HarmonyOS 播放M3U8,MP4有没有完整的案例demo

async avPlayerLiveDemo(){ 
  //创建avPlayer对象 
  let avPlayer: media.AVPlayer = await media.createAVPlayer(); 
  //创建状态机变化回调函数 
  this.setAVPlayerCallback(avPlayer); 
  this.isSeek = false; //不支持seek操作 
  avPlayer.url = 'http://xxx.xxx.xxx.xxx:xx/xx/index.m3u8'; //播放hls网络直播码流 
} 
}