Android 修改Notification.Builder progressbar而不使用自定义布局

有人知道我如何使用Notification.builder，然后更新进度条吗？目前它似乎受到限制。我知道我可以访问notification.contentView，但是从这里更新progressView需要视图ID，它是android内部类的一部分（我没有访问的范围）。当然，如果通知生成器允许您显示进度条，那么应该有一种方法来更新它吗

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我应该补充一点，我希望在不重复调用“getNotification”的情况下执行此操作，因为这似乎效率极低。

您可以使用新线程以肮脏的方式执行此操作。然而，通过这种方式，您的通知不会结束，直到它自己结束。 这是代码

public void showJobFinishNotification() {
    final String ns = Context.NOTIFICATION_SERVICE;
    final NotificationManager notificationManager = (NotificationManager) getSystemService(ns);
    final Intent notificationIntent = new Intent(this, WillingActivity.class);
    final PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
    final int JOBFINISH_ID = 1;

    new Thread(new Runnable() {
        public void run() {
            for(int progress = 0; progress <= 29; progress++) {
                Notification jobFinishNotification = new NotificationCompat.Builder(getApplication())
                    .setSmallIcon(R.drawable.ic_launcher) //must have small icon, but the large icon is not a must
                    .setContentTitle("Job is finished")
                    .setContentText("Press here to finish your job.")
                    .setProgress(29, progress, false) 
                    .setDefaults(Notification.DEFAULT_SOUND)
                    .setContentIntent(contentIntent)
                    .setAutoCancel(false)
                    .build();
                notificationManager.notify(JOBFINISH_ID, jobFinishNotification);
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
            notificationManager.cancel(JOBFINISH_ID); //if you want the user to handle the notification.
            //comment the line above. and use setAutoCancel(true) in the above code.
        }
    }).start();
}

public void showJobFinishNotification（）{
最终字符串ns=Context.NOTIFICATION\u服务；
最终NotificationManager NotificationManager=（NotificationManager）getSystemService（ns）；
最终意图notificationIntent=新意图（this，WillingActivity.class）；
final pendingent contentIntent=pendingent.getActivity（this，0，notificationIntent，0）；
最终int作业完成_ID=1；
新线程（newrunnable（））{
公开募捐{
对于（int progress=0；progress，您可以使用一个新线程以脏的方式执行此操作。但是，通过这种方式，您的通知不会结束，直到它自己结束为止。
这是代码

public void showJobFinishNotification() {
    final String ns = Context.NOTIFICATION_SERVICE;
    final NotificationManager notificationManager = (NotificationManager) getSystemService(ns);
    final Intent notificationIntent = new Intent(this, WillingActivity.class);
    final PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
    final int JOBFINISH_ID = 1;

    new Thread(new Runnable() {
        public void run() {
            for(int progress = 0; progress <= 29; progress++) {
                Notification jobFinishNotification = new NotificationCompat.Builder(getApplication())
                    .setSmallIcon(R.drawable.ic_launcher) //must have small icon, but the large icon is not a must
                    .setContentTitle("Job is finished")
                    .setContentText("Press here to finish your job.")
                    .setProgress(29, progress, false) 
                    .setDefaults(Notification.DEFAULT_SOUND)
                    .setContentIntent(contentIntent)
                    .setAutoCancel(false)
                    .build();
                notificationManager.notify(JOBFINISH_ID, jobFinishNotification);
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
            notificationManager.cancel(JOBFINISH_ID); //if you want the user to handle the notification.
            //comment the line above. and use setAutoCancel(true) in the above code.
        }
    }).start();
}

public void showJobFinishNotification（）{
最终字符串ns=Context.NOTIFICATION\u服务；
最终NotificationManager NotificationManager=（NotificationManager）getSystemService（ns）；
最终意图notificationIntent=新意图（this，WillingActivity.class）；
final pendingent contentIntent=pendingent.getActivity（this，0，notificationIntent，0）；
最终int作业完成_ID=1；
新线程（newrunnable（））{
公开募捐{
对于（int progress=0；progress）