如何在React-Native中选择ListView的一项？

import React, { Component } from 'react';
import { View, Text, ListView, TouchableOpacity } from 'react-native';

class MyListView extends Component {
  constructor(props) {
    super(props);
    
    // 初始化数据源
    const dataSource = new ListView.DataSource({ rowHasChanged: (r1, r2) => r1 !== r2 });
    
    // 初始状态
    this.state = {
      selectedRow: null,
      data: [
        { id: 1, name: 'Item 1' },
        { id: 2, name: 'Item 2' },
        { id: 3, name: 'Item 3' },
      ],
      dataSource: dataSource.cloneWithRows([
        { id: 1, name: 'Item 1' },
        { id: 2, name: 'Item 2' },
        { id: 3, name: 'Item 3' },
      ]),
    };
  }
  
  // 选中某一项
  selectRow(row) {
    this.setState({ selectedRow: row });
  }
  
  // 渲染每一项
  renderRow(row) {
    const { selectedRow } = this.state;
    const isSelected = selectedRow && selectedRow.id === row.id;
    
    return (
      <TouchableOpacity onPress={() => this.selectRow(row)}>
        <View style={{ padding: 10, backgroundColor: isSelected ? 'gray' : 'white' }}>
          <Text>{row.name}</Text>
        </View>
      </TouchableOpacity>
    );
  }
  
  render() {
    return (
      <ListView
        dataSource={this.state.dataSource}
        renderRow={this.renderRow.bind(this)}
      />
    );
  }
}

export default MyListView;