HarmonyOS 使用audio.createAudioCapturer开发音频录制功能，调用audioCapturer.stop的时候报错 error：\{ code: 600301, message: "system error" \}？

Question

如题：HarmonyOS 使用audio.createAudioCapturer开发音频录制功能，调用audioCapturer.stop的时候报错 error：{ code: 600301, message: "system error" }？

Answer 1

请参考demo：

// 停止采集
function stop() {
  if (audioCapturer !== undefined) {
    // 只有采集器状态为STATE_RUNNING或STATE_PAUSED的时候才可以停止
    if ((audioCapturer as audio.AudioCapturer).state.valueOf() !== audio.AudioState.STATE_RUNNING && (audioCapturer as audio.AudioCapturer).state.valueOf() !== audio.AudioState.STATE_PAUSED) {
      console.info('Capturer is not running or paused');
      return;
    }
    //停止采集
    (audioCapturer as audio.AudioCapturer).stop((err: BusinessError) => {
      if (err) {
        console.error('Capturer stop failed.');
      } else {
        console.info('Capturer stop success.');
      }
    });
  }
}