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React 懒加载组件
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//组件第一次初始化的时候加载.
import React, {PropTypes} from ‘react‘; //import AppComposer from ‘./views/App/AppComposer‘; //import LoginComposer from ‘./views/Login/LoginComposer‘; //import HomeComposer from ‘./views/Home/HomeComposer‘; //import WatchListComposer from ‘./views/WatchList/WatchListComposer‘; //import SystemLogComposer from ‘./views/SystemLog/SystemLogComposer‘; //import TeamManageComposer from ‘./views/TeamManage/TeamManageComposer‘; //import {UserQueryPage} from ‘./views/UserQuery/UserQueryComposer‘; //import ClosedCaseComposer from ‘./views/ClosedCase/ClosedCaseComposer‘; //import AccountInfoComposer from ‘./views/AccountInfo/AccountInfoComposer‘; function createLazyLoadComponent(doLoadComponent){ returnclass newClassComponent extends React.Component{ constructor(){ super(...arguments); this.state = { RealComponent : null }; } componentDidMount(){ //组件第一次初始化的时候加载. doLoadComponent((pageComponent)=>{ this.setState({ RealComponent:pageComponent }); }); } render(){ var {RealComponent} = this.state; var props = this.props; if (RealComponent){ return <RealComponent {...props} /> } return <div>loading...</div> } } } export const LoginComposer = createLazyLoadComponent((onLoadCallback)=>{ require([‘./views/Login/LoginComposer‘], onLoadCallback); }); export const HomeComposer = createLazyLoadComponent((onLoadCallback)=>{ require([‘./views/Home/HomeComposer‘], onLoadCallback); }); export const WatchListComposer = createLazyLoadComponent((onLoadCallback)=>{ require([‘./views/WatchList/WatchListComposer‘], onLoadCallback); }); export const SystemLogComposer = createLazyLoadComponent((onLoadCallback)=>{ require([‘./views/SystemLog/SystemLogComposer‘], onLoadCallback); }); export const TeamManageComposer = createLazyLoadComponent((onLoadCallback)=>{ require([‘./views/TeamManage/TeamManageComposer‘], onLoadCallback); }); export const ClosedCaseComposer = createLazyLoadComponent((onLoadCallback)=>{ require([‘./views/ClosedCase/ClosedCaseComposer‘], onLoadCallback); }); export const AccountInfoComposer = createLazyLoadComponent((onLoadCallback)=>{ require([‘./views/AccountInfo/AccountInfoComposer‘], onLoadCallback); }); export const UserQueryPage = createLazyLoadComponent((onLoadCallback)=>{ require([‘./views/UserQuery/UserQueryComposer‘], ({UserQueryPage})=>{ onLoadCallback(UserQueryPage); }); });
原文:http://www.cnblogs.com/lhp2012/p/6279782.html
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