更新:我正在重新编写Android 3.0之前的兼容性原始帖子.
我正在尝试创建一个简单的通知,除了灯光之外的所有功能都很棒.当通知触发时,我确实关闭了屏幕.使用此弃用的代码声音和振动适用于Android 4.0(Galaxy Nexus)和Android 2.3(HTC EVO).
在4.0 Galaxy Nexus上,灯不起作用.
Notification notification =
new Notification(R.drawable.ic_launcher, "My Ticker!",System.currentTimeMillis());
notification.setLatestEventInfo(context, "My Title", "My Message", pendingIntent);
notification.defaults |= Notification.DEFAULT_SOUND;
notification.defaults |= Notification.DEFAULT_VIBRATE;
//notification.defaults |= Notification.DEFAULT_LIGHTS;
notification.ledARGB = 0xff00ff00;
notification.ledOnMS = 300;
notification.ledOffMS = 1000;
notification.flags |= Notification.FLAG_SHOW_LIGHTS;
notification.flags |= Notification.FLAG_AUTO_CANCEL;
Run Code Online (Sandbox Code Playgroud)我还尝试了不属于v4兼容性库的新API,因此我只能在Galaxy Nexus上测试它.振动和声音再次起作用但不起作用.
Notification.Builder builder = new Notification.Builder(context);
builder.setContentIntent(pendingIntent)
.setSmallIcon(R.drawable.ic_launcher)
.setTicker("My Ticker")
.setWhen(System.currentTimeMillis())
.setAutoCancel(true)
.setDefaults(Notification.DEFAULT_VIBRATE | Notification.DEFAULT_SOUND | Notification.FLAG_SHOW_LIGHTS)
.setLights(0xff00ff00, 300, 100)
.setContentTitle("My Title 1")
.setContentText("My Text 1");
Notification notification = builder.getNotification();
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我现在已经在两款Galaxy Nexus手机上进行了测试,并且这两款手机都没有.当我运行测试时屏幕关闭,手机上的所有其他应用程序触发灯光没有问题.
如果使用setDefaults(DEFAULT_LIGHTS)或setDefaults(DEFAULT_ALL),它将忽略FLAG_SHOW_LIGHTS以及对setLights()的任何调用.我发现在我的手机上,默认设置不会点亮任何东西.所以不要使用DEFAULT_ALL或DEFAULT_LIGHTS,并在必要时使用RGB颜色......尽管0xff00ff00应该可以在所有情况下使用.
今天碰到了这个......如果它仍然有用......只有某些优先级的通知 - HIGH,MAX才能使LED发光,而优先级较低的那些通知则不能.添加这个应该使LED发光......
builder.setPriority(Notification.PRIORITY_MAX)
4懒人:
private void testNotification() {
Notification.Builder builder = new Notification.Builder(this);
builder.setSmallIcon(R.drawable.ic_launcher)
.setPriority(Notification.PRIORITY_HIGH)
.setOngoing(true);
builder.setLights(0xff00ff00, 300, 100);
NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
manager.notify(1, builder.build());
}
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