通知setLargeIcon和setSmallIcon不起作用

Question

我正在尝试setLargeIcon＆amp; setSmallIcon但它不起作用。 显示通知但正在显示默认的android图标。

NotificationCompat.Builder builder = new NotificationCompat.Builder(context, "my_channel_01")
                .setContentIntent(pendingIntent)
                .setLargeIcon(BitmapFactory.decodeResource(context.getResources(), R.drawable.app_icon))
                .setSmallIcon(R.drawable.app_icon)
                .setContentTitle("Notification Title")
                .setContentText("Notification Text")
                //.setPriority(Notification.PRIORITY_MAX)
                .setSound(alarmSound)
                .setAutoCancel(true);