Question

已解决，感谢所有贡献的人。

这是我用来向用户显示通知的功能。但是，由于某种原因，看起来通知不会被删除...不知道为什么。请注意，变量NOTIFICATION初始化为：

public static  int NOTIFICATION = 1;  
public void displayNotification(String title, String message, Intent intent) {
    PendingIntent resultPendingIntent = PendingIntent.getActivity(mCtx, NOTIFICATION, 
            intent, PendingIntent.FLAG_UPDATE_CURRENT); //FLAG_ONE_SHOT ? FLAG_UPDATE_CURRRENT

    NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(mCtx);
    Notification notification;
    notification = mBuilder.setSmallIcon(R.mipmap.ic_logo_nobg).setTicker(title).setWhen(0)
            .setContentIntent(resultPendingIntent)
            .setContentTitle(title)
            .setSmallIcon(R.mipmap.ic_logo_nobg)
            .setLargeIcon(BitmapFactory.decodeResource(mCtx.getResources(), R.mipmap.ic_roundedlogo))
            .setSound(Settings.System.DEFAULT_NOTIFICATION_URI)
            .setPriority(NotificationCompat.PRIORITY_HIGH)
            .setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
            .setDefaults(Notification.DEFAULT_ALL)
            .build();

    notification.flags |= Notification.FLAG_AUTO_CANCEL;

    final NotificationManager notificationManager = (NotificationManager) mCtx
            .getSystemService(Context.NOTIFICATION_SERVICE);
    notificationManager.notify(NOTIFICATION, notification);

    // This method will get rid of the notification AND the message after 1 day
    Handler handler = new Handler(Looper.getMainLooper());
    handler.post(new Runnable() {
        public void run() {
            new Handler().postDelayed(new Runnable() {
                @Override
                public void run() {
                    notificationManager.cancel(NOTIFICATION);
                    Preference_Manager.getInstance(mCtx).deleteKeyMessage(NOTIFICATION);
                    // Preference_Manager.getInstance(mCtx).deleteKeyMessageid(NOTIFICATION);
                }
            }, 5000/*howMany */);

        }
    });
    NOTIFICATION++;
}

Answer 1

好像你的run()方法没有被调用。直接使用此代码

new Handler().postDelayed(new Runnable() {
    @Override
    public void run() {
        notificationManager.cancel(NOTIFICATION);
        Preference_Manager.getInstance(mCtx).deleteKeyMessage(NOTIFICATION);
        // Preference_Manager.getInstance(mCtx).deleteKeyMessageid(NOTIFICATION);
    }
}, 5000/*howMany */);

将其称为另一个永远不会被调用的Runnable。

要清除所有通知，请使用以下方法：

public void clearNotifications(Context context) {
    NotificationManager notificationManager=(NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
    notificationManager.cancelAll();
}

希望对你有帮助..

Answer 2

当您的通知值增加时，它不会删除通知，并且在延迟后的Runnable中，它将检查更新的值。

尝试使用notificationManager.cancel(NOTIFICATION - 1); 它应该工作

您可以将最后删除的值存储在一个变量NOTIFICATION_DELETED和处理程序

中

for(int i = NOTIFICATION_DELETED ;i < NOTIFICATION;i++){ 
    notificationManager.cancel(i); 
}

Answer 3

也许检查一下

public static  int NOTIFICATION = 1;  


public void displayNotification(String title, String message, Intent intent) {
    PendingIntent resultPendingIntent = PendingIntent.getActivity(mCtx, NOTIFICATION, 
            intent, PendingIntent.FLAG_UPDATE_CURRENT); //FLAG_ONE_SHOT ? FLAG_UPDATE_CURRRENT

    NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(mCtx);
    Notification notification;
    notification = mBuilder.setSmallIcon(R.mipmap.ic_logo_nobg).setTicker(title).setWhen(0)
            .setContentIntent(resultPendingIntent)
            .setContentTitle(title)
            .setSmallIcon(R.mipmap.ic_logo_nobg)
            .setLargeIcon(BitmapFactory.decodeResource(mCtx.getResources(), R.mipmap.ic_roundedlogo))
            .setSound(Settings.System.DEFAULT_NOTIFICATION_URI)
            .setPriority(NotificationCompat.PRIORITY_HIGH)
            .setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
            .setDefaults(Notification.DEFAULT_ALL)
            .build();

    notification.flags |= Notification.FLAG_AUTO_CANCEL;

    final NotificationManager notificationManager = (NotificationManager) mCtx
            .getSystemService(Context.NOTIFICATION_SERVICE);
    notificationManager.notify(NOTIFICATION, notification);

    final int notificationId = NOTIFICATION;

    // This method will get rid of the notification AND the message after 1 day
    Handler handler = new Handler(Looper.getMainLooper());
    handler.post(new Runnable() {
        public void run() {
            new Handler().postDelayed(new Runnable() {
                @Override
                public void run() {
                    notificationManager.cancel(notificationId);
                    Preference_Manager.getInstance(mCtx).deleteKeyMessage(notificationId);
                    // Preference_Manager.getInstance(mCtx).deleteKeyMessageid(NOTIFICATION);
                }
            }, 5000/*howMany */);

        }
    });
    NOTIFICATION++;
}

几秒钟后通知不会被清除。 -Android

3 个答案: