不确定这是否是最好的方法，但对我来说有效的方法是首先创建一个商店，我称之为WindowStore:

import {assign, events} from '../../libs';
import Dispatcher from '../dispatcher';
import Constants from '../constants';

let CHANGE_EVENT = 'change';
let defaults = () => {
    return {
        name: 'window',
        width: undefined,
        height: undefined,
        bps: {
            1: 400,
            2: 600,
            3: 800,
            4: 1000,
            5: 1200,
            6: 1400
        }
    };
};
let save = function(object, key, value) {
    // Save within storage
    if(object) {
        object[key] = value;
    }

    // Persist to local storage
    sessionStorage[storage.name] = JSON.stringify(storage);
};
let storage;

let Store = assign({}, events.EventEmitter.prototype, {
    addChangeListener: function(callback) {
        this.on(CHANGE_EVENT, callback);
        window.addEventListener('resize', () => {
            this.updateDimensions();
            this.emitChange();
        });
    },
    emitChange: function() {
        this.emit(CHANGE_EVENT);
    },
    get: function(keys) {
        let value = storage;

        for(let key in keys) {
            value = value[keys[key]];
        }

        return value;
    },
    initialize: function() {
        // Set defaults
        storage = defaults();
        save();
        this.updateDimensions();
    },
    removeChangeListener: function(callback) {
        this.removeListener(CHANGE_EVENT, callback);
        window.removeEventListener('resize', () => {
            this.updateDimensions();
            this.emitChange();
        });
    },
    updateDimensions: function() {
        storage.width =
            window.innerWidth ||
            document.documentElement.clientWidth ||
            document.body.clientWidth;
        storage.height =
            window.innerHeight ||
            document.documentElement.clientHeight ||
            document.body.clientHeight;
        save();
    }
});

export default Store;

然后我在我的组件中使用这个存储，就像这样:

import WindowStore from '../stores/window';

let getState = () => {
    return {
        windowWidth: WindowStore.get(['width']),
        windowBps: WindowStore.get(['bps'])
    };
};

export default React.createClass(assign({}, base, {
    getInitialState: function() {
        WindowStore.initialize();

        return getState();
    },
    componentDidMount: function() {
        WindowStore.addChangeListener(this._onChange);
    },
    componentWillUnmount: function() {
        WindowStore.removeChangeListener(this._onChange);
    },
    render: function() {
        if(this.state.windowWidth < this.state.windowBps[2] - 1) {
            // do something
        }

        // return
        return something;
    },
    _onChange: function() {
        this.setState(getState());
    }
}));

供你参考，这些文件被部分删减了。

2020年更新。对于认真关注性能的React开发人员。

上述解决方案确实有效，但只要窗口大小改变一个像素，就会重新渲染组件。

这通常会导致性能问题，所以我写了useWindowDimension钩子，在短时间内反弹调整大小事件。如100毫秒

import React, { useState, useEffect } from 'react';

export function useWindowDimension() {
  const [dimension, setDimension] = useState([
    window.innerWidth,
    window.innerHeight,
  ]);
  useEffect(() => {
    const debouncedResizeHandler = debounce(() => {
      console.log('***** debounced resize'); // See the cool difference in console
      setDimension([window.innerWidth, window.innerHeight]);
    }, 100); // 100ms
    window.addEventListener('resize', debouncedResizeHandler);
    return () => window.removeEventListener('resize', debouncedResizeHandler);
  }, []); // Note this empty array. this effect should run only on mount and unmount
  return dimension;
}

function debounce(fn, ms) {
  let timer;
  return _ => {
    clearTimeout(timer);
    timer = setTimeout(_ => {
      timer = null;
      fn.apply(this, arguments);
    }, ms);
  };
}

像这样使用它。

function YourComponent() {
  const [width, height] = useWindowDimension();
  return <>Window width: {width}, Window height: {height}</>;
}

只是为了改进@senornestor使用forceUpdate的解决方案和@gkri在组件卸载时删除resize事件监听器的解决方案:

不要忘记抑制(或撤消)调整大小的要求 确保在构造函数中绑定(this)

import React from 'react'
import { throttle } from 'lodash'

class Foo extends React.Component {
  constructor(props) {
    super(props)
    this.resize = throttle(this.resize.bind(this), 100)
  }

  resize = () => this.forceUpdate()

  componentDidMount() {
    window.addEventListener('resize', this.resize)
  }

  componentWillUnmount() {
    window.removeEventListener('resize', this.resize)
  }

  render() {
    return (
      <div>{window.innerWidth} x {window.innerHeight}</div>
    )
  }
}

另一种方法是使用一个“dummy”状态来代替forceUpdate:

import React from 'react'
import { throttle } from 'lodash'

class Foo extends React.Component {
  constructor(props) {
    super(props)
    this.state = { foo: 1 }
    this.resize = throttle(this.resize.bind(this), 100)
  }

  resize = () => this.setState({ foo: 1 })

  componentDidMount() {
    window.addEventListener('resize', this.resize)
  }

  componentWillUnmount() {
    window.removeEventListener('resize', this.resize)
  }

  render() {
    return (
      <div>{window.innerWidth} x {window.innerHeight}</div>
    )
  }
}

componentDidMount() {

    // Handle resize
    window.addEventListener('resize', this.handleResize);
}




handleResize = () => {
    this.renderer.setSize(this.mount.clientWidth, this.mount.clientHeight);
    this.camera.aspect = this.mount.clientWidth / this.mount.clientHeight;
    this.camera.updateProjectionMatrix();
};

只需要定义调整大小事件函数。

然后更新渲染器的大小(画布)，为相机分配一个新的纵横比。

卸载和重挂在我看来是一个疯狂的解决方案....

下面是底座，如果需要的话。

            <div
                className={this.state.canvasActive ? 'canvasContainer isActive' : 'canvasContainer'}
                ref={mount => {
                    this.mount = mount;
                }}
            />

@SophieAlpert是对的，+1，我只是想提供一个她的解决方案的修改版本，没有jQuery，基于这个答案。

var WindowDimensions = React.createClass({
    render: function() {
        return <span>{this.state.width} x {this.state.height}</span>;
    },
    updateDimensions: function() {

    var w = window,
        d = document,
        documentElement = d.documentElement,
        body = d.getElementsByTagName('body')[0],
        width = w.innerWidth || documentElement.clientWidth || body.clientWidth,
        height = w.innerHeight|| documentElement.clientHeight|| body.clientHeight;

        this.setState({width: width, height: height});
        // if you are using ES2015 I'm pretty sure you can do this: this.setState({width, height});
    },
    componentWillMount: function() {
        this.updateDimensions();
    },
    componentDidMount: function() {
        window.addEventListener("resize", this.updateDimensions);
    },
    componentWillUnmount: function() {
        window.removeEventListener("resize", this.updateDimensions);
    }
});

必须将它绑定到构造函数中的“this”以使其与类语法一起工作

class MyComponent extends React.Component {
  constructor(props) {
    super(props)
    this.resize = this.resize.bind(this)      
  }
  componentDidMount() {
    window.addEventListener('resize', this.resize)
  }
  componentWillUnmount() {
    window.removeEventListener('resize', this.resize)
  }
}