Android滑动进度条通知不起作用

Question

am尝试制作进度条通知，一切正常 但问题是我无法取消通知 每次我擦 又来了 当我在上一个完成进度之前再次启动它时，进度bas正在复制 那么在这种情况下我该怎么办？

通知代码

private void startNotification() {
        String value= mEditTextInput.getText().toString();
        final int input2=Integer.parseInt(value);
        Intent activityIntent = new Intent(Notification.this, Notification.class);
        final PendingIntent contentIntent = PendingIntent.getActivity(Notification.this,
                0, activityIntent, 0);

        final NotificationCompat.Builder notification = new NotificationCompat.Builder(Notification.this, CHANNEL_1_ID)
                .setSmallIcon(R.drawable.noti)
                .setContentTitle("title")
                .setContentText("text")
                .setPriority(NotificationCompat.PRIORITY_LOW)
                .setAutoCancel(true)
                .setOngoing(false)
                .setContentIntent(contentIntent)
                .setColor(Color.BLUE)
                .setOnlyAlertOnce(true)
                .setProgress(input2, 0, false);

        notificationManager.notify(1, notification.build());

        new Thread(new Runnable() {
            @Override
            public void run() {
                SystemClock.sleep(0);

                for (int progress = 0; progress <= input2; progress += 1) {
                    notification.setProgress(input2, progress, false);
                    notificationManager.notify(1, notification.build());
                    SystemClock.sleep(1000);
                }
                notification.setContentText("finish")
                        .setProgress(0, 0, false)
                        .setOngoing(false)
                        .setAutoCancel(true)
                        .setContentIntent(contentIntent)
                        .setColor(Color.RED);
                ;

                notificationManager.notify(1, notification.build());

            }
        }).start();
    }