小编Ily*_*ert的帖子

我正在使用 react-native-camera RNCamera 组件来录制视频。主要任务是在聊天窗口录制上传和预览，但是我无法获取视频。RNCamerarecordAsync(options)命令将其作为缓存保存到本地缓存文件夹中，我无法从文件夹中获取它。我尝试使用 fetch-blob 但它返回的文件大小为 0。我做错了什么？

import {RNCamera} from 'react-native-camera';
import RNFetchBlob from 'react-native-fetch-blob';
constructor(props) {
    super(props);
     this.state = {
      path: "",
      recorded: false,
      isRecording: false,
    }
}

takeVideo() { 
    this.state.isRecording ?  this.stopRecord() : this.saveVideo();
    this.state.isRecording ? this.setState({isRecording: false}) : this.setState({isRecording: true})
  }

  async stopRecord(){
    this.camera.stopRecording();
    const { config, fs, android } = RNFetchBlob;
    const str = this.state.path;
    const fileName = str.substr(str.indexOf("Camera")+7, str.indexOf(".mp4"));
    const path = fs.dirs.CacheDir + '/Camera/'+fileName;

    const res = await fetch(str);
    const blob = …