java - 在 android studio 中清除应用程序通知

Question

我有一个发送通知的应用程序，但是当用户离开该应用程序时，通知仍然存在，以防他不单击它。因此，当用户注销或 session 用户为“null”时，通知将被自动删除。

我的代码:

@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
public void enviarNotificacao(){
    Intent intent = new Intent(this, BottomNavigation.class);
    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
    intent.setAction(Intent.ACTION_MAIN);
    intent.addCategory(Intent.CATEGORY_LAUNCHER);
    intent.putExtra("totens", listaTotem);

    int id = (int) (Math.random()*1000);
    PendingIntent pi = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
    NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
    builder.setTicker("Olá Marujo!!!");
    builder.setContentTitle("Capitão Cupom");
    builder.setContentText("Um novo tesouro próximo de você");
    builder.setSmallIcon(R.drawable.logo);
    builder.setLargeIcon(BitmapFactory.decodeResource(getResources(), R.drawable.logo));
    builder.setContentIntent(pi);
    builder.setAutoCancel(true);

    NotificationManagerCompat notificationManager = NotificationManagerCompat.from(this);
    notificationManager.notify(id, builder.build());

    Notification n = builder.build();
    n.vibrate = new long[]{150, 300, 150, 600};
    notificationManager.notify(R.drawable.logo, n);

    try {
        Uri som  = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
        Ringtone toque = RingtoneManager.getRingtone(this, som);
        toque.play();
    }catch (Exception e){

    }
    Sessao.instance.setSailor(sailor);
}

Answer 1

NotificantionManager.cancel(id) 取消具有该 id 的通知。 NoticiationManager.cancelAll() 取消来自此应用程序的所有通知。检测 session 何时结束显然是您需要构建的业务逻辑。当发生这种情况时，调用上述 2 个函数之一。