在react本机中检测2个手指滑动方向

import React, { Component } from 'react';

class SwipeDetector extends Component {
  constructor(props) {
    super(props);
    this.startX = 0;
    this.startY = 0;
  }

  handleTouchStart(event) {
    const touch = event.touches[0];
    this.startX = touch.clientX;
    this.startY = touch.clientY;
  }

  handleTouchMove(event) {
    if (event.touches.length > 1) {
      const touch = event.touches[0];
      const deltaX = touch.clientX - this.startX;
      const deltaY = touch.clientY - this.startY;
      
      // 根据 deltaX 和 deltaY 的值判断手指滑动的方向
      // 进行相应的操作
    }
  }

  handleTouchEnd(event) {
    // 判断手指滑动结束的情况
  }

  render() {
    return (
      <div
        onTouchStart={this.handleTouchStart}
        onTouchMove={this.handleTouchMove}
        onTouchEnd={this.handleTouchEnd}
      >
        {/* 其他组件内容 */}
      </div>
    );
  }
}

export default SwipeDetector;