react-native聊天室|RN版聊天App仿微信实例|RN仿微信界面-偶像资源网

一、前言

9月，又到开学的季节。为每个一直默默努力的自己点赞！最近都沉浸在react native原生app开发中，之前也有使用vue/react/angular等技术开发过聊天室项目，另外还使用RN技术做了个自定义模态弹窗rnPop组件。

一、项目简述

基于react+react-native+react-navigation+react-redux+react-native-swiper+rnPop等技术开发的仿微信原生App界面聊天室——RN_ChatRoom，实现了原生app启动页、AsyncStorage本地存储登录拦截、集成rnPop模态框功能(仿微信popupWindow弹窗菜单)、消息触摸列表、发送消息、表情(动图)，图片预览，拍摄图片、发红包、仿微信朋友圈等功能。

二、技术点

MVVM框架：react / react-native / react-native-cli
状态管理：react-redux / redux页面导航：react-navigationrn
弹窗组件：rnPop打包工具：webpack 2.0轮播组件：react-native-swiper
图片/相册：react-native-image-picker

{
 \"name\": \"RN_ChatRoom\",
 \"version\": \"0.0.1\",
 \"aboutMe\": \"QQ：282310962 、 wx：xy190310\",
 \"dependencies\": {
  \"react\": \"16.8.6\",
  \"react-native\": \"0.60.4\"
 },
 \"devDependencies\": {
  \"@babel/core\": \"^7.5.5\",
  \"@babel/runtime\": \"^7.5.5\",
  \"@react-native-community/async-storage\": \"^1.6.1\",
  \"@react-native-community/eslint-config\": \"^0.0.5\",
  \"babel-jest\": \"^24.8.0\",
  \"eslint\": \"^6.1.0\",
  \"jest\": \"^24.8.0\",
  \"metro-react-native-babel-preset\": \"^0.55.0\",
  \"react-native-gesture-handler\": \"^1.3.0\",
  \"react-native-image-picker\": \"^1.0.2\",
  \"react-native-swiper\": \"^1.5.14\",
  \"react-navigation\": \"^3.11.1\",
  \"react-redux\": \"^7.1.0\",
  \"react-test-renderer\": \"16.8.6\",
  \"redux\": \"^4.0.4\",
  \"redux-thunk\": \"^2.3.0\"
 },
 \"jest\": {
  \"preset\": \"react-native\"
 }
}

◆ App全屏幕启动页splash模板

react-native如何全屏启动？设置StatusBar顶部条背景为透明 translucent={true}，并配合RN动画Animated

/**
 * @desc 启动页面
 */

import React, { Component } from \'react\'
import { StatusBar, Animated, View, Text, Image } from \'react-native\'

export default class Splash extends Component{
  constructor(props){
    super(props)
    this.state = {
      animFadeIn: new Animated.Value(0),
      animFadeOut: new Animated.Value(1),
    }
  }

  render(){
    return (
      <Animated.View style={[GStyle.flex1DC_a_j, {backgroundColor: \'#1a4065\', opacity: this.state.animFadeOut}]}>
        <StatusBar backgroundColor=\'transparent\' barStyle=\'light-content\' translucent={true} />

        <View style={GStyle.flex1_a_j}>
          <Image source={require(\'../assets/img/ic_default.jpg\')} style={{borderRadius: 100, width: 100, height: 100}} />
        </View>
        <View style={[GStyle.align_c, {paddingVertical: 20}]}>
          <Text style={{color: \'#dbdbdb\', fontSize: 12, textAlign: \'center\',}}>RN-ChatRoom v1.0.0</Text>
        </View>
      </Animated.View>
    )
  }

  componentDidMount(){
    // 判断是否登录
    storage.get(\'hasLogin\', (err, object) => {
      setTimeout(() => {
        Animated.timing(
          this.state.animFadeOut, {duration: 300, toValue: 0}
        ).start(()=>{
          // 跳转页面
          util.navigationReset(this.props.navigation, (!err && object && object.hasLogin) ? \'Index\' : \'Login\')
        })
      }, 1500);
    })
  }
}

◆ RN本地存储技术async-storage

/**
 * @desc 本地存储函数
 */

import AsyncStorage from \'@react-native-community/async-storage\'

export default class Storage{
  static get(key, callback){
    return AsyncStorage.getItem(key, (err, object) => {
      callback(err, JSON.parse(object))
    })
  }

  static set(key, data, callback){
    return AsyncStorage.setItem(key, JSON.stringify(data), callback)
  }

  static del(key){
    return AsyncStorage.removeItem(key)
  }

  static clear(){
    AsyncStorage.clear()
  }
}

global.storage = Storage

声明全局global变量，只需在App.js页面一次引入、多个页面均可调用。

storage.set(\’hasLogin\’, { hasLogin: true })
storage.get(\’hasLogin\’, (err, object) => { … })

◆ App主页面模板及全局引入组件

import React, { Fragment, Component } from \'react\'
import { StatusBar } from \'react-native\'

// 引入公共js
import \'./src/utils/util\'
import \'./src/utils/storage\'

// 导入样式
import \'./src/assets/css/common\'
// 导入rnPop弹窗
import \'./src/assets/js/rnPop/rnPop.js\'

// 引入页面路由
import PageRouter from \'./src/router\'

class App extends Component{
 render(){
  return (
   <Fragment>
    {/* <StatusBar backgroundColor={GStyle.headerBackgroundColor} barStyle=\'light-content\' /> */}

    {/* 页面 */}
    <PageRouter />

    {/* 弹窗模板 */}
    <RNPop />
   </Fragment>
  )
 }
}

export default App

◆ react-navigation页面导航器/地址路由、底部tabbar

由于react-navigation官方顶部导航器不能满足需求，如是自己封装了一个，功能效果有些类似微信导航。

export default class HeaderBar extends Component {
  constructor(props){
    super(props)
    this.state = {
      searchInput: \'\'
    }
  }

  render() {
    /**
     * 更新
     * @param { navigation | 页面导航 }
     * @param { title | 标题 }
     * @param { center | 标题是否居中 }
     * @param { search | 是否显示搜索 }
     * @param { headerRight | 右侧Icon按钮 }
     */
    let{ navigation, title, bg, center, search, headerRight } = this.props

    return (
      <View style={GStyle.flex_col}>
        <StatusBar backgroundColor={bg ? bg : GStyle.headerBackgroundColor} barStyle=\'light-content\' translucent={true} />
        <View style={[styles.rnim__topBar, GStyle.flex_row, {backgroundColor: bg ? bg : GStyle.headerBackgroundColor}]}>
          {/* 返回 */}
          <TouchableOpacity style={[styles.iconBack]} activeOpacity={.5} onPress={this.goBack}><Text style={[GStyle.iconfont, GStyle.c_fff, GStyle.fs_18]}></Text></TouchableOpacity>
          {/* 标题 */}
          { !search && center ? <View style={GStyle.flex1} /> : null }
          {
            search ? 
            (
              <View style={[styles.barSearch, GStyle.flex1, GStyle.flex_row]}>
                <TextInput onChangeText={text=>{this.setState({searchInput: text})}} style={styles.barSearchText} placeholder=\'搜索\' placeholderTextColor=\'rgba(255,255,255,.6)\' />
              </View>
            )
            :
            (
              <View style={[styles.barTit, GStyle.flex1, GStyle.flex_row, center ? styles.barTitCenter : null]}>
                { title ? <Text style={[styles.barCell, {fontSize: 16, paddingLeft: 0}]}>{title}</Text> : null }
              </View>
            )
          }
          {/* 右侧 */}
          <View style={[styles.barBtn, GStyle.flex_row]}>
            { 
              !headerRight ? null : headerRight.map((item, index) => {
                return(
                  <TouchableOpacity style={[styles.iconItem]} activeOpacity={.5} key={index} onPress={()=>item.press ? item.press(this.state.searchInput) : null}>
                    {
                      item.type === \'iconfont\' ? item.title : (
                        typeof item.title === \'string\' ? 
                        <Text style={item.style ? item.style : null}>{`${item.title}`}</Text>
                        :
                        <Image source={item.title} style={{width: 24, height: 24, resizeMode: \'contain\'}} />
                      )
                    }
                    {/* 圆点 */}
                    { item.badge ? <View style={[styles.iconBadge, GStyle.badge]}><Text style={GStyle.badge_text}>{item.badge}</Text></View> : null }
                    { item.badgeDot ? <View style={[styles.iconBadgeDot, GStyle.badge_dot]}></View> : null }
                  </TouchableOpacity>
                )
              })
            }
          </View>
        </View>
      </View>
    )
  }

  goBack = () => {
    this.props.navigation.goBack()
  }
}

// 创建底部TabBar
const tabNavigator = createBottomTabNavigator(
  // tabbar路由（消息、通讯录、我）
  {
    Index: {
      screen: Index,
      navigationOptions: ({navigation}) => ({
        tabBarLabel: \'消息\',
        tabBarIcon: ({focused, tintColor}) => (
          <View>
            <Text style={[ GStyle.iconfont, GStyle.fs_20, {color: (focused ? tintColor : \'#999\')} ]}></Text>
            <View style={[GStyle.badge, {position: \'absolute\', top: -2, right: -15,}]}><Text style={GStyle.badge_text}>12</Text></View>
          </View>
        )
      })
    },
    Contact: {
      screen: Contact,
      navigationOptions: {
        tabBarLabel: \'通讯录\',
        tabBarIcon: ({focused, tintColor}) => (
          <View>
            <Text style={[ GStyle.iconfont, GStyle.fs_20, {color: (focused ? tintColor : \'#999\')} ]}></Text>
          </View>
        )
      }
    },
    Ucenter: {
      screen: Ucenter,
      navigationOptions: {
        tabBarLabel: \'我\',
        tabBarIcon: ({focused, tintColor}) => (
          <View>
            <Text style={[ GStyle.iconfont, GStyle.fs_20, {color: (focused ? tintColor : \'#999\')} ]}></Text>
            <View style={[GStyle.badge_dot, {position: \'absolute\', top: -2, right: -6,}]}></View>
          </View>
        )
      }
    }
  },
  // tabbar配置
  {
    ...
  }
)

◆ RN聊天页面功能模块

1、表情处理：原本是想着使用图片表情gif，可是在RN里面textInput文本框不能插入图片，只能通过定义一些特殊字符 :66: (:12 [奋斗] 解析表情，处理起来有些麻烦，而且图片多了影响性能，如是就改用emoj表情符。

faceList: [
  {
    nodes: [
      \'🙂\',\'😁\',\'😋\',\'😎\',\'😍\',\'😘\',\'😗\',
      \'😃\',\'😂\',\'🤣\',\'😅\',\'😉\',\'😊\',\'🤗\',
      \'🤔\',\'😐\',\'😑\',\'😶\',\'🙄\',\'😏\',\'del\',
    ]
  },
  ...
  {
    nodes: [
      \'👓\',\'👄\',\'💋\',\'👕\',\'👙\',\'👜\',\'👠\',
      \'👑\',\'🎓\',\'💄\',\'💍\',\'🌂\',\'👧🏼\',\'👨🏼\',
      \'👵🏻\',\'👴🏻\',\'👨‍🌾\',\'👨🏼‍🍳\',\'👩🏻‍🍳\',\'👨🏽‍✈️\',\'del\',
    ]
  },
  ...
]

2、光标定位：在指定光标处插入内容，textInput提供了光标起始位置

let selection = this.textInput._lastNativeSelection || null;
this.textInput.setNativeProps({
　　selection : { start : xxx, end : xxx}
})

3、textInput判断内容是否为空，过滤空格、回车

isEmpty = (html) => {
　　return html.replace(/\\r\\n|\\n|\\r/, \"\").replace(/(?:^[ \\t\\n\\r]+)|(?:[ \\t\\n\\r]+$)/g, \"\") == \"\"
}

/**
 * 聊天模块JS----------------------------------------------------
 */
// ...滚动至聊天底部
scrollToBottom = (t) => {
  let that = this
  this._timer = setTimeout(() => {
    that.refs.scrollView.scrollToEnd({animated: false})
  }, t ? 16 : 0);
}

// ...隐藏键盘
hideKeyboard = () => {
  Keyboard && Keyboard.dismiss()
}

// 点击表情
handlePressEmotion = (img) => {
  if(img === \'del\') return

  let selection = this.editorInput._lastNativeSelection || null;
  if (!selection){
    this.setState({
      editorText : this.state.editorText + `${img}`,
      lastRange: this.state.editorText.length
    })
  }
  else {
    let startStr = this.state.editorText.substr(0 , this.state.lastRange ? this.state.lastRange : selection.start)
    let endStr = this.state.editorText.substr(this.state.lastRange ? this.state.lastRange : selection.end)
    this.setState({
      editorText : startStr + `${img}` + endStr,
      lastRange: (startStr + `${img}`).length
    })
  } 
}

// 发送消息
isEmpty = (html) => {
  return html.replace(/\\r\\n|\\n|\\r/, \"\").replace(/(?:^[ \\t\\n\\r]+)|(?:[ \\t\\n\\r]+$)/g, \"\") == \"\"
}
handleSubmit = () => {
  // 判断是否为空值
  if(this.isEmpty(this.state.editorText)) return

  let _msg = this.state.__messageJson
  let _len = _msg.length
  // 消息队列
  let _data = {
    id: `msg${++_len}`,
    msgtype: 3,
    isme: true,
    avator: require(\'../../../assets/img/uimg/u__chat_img11.jpg\'),
    author: \'王梅（Fine）\',
    msg: this.state.editorText,
    imgsrc: \'\',
    videosrc: \'\'
  }
  _msg = _msg.concat(_data)
  this.setState({ __messageJson: _msg, editorText: \'\' })

  this.scrollToBottom(true)
}


// >>> 【选择区功能模块】------------------------------------------
// 选择图片
handleLaunchImage = () => {
  let that = this

  ImagePicker.launchImageLibrary({
    // title: \'请选择图片来源\',
    // cancelButtonTitle: \'取消\',
    // takePhotoButtonTitle: \'拍照\',
    // chooseFromLibraryButtonTitle: \'相册图片\',
    // customButtons: [
    //   {name: \'baidu\', title: \'baidu.com图片\'},
    // ],
    // cameraType: \'back\',
    // mediaType: \'photo\',
    // videoQuality: \'high\',
    // maxWidth: 300,
    // maxHeight: 300,
    // quality: .8,
    // noData: true,
    storageOptions: {
      skipBackup: true,
    },
  }, (response) => {
    // console.log(response)

    if(response.didCancel){
      console.log(\'user cancelled\')
    }else if(response.error){
      console.log(\'ImagePicker Error\')
    }else{
      let source = { uri: response.uri }
      // let source = {uri: \'data:image/jpeg;base64,\' + response.data}
      that.setState({ imgsrc: source })

      that.scrollToBottom(true)
    }
  })
}

以上所述是小编给大家介绍的react-native聊天室|RN版聊天App仿微信实例|RN仿微信界面，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对网站的支持！
如果你觉得本文对你有帮助，欢迎转载，烦请注明出处，谢谢！

版权声明 1 本网站名称：偶像资源网
2 本站永久网址：https://www.ox520.com
3 本网站的文章部分内容可能来源于网络，仅供大家学习与参考，如有侵权，请联系站长 QQ593098775进行删除处理。
4 本站一切资源不代表本站立场，并不代表本站赞同其观点和对其真实性负责。
5 本站一律禁止以任何方式发布或转载任何违法的相关信息，访客发现请向站长举报
6 本站资源大多存储在云盘，如发现链接失效，请联系我们我们会第一时间更新。

THE END

react-native聊天室|RN版聊天App仿微信实例|RN仿微信界面

请登录后发表评论