android API 23中的led通知 [英] led notification in android API 23

问题描述

我想打开或闪烁android设备上的led.所以我通过下面的代码来做到这一点

I want to turn on or blink the led on android devices. So I am doing it through the code below

NotificationManager nm = ( NotificationManager ) getSystemService( NOTIFICATION_SERVICE );
    Notification notif = new Notification();
    notif.ledARGB = 0xFF0000; // #0000FF
    notif.flags = Notification.FLAG_SHOW_LIGHTS;
    notif.ledOnMS = 100;
    notif.ledOffMS = 100;
    nm.notify(5, notif);
    Toast.makeText(this, "RED LED SELECTED", Toast.LENGTH_LONG).show();

这有效.除非我在棉花糖6.0.1 API上进行了测试，否则它会崩溃.23.它会崩溃.有人告诉我解决方案吗?

And this works. Unless I tested it on Marshmallow 6.0.1 API: 23. It crashes. Anyone please tell me the solution?

推荐答案

请尝试以下操作:

由于无效的小图标，它引发的异常是无效通知"，这在API级别23和更高级别上是必需的.另外，请始终使用NotificationCompat.Builder来构建通知，如下所示:

The exception it was throwing says Invalid Notification due to invalid small icon which is mandatory on API level 23 and above. Also, always use NotificationCompat.Builder to build a notification as under :

NotificationManagerCompat nm = NotificationManagerCompat.from(this);
NotificationCompat.Builder notif = new NotificationCompat.Builder(this);
notif.setLights(0xff0000, 100, 100);
notif.setSmallIcon(R.mipmap.ic_launcher);
notif.setContentTitle("Notification Title");
nm.notify(5, notif.build());

此外，内容标题不是强制性的，但您应使用它为用户提供有关通知的正确信息.否则，它们会很烦人.

Also, Content Title is not mandatory but you should use it to provide proper info to user about the notification. Otherwise, they are very irritating.

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