android 通知（android 8.0可用）

 

final String CHANNEL_ID = "com.chao.channel.id";
final String CHANNEL_NAME = "com.chao.channel.name";

NotificationManager mManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
Notification.Builder builder = null;


if(Build.VERSION.SDK_INT < Build.VERSION_CODES.O){
        builder = new Notification.Builder(this);
}else{
/**
 * Oreo不用Priority了，用importance
 * IMPORTANCE_NONE 关闭通知
 * IMPORTANCE_MIN 开启通知，不会弹出，但没有提示音，状态栏中无显示
 * IMPORTANCE_LOW 开启通知，不会弹出，不发出提示音，状态栏中显示
 * IMPORTANCE_DEFAULT 开启通知，不会弹出，发出提示音，状态栏中显示
 * IMPORTANCE_HIGH 开启通知，会弹出，发出提示音，状态栏中显示
 */过
  NotificationChannel notificationChannel = new 
  NotificationChannel(Config.CHANNEL_ID, Config.CHANNEL_NAME, NotificationManager.IMPORTANCE_HIGH); //如果这里用IMPORTANCE_NOENE就需要在系统的设置里面开启渠道， //通知才能正常弹出  
  mManager.createNotificationChannel(notificationChannel);
  builder = new Notification.Builder(this,Config.CHANNEL_ID);
 } 
notification = builder.build();
mManager.notify(555, notification);

 部分机型使用IMPORTANCE_LOW MIN NONE仍然发出提示音问题，修改channelId，可以解决