android - 如何在服务运行时更改状态栏图标

Question

我要更改通知smallIcon在前台服务运行时的状态栏中，取决于服务收集的状态，即“静音”或“取消静音”。

显示备用 smallIcons 需要什么来自 res.drawable资源？

在服务类的initialize方法中，我目前设置静音图标如下，但是不知道服务启动后怎么改:

NotificationCompat.Builder builder = new NotificationCompat.Builder(
        this, NOTE_CHANNEL_ID)
        .setSmallIcon(R.drawable.mute_icon)
        .setContentTitle("Calm: Running")
        .setContentText(this.getString(R.string.calm_close_txt))
        .setOngoing(true)
        .setContentIntent(stopIntent);

startForeground(NOTIFICATION_ID, builder.build());

Answer 1

解决方法是创建一个带有新图标的新通知，这样它就会替换旧的。
编辑:
这是一个示例代码，用于在每次单击按钮时创建一个新通知，其中包含基于 bool 变量 indicator 的示例逻辑。 .

findViewById(R.id.button).setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        //Create the notification builder object
        NotificationCompat.Builder builder = new NotificationCompat.Builder(v.getContext(), NOTE_CHANNEL_ID)
                .setSmallIcon(indicator ? R.drawable.icon1 : R.drawable.icon2)   //TODO: change this line with your logic
                .setContentTitle("Your notification title here")
                .setContentText("Your notificiation text here")
                .setPriority(NotificationCompat.PRIORITY_HIGH)
//                        .setContentIntent(pendingIntent)    //pendingIntent to fire when the user taps on it
                .setAutoCancel(true);   //autoremove the notificatin when the user taps on it

        //show the notification constructed above
        NotificationManagerCompat notificationManager = NotificationManagerCompat.from(v.getContext());
        notificationManager.notify(NOTIFICATION_ID, builder.build());

        indicator = !indicator; //switch icon indicator (just for demonstration)
    }
});