RN
2020-10-22 本文已影响0人
苹果雪梨渣
核心库 :react-native-web
npm install --save react-native-web (当前集成的是0.14.3)
安装babel及相关 preset / plugin
npm install --save-dev @babel/core (当前集成的7.12.3)
npm install --save-dev @babel/runtime (当前集成的7.12.1)
npm install --save-dev @babel/preset-env (当前集成的7.12.1)
npm install --save-dev @babel/preset-react (当前集成的7.12.1)
npm install --save-dev @babel/preset-flow (当前集成的7.12.1)
安装WebPack 与 WebPackSever 和及相关Loader
npm install --save-dev webpack (当前集成的4.31.0)
npm install --save-dev webpack-cli (当前集成的3.3.2)
npm install --save-dev webpack-dev-server (当前集成的3.3.1)
npm install --save-dev babel-loader (当前集成的8.1.0)
npm install --save-dev react-dom (当前集成的17.0.0)
npm install --save-dev babel-plugin-transform-class-properties (当前集成的6.24.1)
项目根目录下找到 babel.config.js文件
module.exports = {
presets: [
'module:metro-react-native-babel-preset',
[
"@babel/preset-env", {
"modules": "commonjs"
}
],
"@babel/preset-react",
"@babel/preset-flow"
],
plugins: [
[
"transform-class-properties"
]
]
};
项目根目录 创建文件夹 index.html
<!DOCTYPE html>
<html lang="en" style="height:100%">
<head>
<meta charset="UTF-8">
<title>React Native Web In Superbuy App</title>
<meta name="viewport" content="initial-scale=1.0,width=device-width">
<style>
html, body { height: 100%; width: 100%; overflow: hidden; }
.react-app { height: 100%; overflow: hidden; }
</style>
</head>
<body style="height:100%">
<div id="react-app" style="display:flex;height:100%">
</div>
<script src="./build/RN.web.js"></script>
</body>
</html>
项目根目录 找到 index.js
import {AppRegistry,Platform} from 'react-native';
import App from './App';
import {name as appName} from './app.json';
AppRegistry.registerComponent(appName, () => App);
if(Platform.OS === 'web' ){
AppRegistry.runApplication(appName, {
initialProps: {},
rootTag: document.getElementById('react-app')
});
}
项目根目录 找到 APP.js 注释里面所有文件
import React, {
Component
} from 'react';
import {
StyleSheet,
View,
Text,
FlatList,
InteractionManager,
Image,
} from 'react-native';
export default class App extends Component {
constructor(props) {
super(props)
this.state = {
dataSource: [],
};
}
componentDidMount() {
console.ignoredYellowBox = [
'Warning: componentWillUpdate has been renamed',
'Warning: componentWillMount has been renamed',
'Warning: componentWillReceiveProps has been renamed',
'Warning: codePush.SyncStatus'
// 'Warning: isMounted(...) is deprecated',
]
console.disableYellowBox = true
let newArray = []
for (let i = 0; i < 10; i++) {
let dict = {title:"标题",image:'https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1603344640367&di=1831eb733035d39e970b0a22110e3b1b&imgtype=0&src=http%3A%2F%2Fa0.att.hudong.com%2F70%2F91%2F01300000261284122542917592865.jpg'}
newArray.push(dict)
}
InteractionManager.runAfterInteractions(() => {
//执行耗时的同步任务
this.setState({dataSource: newArray});
});
}
render() {
return (
<View style={{flex:1}}>
<FlatList
keyExtractor={(item, index) => item.key = index.toString()}
ListHeaderComponent={this.renderHeader}
renderItem={this.renderItem}
ref={(flatList)=>this.flatList = flatList}
data={this.state.dataSource}
ItemSeparatorComponent={()=> {
return <View style={{height:10,width:'100%',backgroundColor:'lightgray'}}/>
}}
/>
</View>
);
}
renderHeader =()=>{
return (
<View style={{paddingTop:44,height:100,backgroundColor:'red',justifyContent:'center',alignItems:'center'}}>
<Text>头部</Text>
</View>
)
}
renderItem =(item)=> {
let rowData = item.item;
let Index = rowData.key;
return ( <View style={{
backgroundColor: 'white',
height: 100,
justifyContent: 'space-between',
paddingHorizontal: 10,
flexDirection: 'row',
alignItems:'center'
}}>
<Text>{rowData.title} {Index}</Text>
<Image style={{height:70,width:70}} source={{uri:rowData.image}}/>
</View>
)
}
};
const styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
backgroundColor: '#F5FCFF',
},
});
项目根目录 创建文件夹 webpack.config.js
const path = require('path');
module.exports = {
entry: './index.js',
output: {
filename: 'RN.web.js',
path: path.resolve(__dirname, 'build'),
},
mode: 'development',
module: {
rules: [
{
test: /\.js$/,
exclude: /(node_modules|bower_components)/,
use: {
loader: 'babel-loader',
// options: {
// presets: ['@babel/preset-env']
// }
}
}
]
},
resolve: {
alias: {
'react-native$': 'react-native-web'
}
},
devServer: {
contentBase: path.join(__dirname, ""), //本地服务器所加载的页面所在的目录
historyApiFallback: true,//不跳转
host:'0.0.0.0',
port:7000,
inline: true,//实时刷新
hot:true,//Enable webpack's Hot Module Replacement feature
compress:true,//Enable gzip compression for everything served
overlay: true, //Shows a full-screen overlay in the browser
stats: "errors-only" ,//To show only errors in your bundle
open:true, //When open is enabled, the dev server will open the browser.
proxy: {
"/api": {
target: "http://localhost:3000",
pathRewrite: {"^/api" : ""}
}
}
}
}
项目根目录 找到 package.json
- 增加打包命令(开发)
- 增加打包命令(生产)
- 增加打开服务器命令
scripts": {
"dev": "webpack --mode development",
"build": "webpack --mode production",
"server": "webpack-dev-server"
},
当前项目根目录 打开终端输入 一下指令
npm run dev
npm run server
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