stopForeground(true);
                startService(new Intent(getApplicationContext(),UserDetailsActivity.class));
                Log.d(TAG, "Message data payload:1 " );
            }

        }

        if (remoteMessage.getNotification() != null) {
            Log.d(TAG, "Message Notification Body: " + remoteMessage.getNotification().getBody());
            startService(new Intent(getApplicationContext(),UserDetailsActivity.class));
        }
    }

Answer 1

要使用无法删除的通知，我必须添加新的第一行 notificationCompat.Bilder，它是：

NotificationCompat.Builder builder = new NotificationCompat.Builder(this, channelId) 
                                    .setSmallIcon(R.mipmap.ic_push_notificatioin)
                                    .setOngoing(true)

**如果设置“setOngoing”通知为真则用户无法删除它

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