Android 8.0+ 通知不显示的适配

时间:2021-03-16 05:05:49

最近在 写项目的时候  发现 通知并不会显示的问题,查看资料发现 从Android 8.0开始通知必须加上ChannelId

Android O 引入了 通知渠道(Notification Channels),以提供统一的系统来帮助用户管理通知,如果是针对 android O 为目标平台时,必须实现一个或者多个通知渠道,以向用户显示通知。比如聊天软件,为每个聊天组设置一个通知渠道,指定特定声音、灯光等配置
String id = "my_id";
String name="my_name";
notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
Notification notification = null;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationChannel mChannel = new NotificationChannel(id, name, NotificationManager.IMPORTANCE_LOW);
Toast.makeText(this, mChannel.toString(), Toast.LENGTH_SHORT).show();
Log.i(TAG, mChannel.toString());
notificationManager.createNotificationChannel(mChannel);
notification = new Notification.Builder(this)
.setChannelId(id)
.setContentTitle("5 new messages")
.setContentText("hahaha")
.setSmallIcon(R.mipmap.ic_launcher).build();
} else {
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setContentTitle("5 new messages")
.setContentText("hahaha")
.setSmallIcon(R.mipmap.ic_launcher)
.setOngoing(true)
.setChannel(id);//无效
notification = notificationBuilder.build();
}
notificationManager.notify(111123, notification);