添加自定义通知指示灯

时间:2018-04-08 15:44:49

标签: java android

我在Android 8下有一部手机,我开始使用Android Studio进行Android编程。一些应用程序,如Snapchat或Facebook,当通知出现时,我的手机灯会以自定义颜色(黄色和蓝色)为主。

我想对我的应用做同样的事情,我搜索了很多但没有任何作用,通知出现但不是白光。我检查了手机设置,我的应用程序可以点亮LED。

public class Notification
{
    public Notification(String channelId, String channelName, Context context, String title, String body, Intent intent)
    {
            NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);

            int notificationId = 1;
            int importance = NotificationManager.IMPORTANCE_HIGH;

            if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O)
            {
                 NotificationChannel mChannel = new 
                 NotificationChannel(channelId, channelName, importance);
                 notificationManager.createNotificationChannel(mChannel);
            }

            NotificationCompat.Builder nbuilder = new NotificationCompat.Builder(context, channelId)
                     .setLights(Color.WHITE, 500, 100) // doesn't work
                     .setVibrate(new long[] { 1000, 1000, 1000, 1000, 1000 }) // doesn't work
                     .setContentTitle(title)
                     .setContentText(body);

            TaskStackBuilder stackBuilder = 
            TaskStackBuilder.create(context);
            stackBuilder.addNextIntent(intent);
            PendingIntent resultPendingIntent = 
            stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
            nbuilder.setContentIntent(resultPendingIntent);

            notificationManager.notify(notificationId, nbuilder.build());
    }
}

我尝试在setLights()之后调用setVibrate()setContentText(),我尝试在notify()之前调用这些空格,但它没有改变任何内容。

我在onCreate()

中实习我的班级
new Notification("channel-01", "MathWellan Notification", this, "Twitter", "Follow me on Twitter !", new Intent(Intent.ACTION_VIEW, Uri.parse("twitter://user?screen_name=MathWellan")));

抱歉我的英语不好,我是法国人,我希望你能帮助我! 谢谢提前:)

1 个答案:

答案 0 :(得分:1)

使用以下代码行更改通知LED颜色:your_notification.ledARGB = Color.YOUR_COLOR;

用法示例:

NotificationManager notif = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
    notif.cancel(1); // clear previous notification 
    final Notification notification = new Notification();

    notification.ledARGB = Color.MAGENTA;

    notification.ledOnMS = 1000;
    notification.flags |= Notification.FLAG_SHOW_LIGHTS;
    notif.notify(1, notification);

注意:测试时屏幕应该被锁定,因为通知LED仅在屏幕关闭时才会突出显示。 也许这是你的问题。