Taro自定义Modal对话框组件|taro仿微信、android弹窗-云海天教程

基于Taro多端实践TaroPop：自定义模态框|dialog对话框|msg消息框|Toast提示

taro自定义弹出框支持编译到多端H5/小程序/ReactNative，还可以自定义弹窗类型/弹窗样式、多按钮事件/样式、自动关闭、遮罩层、弹窗显示位置及自定义内容模板

用法

▍在相应页面引入组件

import TaroPop from "@components/taroPop"

import Taro from "@tarojs/taro"
import { View, Text } from "@tarojs/components"

// 引入自定义弹窗组件
import TaroPop from "@components/taroPop"

export default class TaroPopDemo extends Taro.Component {
    ...

    render() {
        return (
            <View className="taro-container">
                ...
                
                {/* 引入弹窗模板 */}
                <TaroPop ref="taroPop" />
            </View>
        );
    }
}

通过ref方式调用组件内show、close方法

this.refs.taroPop.show({...options})

this.refs.taroPop.close()

▍自定义弹窗模板内容（如下图）

只需把页面上的模板写成如下即可，调用方式还和上面一样

<TaroPop ref="taroPopTpl">
    ...
</TaroPop>

支持多种参数配置：

/** 
 * @ 弹窗默认配置 
 */
static defaultProps = {
    isVisible: false,       //弹窗显示
    
    title: "",              //标题
    content: "",            //内容
    contentStyle: null,     //内容样式
    style: null,            //自定义弹窗样式
    skin: "",               //弹窗风格
    icon: "",               //弹窗图标
    xclose: false,          //自定义关闭按钮
    
    shade: true,            //遮罩层
    shadeClose: true,       //点击遮罩关闭
    opacity: "",            //遮罩透明度
    time: 0,                //自动关闭时间
    end: null,              //销毁弹窗回调函数
    
    position: "",           //弹窗位置显示

    btns: null,             //弹窗按钮 [{...args}, {...args}]
}

/** 
 * 显示弹窗事件 
 */
show = (options) => {
    this.setState({
        ...this.props, ...options, isVisible: true
    })
}

/** 
 * 关闭弹窗事件 
 */
close = () => {
    this.setState({...this.props})

    this.timer && clearTimeout(this.timer)
    delete this.timer

    typeof this.state.end === "function" && this.state.end.call(this)
}

/** 
 * 点击遮罩关闭 
 */
shadeClick = () => {
    if(!this.state.shadeClose) return
    this.close()
}

◆ msg消息框提示

this.refs.taroPop.show({
    content: "Taro自定义模态Modal弹窗",
    shadeClose: false,
    style: {backgroundColor: "rgba(0,0,0,.7)", borderRadius: 6},
    contentStyle: {color: "#fff", fontSize: 12, padding: 12},
    time: 3,
    opacity: .2,
})

◆ Toast轻提示效果（success | error | info | loading四种图标）

let taroPop = this.refs.taroPop
taroPop.show({
    skin: "toast",
    content: "loading",
    icon: "loading", //success | info | error | loading
    shade: false,
    time: 3
})

◆ android弹窗效果

let taroPop = this.refs.taroPop
taroPop.show({
    skin: "android",
    title: "邮件提醒",
    content: "系统检测到你未开启新邮件提醒功能，为了保证新邮件能及时收到提醒，请前往系统 [设置] - [应用] 中开启",
    shadeClose: false,
    
    btns: [
        {
            text: "取消",
            onClick() {
                taroPop.close()
            }
        },
        {
            text: "前往设置",
            style: {color: "#4eca33"},
            onClick() {
                console.log("您点击了前往设置！")
            }
        }
    ]
})

emmmm，看了如上展示及调用方式，是否觉得还不错哟！哈哈哈，这可是花了无数个日夜采坑的结果。

尤其是编译到reactNative端，各种千奇百怪的问题，有些抓狂~~

另外对于不同端的一些兼容性处理，需要判断各端环境并渲染相应模板，对于RN，则使用Modal

let taroEnv = process.env.TARO_ENV

// 渲染窗体
if (taroEnv === "rn") {
    return (
        <Modal transparent={true} visible={isVisible} onRequestClose={this.close}>
            {renderTpl}
        </Modal>
    )
}else if (taroEnv === "h5" || taroEnv === "weapp"){
    return isVisible && renderTpl
}

另外在样式处理上也需注意RN端兼容性。

/**
 * @Title     Taro自定义弹窗组件 - taroPop.js
 * @Time     andy by 2019-11-28
 * @About     Q：282310962  wx：xy190310
 */

import Taro from "@tarojs/taro"
import { View, Text, Image } from "@tarojs/components"
import { Modal, ActivityIndicator, TouchableHighlight } from "react-native"
import classNames from "classnames"
import "./index.scss"

export default class TaroPop extends Taro.Component {
    /** 
     * @ 弹窗默认配置 
     */
    static defaultProps = {
        isVisible: false,       //弹窗显示

        title: "",              //标题
        content: "",            //内容
        contentStyle: null,     //内容样式
        style: null,            //自定义弹窗样式
        skin: "",               //弹窗风格
        icon: "",               //弹窗图标
        xclose: false,          //自定义关闭按钮

        shade: true,            //遮罩层
        shadeClose: true,       //点击遮罩关闭
        opacity: "",            //遮罩透明度
        time: 0,                //自动关闭时间
        end: null,              //销毁弹窗回调函数

        anim: "scaleIn",        //弹窗动画
        position: "",           //弹窗位置显示

        btns: null,             //弹窗按钮 [{...args}, {...args}]
    }

    constructor(props) {
        super(props)
        this.state = {
            ...this.props,
        }
        this.timer = null
    }


    /** 
     * @ 显示弹窗事件 
     */
    show = (options) => {
        this.setState({
            ...this.props, ...options, isVisible: true
        })
    }

    /** 
     * @ 关闭弹窗事件 
     */
    close = () => {
        this.setState({...this.props})

        this.timer && clearTimeout(this.timer)
        delete this.timer

        typeof this.state.end === "function" && this.state.end.call(this)
    }

    /** 
     * @ 点击遮罩关闭 
     */
    shadeClick = () => {
        if(!this.state.shadeClose) return
        this.close()
    }

    render() {
        let { isVisible, title, content, contentStyle, style, skin, icon, xclose, shade, shadeClose, opacity, time, end, anim, position, btns } = this.state
        
        let toastIcon = {
            loading: require("./skin/loading.png"),
            success: require("./skin/success.png"),
            error: require("./skin/error.png"),
            info: require("./skin/info.png"),
        }

        let taroEnv = process.env.TARO_ENV
        
        ...

        // 渲染H5、RN模板
        const renderTpl = (
            <View className="taroPop">
                {/* 遮罩 */}
                {shade ? <View className="atpop__ui_mask" style={{opacity: opacity == "" ? .6 : opacity}} onClick={this.shadeClick} /> : null}
                {/* 窗体 */}
                <View className="atpop__ui_main">
                    <View className={classNames("atpop__ui_child", skin && "atpop__" + skin, position && "atpop__ui_child-" + position)} style={style}>
                        {/* 标题 */}
                        {title ? <Text className={classNames("atpop__ui_tit", skin && "atpop__ui_tit-" + skin)}>{title}</Text> : null}
                        {/* 内容 */}
                        {content ? <View className="atpop__ui_cnt">
                            {/* toast内容 */}
                            {icon && skin === "toast" ?
                                <View className="atpop__ui_toast">
                                    {icon === "loading" && taroEnv === "rn" ?
                                    <ActivityIndicator color="rgba(255,255,255,.5)" size={24} /> : <Image className={classNames("atpop__ui_toast-img", icon=="loading" && "atpop__ui_toast-img-loading")} src={toastIcon[icon]} mode="aspectFit" />
                                    }
                                </View>
                                :
                                null
                            }
                            {/* 文本内容 */}
                            <Text className={classNames("atpop__ui_cntxt", skin && "atpop__ui_cntxt-" + skin)} style={contentStyle}>{content}</Text>
                        </View>
                        :
                        this.props.children
                        }
                        {/* 按钮 */}
                        {btns ? <View className={classNames("atpop__ui_btns", skin && "atpop__ui_btns-" + skin)}>
                            {btns.map((item, i) => {
                                return taroEnv === "rn" ? 
                                <TouchableHighlight className={classNames("atpop__ui_btn", skin && "atpop__ui_btn-" + skin)} activeOpacity={1} underlayColor="rgba(200,200,200,.3)" key={i} onPress={item.onClick}>
                                    <Text className={classNames("atpop__ui_btntxt", skin && "atpop__ui_btntxt-" + skin)} style={item.style}>{item.text}</Text>
                                </TouchableHighlight>
                                :
                                <View className={classNames("atpop__ui_btn", skin && "atpop__ui_btn-" + skin)} key={i} onClick={item.onClick}>
                                    <Text className={classNames("atpop__ui_btntxt", skin && "atpop__ui_btntxt-" + skin)} style={item.style}>{item.text}</Text>
                                </View>
                            })}
                        </View>
                        :
                        null
                        }
                    </View>
                    {/* xclose */}
                    {xclose ? <View className="atpop__ui_xclose" onClick={this.close}><Image className="atpop__ui_xclose-img" src={require("./skin/error.png")} mode="aspectFit" /></View> : null}
                </View>
            </View>
        )

        // 渲染窗体
        if (taroEnv === "rn") {
            return (
                <Modal transparent={true} visible={isVisible} onRequestClose={this.close}>
                    {renderTpl}
                </Modal>
            )
        }else if (taroEnv === "h5" || taroEnv === "weapp"){
            return isVisible && renderTpl
        }
    }
}

好了，以上就是taro自定义弹窗组件实现方式，希望能有帮助✊✊~~

Taro自定义Modal对话框组件|taro仿微信、android弹窗

用法

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