与react-native共享Pdf文件不起作用

Question

我已经通过WhatsApp，Google等社交应用程序使用react-native-share npm来共享pdf文件，但这给了我错误“共享失败，请重试”。下面是示例代码：-

sharePress = async () => {
let filePath = null;
const configOptions = { fileCache: true };
this.setState({
  spinner: true
}, () => {
  RNFetchBlob.config(configOptions)
    .fetch('GET', 'https://www.ets.org/Media/Tests/TOEFL/pdf/SampleQuestions.pdf') // pdf url 
    .then(resp => {
      filePath = resp.path();
      return resp.readFile('base64');
    })
    .then(base64Data => {
      this.setState({
                  spinner: false
                }, () => {
      base64Data = `data:application/pdf;base64,` + base64Data;
      Share.open({

        url: base64Data,

      }).then((res) => {
        console.log('CORTEX: TKT_371: send(): res: ' + res)
      })
        .catch((err) => { console.log('CORTEX: TKT_373: send(): error for some reason: ' + err); });
    });
  })
})

}