taro多端实例|仿微信界面app聊天|taro聊天

2019-12-16 11:17:44 浏览数 (1)

taro-chatroom多端实战项目是基于taro react redux reactNative等技术开发的仿微信界面聊天实例，实现了消息发送、动图表情、图片查看、红包/朋友圈、小组等功能。

支持编译到多端：h5 小程序 app端 ，效果图如下：

技术实现：

  • 编码/技术：VScode react/taro/redux/reactNative
  • iconfont图标：阿里字体图标库
  • 自定义导航栏Navigation 底部Tabbar
  • 弹窗组件：taroPop（基于Taro封装自定义模态框）
  • 支持编译：H5端 小程序 app端

页面入口app.jsx配置

代码语言：javascript复制
/**
  * @desc   Taro入口页面 app.jsx
  * @about  Q：282310962  wx：xy190310
  */

import Taro, { Component } from '@tarojs/taro'
import Index from './pages/index'

// 引入状态管理redux
import { Provider } from '@tarojs/redux'
import { store } from './store'

// 引入样式
import './app.scss'
import './styles/fonts/iconfont.css'
import './styles/reset.scss'

class App extends Component {
  config = {
    pages: [
      'pages/auth/login/index',
      'pages/auth/register/index',
      'pages/index/index',
      ...
    ],
    window: {
      backgroundTextStyle: 'light',
      navigationBarBackgroundColor: '#fff',
      navigationBarTitleText: 'TaroChat',
      navigationBarTextStyle: 'black',
      navigationStyle: 'custom'
    }
  }
  
  // 在 App 类中的 render() 函数没有实际作用
  // 请勿修改此函数
  render () {
    return (
      <Provider store={store}>
        <Index />
      </Provider>
    )
  }
}

Taro.render(<App />, document.getElementById('app'))

taro中通过如下方式配置页面路径及全局窗口配置

代码语言：javascript复制
config = {
    pages: [
      'pages/auth/login/index',
      'pages/auth/register/index',
      'pages/index/index',
      ...
    ],
    window: {
      backgroundTextStyle: 'light',
      navigationBarBackgroundColor: '#fff',
      navigationBarTitleText: 'TaroChat',
      navigationBarTextStyle: 'black',
      navigationStyle: 'custom'
    }
}

项目中顶部导航条及底部tabbar均为自定义组件模式，这里不多介绍，可以去看之前的分享文章

Taro实现自定义导航栏 Tabbar菜单

Taro仿ios/android对话框|模态框

taro实现登录表单验证、状态管理、本地存储

代码语言：javascript复制
<Input placeholder="请输入手机号/昵称" onInput={this.handleInput.bind(this, 'tel')} />
代码语言：javascript复制
this.state = {
	tel: '',
	pwd: '',
}

handleInput = (key, e) => {
    this.setState({ [key]: e.detail.value })
}

通过上面方法就可以简单实现获取input值了。更详细介绍如下：

代码语言：javascript复制
<View className="taro__container flexDC bg-eef1f5">
	<Navigation background='#eef1f5' fixed />
	
	<ScrollView className="taro__scrollview flex1" scrollY>
		<View className="auth-lgreg">
			{/* logo */}
			<View className="auth-lgreg__slogan">
				<View className="auth-lgreg__slogan-logo">
					<Image className="auth-lgreg__slogan-logo__img" src={require('../../../assets/taro.png')} mode="aspectFit" />
				</View>
				<Text className="auth-lgreg__slogan-text">欢迎来到Taro-Chatroom</Text>
			</View>
			{/* 表单 */}
			<View className="auth-lgreg__forms">
				<View className="auth-lgreg__forms-wrap">
					<View className="auth-lgreg__forms-item">
						<Input className="auth-lgreg__forms-iptxt flex1" placeholder="请输入手机号/昵称" onInput={this.handleInput.bind(this, 'tel')} />
					</View>
					<View className="auth-lgreg__forms-item">
						<Input className="auth-lgreg__forms-iptxt flex1" placeholder="请输入密码" password onInput={this.handleInput.bind(this, 'pwd')} />
					</View>
				</View>
				<View className="auth-lgreg__forms-action">
					<TouchView onClick={this.handleSubmit}><Text className="auth-lgreg__forms-action__btn">登录</Text></TouchView>
				</View>
				<View className="auth-lgreg__forms-link">
					<Text className="auth-lgreg__forms-link__nav">忘记密码</Text>
					<Text className="auth-lgreg__forms-link__nav" onClick={this.GoToRegister}>注册账号</Text>
				</View>
			</View>
		</View>
	</ScrollView>

	<TaroPop ref="taroPop" />
</View>
代码语言：javascript复制
/**
 * @tpl 登录模板
 */

import Taro from '@tarojs/taro'
import { View, Text, ScrollView, Image, Input, Button } from '@tarojs/components'

import './index.scss'

import { connect } from '@tarojs/redux'
import * as actions from '../../../store/action'...

class Login extends Taro.Component {
    config = {
        navigationBarTitleText: '登录'
    }
    constructor(props) {
        super(props)
        this.state = {
            tel: '',
            pwd: '',
        }
    }
    componentWillMount() {
        // 判断是否登录
        storage.get('hasLogin').then(res => {
            if(res && res.hasLogin) {
                Taro.navigateTo({url: '/pages/index/index'})
            }
        })
    }
    // 提交表单
    handleSubmit = () => {
        let taroPop = this.refs.taroPop
        let { tel, pwd } = this.state

        if(!tel) {
            taroPop.show({content: '手机号不能为空', time: 2})
        }else if(!util.checkTel(tel)) {
            taroPop.show({content: '手机号格式有误', time: 2})
        }else if(!pwd) {
            taroPop.show({content: '密码不能为空', time: 2})
        }else {
            // ...接口数据
            ...
            
            storage.set('hasLogin', { hasLogin: true })
            storage.set('user', { username: tel })
            storage.set('token', { token: util.setToken() })

            taroPop.show({
                skin: 'toast',
                content: '登录成功',
                icon: 'success',
                time: 2
            })
            
            ...
        }
    }
    
    render () {
        ...
    }
}

const mapStateToProps = (state) => {
    return {...state.auth}
}

export default connect(mapStateToProps, {
    ...actions
})(Login)

需要注意的是 taro中编译到RN端 不支持同步存储setStorage，只能使用setStorageSync异步存储了

对于一些兼容样式，不编译到RN端，则可通过如下代码包裹实现

/*postcss-pxtransform rn eject enable*/

/*postcss-pxtransform rn eject disable*/

taro滚动聊天消息底部

在taro中实现聊天消息滚动到底部也需要兼容处理，由于RN端不支持 createSelectorQuery

代码语言：javascript复制
// 滚动至聊天底部
scrollMsgBottom = () => {
    let query = Taro.createSelectorQuery()
    query.select('#scrollview').boundingClientRect()
    query.select('#msglistview').boundingClientRect()
    query.exec((res) => {
        // console.log(res)
        if(res[1].height > res[0].height) {
            this.setState({ scrollTop: res[1].height - res[0].height })
        }
    })
}
scrollMsgBottomRN = (t) => {
    let that = this
    this._timer = setTimeout(() => {
        that.refs.ScrollViewRN.scrollToEnd({animated: false})
    }, t ? 16 : 0)
}
代码语言：javascript复制
componentDidMount() {
    if(process.env.TARO_ENV === 'rn') {
        this.scrollMsgBottomRN()
    }else {
        this.scrollMsgBottom()
    }
}

taro提供环境变量来支持不同平台的兼容性

代码语言：javascript复制
let taroEnv = process.env.TARO_ENV
if(taroEnv === 'rn') {
	...
}else if(taroEnv === 'weapp') {
	...
}else if(taroEnv === 'h5') {
	...
}
代码语言：javascript复制
// 渲染消息记录
renderMsgTpl = (data) => {
	return data.map((item, index) => (
		<View key={index}>
			{item.msgtype == 1 && 
			<View className="msgitem msg__time"><Text className="msg__text">{item.msg}</Text></View>
			}
			
			{item.msgtype == 2 && 
			<View className="msgitem msg__notice"><Text className="msg__text">{item.msg}</Text></View>
			}
			
			{item.msgtype == 3 && 
			<View className="msgitem">
				{!item.isme ? <View className="msg__avator"><Image className="msg__avator-img" src={item.avator} mode="aspectFit" /></View> : null}
				<View className={`msg__cntbox ${item.isme ? 'msg-me' : 'msg-others'}`}>
					<Text className="msg-author">{item.author}</Text>
					<View className={`msg__cnt ${item.isme ? 'msg__cnt-me' : 'msg__cnt-others'}`} onLongPress={this.handleLongPressMenu}>
						<Text className="msg__cnt-text">{item.msg}</Text>
					</View>
				</View>
				{item.isme ? <View className="msg__avator"><Image className="msg__avator-img" src={item.avator} mode="aspectFit" /></View> : null}
			</View>
			}
			
			{item.msgtype == 4 && 
			<View className="msgitem">
				{!item.isme ? <View className="msg__avator"><Image className="msg__avator-img" src={item.avator} mode="aspectFit" /></View> : null}
				<View className={`msg__cntbox ${item.isme ? 'msg-me' : 'msg-others'}`}>
					<Text className="msg-author">{item.author}</Text>
					<View className={`msg__cnt ${item.isme ? 'msg__cnt-me' : 'msg__cnt-others'} msg__lgface`} onLongPress={this.handleLongPressMenu}>
						<Image className="msg__lgface-img" src={item.imgsrc} mode="widthFix" />
					</View>
				</View>
				{item.isme ? <View className="msg__avator"><Image className="msg__avator-img" src={item.avator} mode="aspectFit" /></View> : null}
			</View>
			}
			
			{item.msgtype == 5 && 
			<View className="msgitem">
				{!item.isme ? <View className="msg__avator"><Image className="msg__avator-img" src={item.avator} mode="aspectFit" /></View> : null}
				<View className={`msg__cntbox ${item.isme ? 'msg-me' : 'msg-others'}`}>
					<Text className="msg-author">{item.author}</Text>
					<View className={`msg__cnt ${item.isme ? 'msg__cnt-me' : 'msg__cnt-others'} msg__picture`} onClick={this.handlePreviewPicture.bind(this, item.imgsrc)} onLongPress={this.handleLongPressMenu}>
						<Image className="msg__picture-img" src={item.imgsrc} mode="widthFix" />
					</View>
				</View>
				{item.isme ? <View className="msg__avator"><Image className="msg__avator-img" src={item.avator} mode="aspectFit" /></View> : null}
			</View>
			}
			
			...
		</View>
	))
}
代码语言：javascript复制
...

// 点击聊天消息区域
msgPanelClicked = () => {
	if(!this.state.showFootToolbar) return
	this.setState({ showFootToolbar: false })
}

// 表情、选择区切换
swtEmojChooseView = (index) => {
	this.setState({ showFootToolbar: true, showFootViewIndex: index })
}

// 底部表情tab切换
swtEmojTab = (index) => {
	let lists = this.state.emotionJson
	for(var i = 0, len = lists.length; i < len; i  ) {
		lists[i].selected = false
	}
	lists[index].selected = true
	this.setState({ emotionJson: lists })
}


/* >>> 【编辑器/表情处理模块】------------------------------------- */
bindEditorInput = (e) => {
	this.setState({
		editorText: e.detail.value,
		editorLastCursor: e.detail.cursor
	})
}
bindEditorFocus = (e) => {
	this.setState({ editorLastCursor: e.detail.cursor })
}
bindEditorBlur = (e) => {
	this.setState({ editorLastCursor: e.detail.cursor })
}

handleEmotionTaped = (emoj) => {
	if(emoj == 'del') return
	// 在光标处插入表情
	let { editorText, editorLastCursor } = this.state
	let lastCursor = editorLastCursor ? editorLastCursor : editorText.length
	let startStr = editorText.substr(0, lastCursor)
	let endStr = editorText.substr(lastCursor)
	this.setState({
		editorText: startStr   `${emoj} `   endStr
	})
}

...

好了，基于taro聊天实例项目到这里就介绍完了，希望能有些帮助！！

打包 react css postcss 小程序

0 人点赞