HarmonyOS 鸿蒙Next 使用AVPlayer播放短促音效时有明显延迟

调用时

avp: AVPlayerDemo = new AVPlayerDemo(）

Button().onClick(() => {
  this.avp.avPlayerFdSrcDemo()
})

按下按钮后总是过100-200毫秒才播放音效，并不是点击后马上播放。我也尝试过将await部分的逻辑单独抽取到init中提前执行，但是没有效果。

我下载过其他app带有点击按钮播放音效的，没有出现延迟现象。应该是我使用api有问题，但是看不出是哪里的问题，求大神帮助。

以下是代码，就是官方demo中的代码，把case ‘playing’:里面的bug去掉了

export class AVPlayerDemo {
  private avPlayer;

  setAVPlayerCallback() {
    this.avPlayer.on(‘seekDone’, (seekDoneTime) => {
      console.info(AVPlayer seek succeeded, seek time is ${seekDoneTime});
    })
    this.avPlayer.on(‘error’, (err) => {
      console.error(Invoke avPlayer failed, code is ${err.code}, message is ${err.message});
      this.avPlayer.reset();
    })
    this.avPlayer.on(‘stateChange’, async (state, reason) => {
      switch (state) {
        case ‘idle’:
          console.info(‘AVPlayer state idle called.’);
          this.avPlayer.release();
          break;
        case ‘initialized’:
          await this.avPlayer.prepare()
          break;
        case ‘prepared’:
          console.info(‘AVPlayer state prepared called.’);
          this.avPlayer.play();
          break;
        case ‘playing’:
          console.info(‘AVPlayer state playing called.’);
          break;
        case ‘paused’:
          console.info(‘AVPlayer state paused called.’);
          this.avPlayer.play();
          break;
        case ‘completed’:
          console.info(‘AVPlayer state completed called.’);
          this.avPlayer.stop();
          break;
        case ‘stopped’:
          console.info(‘AVPlayer state stopped called.’);
          this.avPlayer.reset();
          break;
        case ‘released’:
          console.info(‘AVPlayer state released called.’);
          break;
        default:
          console.info(‘AVPlayer state unknown called.’);
          break;
      }
    })
  }


  public async avPlayerFdSrcDemo() {
    this.avPlayer = await media.createAVPlayer();
    this.setAVPlayerCallback();
    let context = getContext(this) as common.UIAbilityContext;
    let fileDescriptor = await context.resourceManager.getRawFd(‘click_def0.mp3’);
    this.avPlayer.fdSrc = fileDescriptor;
  }