ReactNative 聊天 App 實戰|RN 仿微信介面群聊|朋友圈

xiaoyan2015發表於2019-09-07

ReactNative聊天APP實戰|RN仿微信介面群聊|朋友圈

前言

這次要給大家分享的是基於ReactNative開發的聊天APP實戰專案RN_ChatRomm,運用react-native+react-navigation+react-redux+react-native-image-picker+rnPop 等技術進行框架搭建開發,開發期間採坑了不少,不過 ReactNative 社群比較完善,很多問題都在網上找到了解決方案。

技術實現

  • RN腳手架:react-native + react-native-cli
  • 狀態管理:react-redux + redux
  • 頁面導航器:react-navigation
  • RN模態框元件:rnPop.js
  • 打包工具:webpack 2.0
  • 滑動元件:react-native-swiper
  • 圖片選取:react-native-image-picker
{
  "name": "RN_ChatRoom",
  "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"
  }
}

ReactNative聊天APP實戰|RN仿微信介面群聊|朋友圈

ReactNative聊天APP實戰|RN仿微信介面群聊|朋友圈

ReactNative聊天APP實戰|RN仿微信介面群聊|朋友圈

ReactNative聊天APP實戰|RN仿微信介面群聊|朋友圈

ReactNative聊天APP實戰|RN仿微信介面群聊|朋友圈

ReactNative聊天APP實戰|RN仿微信介面群聊|朋友圈

ReactNative聊天APP實戰|RN仿微信介面群聊|朋友圈

ReactNative聊天APP實戰|RN仿微信介面群聊|朋友圈

ReactNative聊天APP實戰|RN仿微信介面群聊|朋友圈

ReactNative聊天APP實戰|RN仿微信介面群聊|朋友圈

ReactNative聊天APP實戰|RN仿微信介面群聊|朋友圈

ReactNative聊天APP實戰|RN仿微信介面群聊|朋友圈

ReactNative聊天APP實戰|RN仿微信介面群聊|朋友圈

ReactNative聊天APP實戰|RN仿微信介面群聊|朋友圈

ReactNative聊天APP實戰|RN仿微信介面群聊|朋友圈

RN建立公共樣式style

新建style.js公共樣式庫,通過RN 中提供的global全域性變數,在app.js中一次引入,然後所有頁面均可以呼叫。

<View style={[GStyle.borT, GStyle.bg_45cff5, GStyle.mt_10]}></View>
global.GStyle = {
    pixel: 1 / PixelRatio.get(),

    // 邊框
    borT: {borderTopWidth: 1 / PixelRatio.get(), borderTopColor: '#dedede',},
    borB: {borderBottomWidth: 1 / PixelRatio.get(), borderBottomColor: '#dedede',},

    /* __ 佈局控制 */
    align_l: {textAlign: 'left'},
    align_c: {textAlign: 'center'},
    align_r: {textAlign: 'right'},

    pos_rel: {position: 'relative'},
    pos_abs: {position: 'absolute'},

    /* __ 顏色(背景、文字) */
    bg_fff: {backgroundColor: '#fff'},
    bg_45cff5: {backgroundColor: '#45cff5'},
    c_fff: {color: '#fff'},
    c_999: {color: '#999'},
    c_45cff5: {color: '#45cff5'},

    /* __ 字號 */
    fs_14: {fontSize: 14},
    fs_16: {fontSize: 16},
    fs_20: {fontSize: 20},
    fs_24: {fontSize: 24},

    /* __ 字型 */
    ff_ic: {fontFamily: 'iconfont'},
    ff_ar: {fontFamily: 'arial'},
    iconfont: {fontFamily: 'iconfont', fontSize: 16,},

    /* __ 間距( 5/10/15/20/25/30/50 ) */
    mt_10: {marginTop: 10}, mt_15: {marginTop: 15}, mt_20: {marginTop: 20},
    mb_10: {marginBottom: 10}, mb_15: {marginBottom: 15}, mb_20: {marginBottom: 20},

    /* __ 行高 */
    lh_20: {lineHeight: 20},
    lh_25: {lineHeight: 25},
    lh_30: {lineHeight: 30},
    lh_35: {lineHeight: 35},
    lh_40: {lineHeight: 40},

    flex1: {flex: 1},
    flex2: {flex: 2},

    flex_alignC: {alignItems: 'center'},
    flex_alignT: {alignItems: 'flex-start'},
    flex_alignB: {alignItems: 'flex-end'},
}

RN製作全屏APP啟動頁

reactNative如何實現沉浸式效果,只需把 StatusBar 設定為透明,這樣狀態列和背景頁面一體了。
<statusbar backgroundcolor="transparent" barstyle="light-content" translucent="{true}"></statusbar>
ReactNative聊天APP實戰|RN仿微信介面群聊|朋友圈

export default class Splash extends Component{
    constructor(props){
        super(props)
        this.state = {
            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(){
        storage.get('hasLogin', (err, object) => {
            setTimeout(() => {
                Animated.timing(
                    this.state.animFadeOut, {duration: 300, toValue: 0}
                ).start(()=>{
                    this.props.navigation.navigate('Index')
                })
            }, 1500);
        })
    }
}

RN自定義頂部條headerBar

ReactNative聊天APP實戰|RN仿微信介面群聊|朋友圈

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

    render() {
        /**
         * 更新
         * @param { navigation | 頁面導航 }
         * @param { title | 標題 }
         * @param { center | 標題是否居中 }
         * @param { search | 是否顯示搜尋 }
         * @param { headerRight | 右側 Icon 按鈕 }
         */
        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]}>&#xe63f;</Text></TouchableOpacity>
                    {/* 標題 */}
                    { !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='搜尋' 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>
                        )
                    }
                    {/* 右側 */}
                    <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'}} />
                                            )
                                        }
                                        {/* 圓點 */}
                                        { 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()
    }
}

RN自定義Modal彈窗元件(仿微信/ios效果)

專案中用到的彈窗是自己基於Modal開發的自定義彈窗元件|dialog對話方塊|toast提示,支援多種呼叫方式,具體的可以去看看這篇文章介紹   https://www.cnblogs.com/xiaoyan2017/p/1129...
ReactNative聊天APP實戰|RN仿微信介面群聊|朋友圈
ReactNative聊天APP實戰|RN仿微信介面群聊|朋友圈

static defaultProps = {
    isVisible: false,       //彈窗顯示

    title: '',              //標題
    content: '',            //內容
    style: null,            //自定義彈窗樣式 {object}
    contentStyle: null,     //內容樣式
    skin: '',               //自定義彈窗風格
    icon: '',               //自定義彈窗圖示

    shade: true,            //遮罩層
    shadeClose: true,       //點選遮罩層關閉
    opacity: '',            //遮罩層透明度
    time: 0,                //彈窗自動關閉秒數
    xtime: false,           //顯示關閉秒數
    end: null,              //銷燬彈窗時回撥函式

    anim: 'scaleIn',        //彈窗動畫( scaleIn / fadeIn / top / bottom / left / right )
    follow: null,           //跟隨定位(適用於在長按位置定位彈窗)
    position: '',           //彈窗位置

    btns: null,             //彈窗按鈕(不設定則不顯示按鈕)[{...options}, {...options}]
}

RN聊天表情處理

方法一: 通過特殊符處理,[哭泣] (:88 類似這樣的,處理起來比較麻煩,而且圖片多了會影響頁面效能。
方法二: 使用 emoj 表情符,這種方式處理比較簡單,網上很多表情符可用,而且不需要特殊處理,效能也還不錯。如果要求不高,推薦這種方式。
ReactNative 聊天 App 實戰|RN 仿微信介面群聊|朋友圈

好了,今天的分享就到這裡,希望能給到你們些許幫助~~~
ReactNative聊天APP實戰|RN仿微信介面群聊|朋友圈

本文為原創文章,未經作者允許不得轉載,歡迎大家一起交流 QQ(282310962) wx(xy190310)

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