react-native高仿微信app實例|RN聊天室|朋友圈

簡述

react native實現的仿微信原生app聊天實例，基於react-native+react-navigation+react+redux+react-native-image-picker+react-native-swiper等技術架構開發。實現了消息發送、textInput文本框插入表情符、表情大圖gif、圖片選擇預覽、紅包、朋友圈等功能。

技術實現

• MVVM框架：react / react-native / react-native-cli
• 狀態管理：react-redux
• 頁面導航：react-navigation
• rn彈窗組件：rnPop
• 打包工具：webpack 2.0
• 輪播組件：react-native-swiper
• 圖片/相冊：react-native-image-picker

效果預覽

{
  "name": "RN_ChatRoom",
  "aboutMe": "QQ：282310962 、 wx：xy190310",
  
  "scripts": {
    "start": "react-native start",
    "test": "jest",
    "lint": "eslint ."
  },
  "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"
  }
}

headerBar導航條

因爲原生及react-navigation導航器不能知足項目需求，如是就基於react-navigation導航器自定義個頂部導航條headerBar組件

//右側圖標（文字）
<HeaderBar navigation={this.props.navigation} title='新的朋友' headerRight={[
    {
        title: '添加好友',
        style: {color: '#fff', fontSize: 14},
        press: this.handlePress01
    }
]} />

//右側圖標（iconfont）
<HeaderBar navigation={this.props.navigation} title='標題信息' headerRight={[
    {
        title: (<Text style={[GStyle.iconfont, GStyle.c_fff, GStyle.fs_18]}>&#xe653;</Text>),
        type: 'iconfont',
        press: this.handlePress01
    }
]} />

//右側圖標（圖片）
<HeaderBar navigation={this.props.navigation} search headerRight={[
    {
        title: require('../../assets/img/search.png'),
        press: this.handlePress01
    },
    {
        title: require('../../assets/img/add.png'),
        press: this.handlePress02
    },
]} />

RN全屏幕啓動頁

/**
 * @desc 啓動頁面
 */

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(){
        // 判斷是否登陸
        storage.get('hasLogin', (err, object) => {
            setTimeout(() => {
                Animated.timing(
                    this.state.animFadeOut, {duration: 300, toValue: 0}
                ).start(()=>{
                    // 跳轉頁面
                    util.navigationReset(this.props.navigation, (!err && object && object.hasLogin) ? 'Index' : 'Login')
                })
            }, 1500);
        })
    }
}

表情則是使用的emoj表情符，因爲使用image表情的話，處理起來麻煩，也影響系統性能。

faceList: [
    {
        nodes: [
            '🙂','😁','😋','😎','😍','😘','😗',
            '😃','😂','🤣','😅','😉','😊','🤗',
            '🤔','😐','😑','😶','🙄','😏','del',
        ]
    },
    ...
]

/**
 * @desc 本地存儲函數
 */

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

最後附上以前開發的H5即時IM項目，但願能喜歡😍😍 ^-^
html5即時webIM實例：https://segmentfault.com/a/11...