如果上传到服务器的数据失败，则保留组件的状态- react native

import React, { Component } from 'react';
import { View, Text, Button } from 'react-native';
import { connect } from 'react-redux';
import { uploadData } from './actions';

class UploadComponent extends Component {
  handleUpload = () => {
    const { data, uploadData } = this.props;
    // 调用上传数据的函数
    uploadData(data);
  }

  render() {
    const { uploadStatus, uploadedData } = this.props;
    return (
      <View>
        {uploadStatus === 'failed' && <Text>上传失败，请重试</Text>}
        {uploadedData && <Text>上次上传的数据：{uploadedData}</Text>}
        <Button title="上传数据" onPress={this.handleUpload} />
      </View>
    );
  }
}

const mapStateToProps = state => ({
  uploadStatus: state.uploadStatus,
  uploadedData: state.uploadedData,
});

const mapDispatchToProps = dispatch => ({
  uploadData: data => dispatch(uploadData(data)),
});

export default connect(mapStateToProps, mapDispatchToProps)(UploadComponent);