#鸿蒙通关秘籍#如何在鸿蒙视频播放器中实现线程间通信以更新页面状态？

static async updateState() {
  const data = {
    playState: JSON.stringify({
      duration: VideoAVPlayerClass.duration,
      time: VideoAVPlayerClass.time,
      isPlay: VideoAVPlayerClass.isPlay,
      playIndex: VideoAVPlayerClass.playIndex,
      playList: VideoAVPlayerClass.playList,
    })
  };
  emitter.emit({ eventId: EmitEventType.UPDATE_STATE }, { data });
}
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@State
playState: VideoPlayStateType = new VideoPlayStateTypeModel({} as VideoPlayStateType);

async aboutToAppear() {
  emitter.on({ eventId: EmitEventType.UPDATE_STATE }, (data) => {
    this.playState = new VideoPlayStateTypeModel(JSON.parse(data.data.playState));
  });
}
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