react 监听可视窗口宽度 动态修改antd menu 宽度

constructor(props){
    super(props);
    this.state = {
      collapsed:false
    }
  }

  handleClientW = (width,num)=>{
    if(width < num){
      this.setState({
        collapsed:true
      })
    }else{
      this.setState({
        collapsed:false
      })
    }
  }
  componentDidMount() {
    window.addEventListener('resize', this.handleResize.bind(this)) //监听窗口大小改变
    let clientW = document.documentElement.clientWidth;
    this.handleClientW(clientW,1040);
  }
  handleResize = e => {
    let e_width = e.target.innerWidth;
    this.handleClientW(e_width,1040);
    // console.log('浏览器窗口大小改变事件', e.target.innerWidth);
  }
  componentWillUnmount() {       
    window.removeEventListener('resize', this.handleResize.bind(this));
  }