componentDidMount() { // 给全局绑定一个修改分辨率的操作, 当窗口发生变化的时候就修改分辨率,加入了防抖操作 window.addEventListener("resize", debounce(300, false, this.handleResize.bind(this))) } render() { const {w_height, w_width, iconLocList } = this.state return ( ) } } // 使用...
我是size的父亲,点击获取我儿子的size为:{this.state.size} <Childcomponent ref = {reftest => this.reftest = reftest} /> ) } } class Childcomponent extends React.Component { state = { size: 80 } constructor (props) { super(props) } getSize(){ return this.state.size } changeSize =...
onDuringResize onStopResize onEachStep options minHeight minWidth maxHeight maxWidth lockAspectRatio step cursorMargin allowGhostResize styles className cssStyles 1. Children A child component must be provided, if not an error would be thrown. If you have no child component, just put it adivwith...
ThehandleWrapperClassproperty is used to override the className of resize handles wrapper. enable?: ?Enable; Theenableproperty is used to set the resizable permission of a resizable component. The permission oftop,right,bottom,left,topRight,bottomRight,bottomLeft,topLeftdirection resizing. If omitted...
resizeHandleWrapperStyle?: Style;The resizeHandleWrapperStyle property is used to set css class name of resize handle wrapper(span) element.enableResizing?: ?Enable;The enableResizing property is used to set the resizable permission of the component....
ComponentDidMount 将是设置观察者的最佳位置,但您还想断开连接 ComponentWillUnmount。 class MyComponent extends React.Component { resizeObserver = null; resizeElement = createRef(); componentDidMount() { this.resizeObserver = new ResizeObserver((entries) => { // do things }); this.resizeObserver.obse...
在React组件的CSS样式中,将resize属性设置为both,以允许水平和垂直方向的调整大小。同时,设置overflow属性为auto,以便在调整大小时出现滚动条。 代码语言:javascript 复制 .resizeable-component{resize:both;overflow:auto;} 在React组件的JavaScript代码中,使用onMouseDown事件处理程序来开始调整大小,并使用onMouseUp事件处理...
import React from 'react'; import LargeChildComponent from './LargeChildComponent'; import SmallChildComponent from './SmallChildComponent'; import sizeMe from 'react-sizeme'; function MyComponent(props) { const { width, height } = props.size; const ToRenderChild = height > 600 ? LargeChild...
importReact,{Component}from'react';importReactDOMfrom'react-dom';import{Resizable}from're-resizable';interfacePosition{x:number;y:number;}interfaceBaseReferProps{}interfaceBaseReferInnerProps{resizePosition?:Position;}classBaseReferextendsComponent<BaseReferProps,BaseReferInnerProps>{position:Position|null;co...
componentDidCatch(error, info) 这两个新的生命周期函数也是在 React v16 引入的。getDerivedStateFromError()被设计用于捕获 Render Phase 中的异常,会在 Render Phase 调用,因此不希望其中产生副作用,所以也被设计为静态方法。相对的componentDidCatch()用于在 Commit Phase 阶段捕获异常。