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小程序完成类似于苹果AssistiveTouch技巧（附代码）

时间：2022-9-4作者：未知来源：争怎路由网人气：

微信小程序，简称小程序，英文名Mini Program，是一种不需要下载安装即可使用的应用，它实现了应用“触手可及”的梦想，用户扫一扫或搜一下即可打开应用。小程序是一种不用下载就能使用的应用，也是一项门槛非常高的创新，经过将近两年的发展，已经构造了新的小程序开发环境和开发者生态。
本篇文章给大家带来的内容是关于小程序实现类似于苹果AssistiveTouch功能（附代码），有一定的参考价值，有需要的朋友可以参考一下，希望对你有所帮助。

一、首先我先介绍一下，我们要做一个什么样的项目功能

项目功能就是一个音频点击播放，当点击为播放的状态时，一个音频的动图出现，而且是可以跟随着手指的滑动而滑动，而且，在滑动动图的时候，当前下的页面是不可以跟随着我的滑动而上下滚动，当停止滑动的时候，音频动图停靠在手机的左侧或者右侧，而当前下的页面是可以上下滚动的，功能介绍到此为止，下面我们说一下思路。

二、我们做这个功能，第二步就是要想思路

思路就是，利用微信中的滑动事件，外加控制css样式，来完成这个功能。

三、这是项目的ui图，废话不多说，直接撸代码。

项目样图

1385775853-5bc1a273bea26_articlex.png
3634266197-5bc1a2426c764_articlex.png

3238059425-5bc1a2132158f_articlex.png

四、index.wxml、index.wxss、index.js页面代码

*index.wxml页面*

<!-- 搜索 -->

    <view class='home_srh'>
        <view class='srh_box' bindtap='srhBox'>
            <image class='srh_box_img' src='../../img/home_search.png'></image>
            <view class='srh_box_text'>开心奶奶</view>
        </view>
    </view>

    <!-- 音频分类 -->

    <view class='home_ban'>

        <!-- 轮播图 -->
        <view class="page-section">
        <swiper circular="true" previous-margin="44rpx" next-margin="44rpx">
            <!-- <block wx:for="{{}}" wx:key=""> -->
            <swiper-item>
                <view class="swiper-item">
                    <audio src="http://img.tukuppt.com/preview_music/00/00/60/yulan-5b87c00c59d402663.mp3" id="myAudio" loop></audio>
                    <view class='audio_box'>
                        <button bindtap='audioPlay' wx:if="{{adply1}}" class='audio_play'>
                            <image  src='../../img/home_adplay.png' ></image>
                        </button>
                        <button bindtap='audioPause' wx:if="{{adply2}}" class='audio_play'>
                            <image  src='../../img/home_adstop.png' ></image>
                        </button>
                    </view>
                    <view class='audio_next'>
                        <image src='../../img/audio_next.png'></image>
                    </view>
                    <view class='audio_collect'>
                        <button bindtap='audioColy' wx:if="{{adcol1}}" class='audio_coly'>
                            <image src='../../img/audio_nocollect.png'></image>
                        </button>
                        <button bindtap='audioColn' wx:if="{{adcol2}}" class='audio_coly'>
                            <image src='../../img/audio_collect.png'></image>
                        </button>
                    </view>
                    <view class='audio_text'>开心奶奶——小小探险家</view>
                </view>
            </swiper-item>
            <swiper-item>
                <view class="swiper-item">
                    <audio src="http://img.tukuppt.com/preview_music/00/00/60/yulan-5b87c00c59d402663.mp3" id="myAudio" loop></audio>
                    <view class='audio_box'>
                        <button bindtap='audioPlay' wx:if="{{adply1}}" class='audio_play'>
                            <image  src='../../img/home_adplay.png' ></image>
                        </button>
                        <button bindtap='audioPause' wx:if="{{adply2}}" class='audio_play'>
                            <image  src='../../img/home_adstop.png' ></image>
                        </button>
                    </view>
                    <view class='audio_next'>
                        <image src='../../img/audio_next.png'></image>
                    </view>
                    <view class='audio_collect'>
                        <button bindtap='audioColy' wx:if="{{adcol1}}" class='audio_coly'>
                            <image src='../../img/audio_nocollect.png'></image>
                        </button>
                        <button bindtap='audioColn' wx:if="{{adcol2}}" class='audio_coly'>
                            <image src='../../img/audio_collect.png'></image>
                        </button>
                    </view>
                    <view class='audio_text'>开心奶奶——小小探险家</view>
                </view>
            </swiper-item>
            <!-- </block> -->
            </swiper>

        </view>
----------

> 重点！！！！


        <!-- 音频动图 -->
        <view class='{{ home_back }}' catchtouchmove='true' >
            <view class='audio_fre'  wx:if="{{ adFre }}" bindtouchmove="handletouchmove" bindtouchend="handletouchend" style = "top:{{top}}px; left: {{left}}px; right: {{right}}px">
                <image class='audio_fre1' src='../../img/audio_back.png'></image>
                <image class='audio_fre2' src='../../img/audio_fre.gif'></image>
            </view>
        </view>


----------


        <!-- 分类 -->
        <view class='menu_ul'>
            <view class='menu_li' id="0" bindtap='menuLi'>
                <image src='../../img/recom.png'></image>
                <view class='menu_text'>推荐故事</view>
            </view>
            <view class='menu_li' id="1" bindtap='menuLi'>
                <image src='../../img/boy_icon.png'></image>
                <view class='menu_text'>男孩</view>
            </view>
            <view class='menu_li' id="2" bindtap='menuLi'>
                <image src='../../img/girl_icon.png'></image>
                <view class='menu_text'>女孩</view>
            </view>
        </view>

    </view>

    <!-- 儿童故事 -->
    <view class='child_story'>
        <view class='story_ul' wx:if="{{curr_index == 0}}">
            <view class='story_li' bindtap='storySec'>
                <view class='story_li_img'>
                    <image class='story_li_img1' src='../../img/weekend-first.png'></image>
                    <image class='story_li_img2' src='../../img/pay_icon.png'></image>
                </view>
                <view class='st_li_tit b'>童话故事里的小智慧</view>
                <view class='st_li_sec'>小智慧，大智慧</view>
            </view>
        </view>
        <view class='story_ul' wx:if="{{curr_index == 1}}">
            <view class='story_li' bindtap='storySec'>
                <view class='story_li_img'>
                    <image class='story_li_img1' src='../../img/weekend-first.png'></image>
                    <!-- <image class='story_li_img2' src='../../img/pay_icon.png'></image> -->
                </view>
                <view class='st_li_tit b'>童话故事里的小智慧</view>
                <view class='st_li_sec'>小智慧，大智慧</view>
            </view>
        </view>
        <view class='story_ul' wx:if="{{curr_index == 2}}">
            <view class='story_li' bindtap='storySec'>
                <view class='story_li_img'>
                    <image class='story_li_img1' src='../../img/weekend-first.png'></image>
                    <image class='story_li_img2' src='../../img/pay_icon.png'></image>
                </view>
                <view class='st_li_tit b'>童话故事里的小智慧</view>
                <view class='st_li_sec'>小智慧，大智慧</view>
            </view>
        </view>
    </view>

*index.wxss样式*

/**index.wxss**/

.home_back1{
    width: 100%;
}

.home_back2{
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10;
}

/* 搜索 */
.home_srh {
    width: 100%;
    height: 74rpx;
    padding-top: 20rpx;
    background: #fff; 
    border-bottom: 1rpx solid #e8e8e8;
}

.home_srh .srh_box {
    width: 690rpx;
    height: 54rpx;
    margin: 0 auto;
    box-shadow: 0 0 10rpx 2rpx #f1f1f1;
    border-radius: 50rpx;
    display: flex;
    align-items: center;
}

.home_srh .srh_box .srh_box_img {
    width: 24rpx;
    height: 26rpx;
    display: inline-block;
    margin-left: 32rpx;
    margin-right: 20rpx;
}

.home_srh .srh_box .srh_box_text {
    font-size: 24rpx;
    color: #999;
}

/* 音频分类 */

/* banner图 */
.home_ban{
    width: 100%;
    height: 422rpx;
    background: #fff;
    padding-top: 18rpx;
}

.home_ban .page-section{
    width: 100%;
    height: 258rpx;
    position:relative;
    z-index: 2;
}

.home_ban .page-section .swiper-item{
    width: 630rpx;
    height: 258rpx;
    margin: 0 auto;
    position: relative;
    display: block;
}

.home_ban .page-section .swiper-item audio{
    width: 630rpx;
    height: 258rpx;
    display: block;
    background: #ccc;

}

.home_ban .page-section .swiper-item .audio_box {
    width: 90rpx;
    height: 90rpx;
    position: absolute;
    left: 50%;
    top: 50%;
    margin-left: -45rpx;
    margin-top: -45rpx;
}

.home_ban .page-section .swiper-item .audio_box .audio_play {
    width: 90rpx;
    height: 90rpx;
    display: block;
    background: rgba(0,0,0,0);
}

.home_ban .page-section .swiper-item .audio_box .audio_play image{
    width: 90rpx;
    height: 90rpx;
    display: block;
}

.home_ban .page-section .swiper-item .audio_next {
    width: 60rpx;
    height: 60rpx;
    position: absolute;
    top: 50%;
    margin-top: -30rpx;
    right: 169rpx;
}

.home_ban .page-section .swiper-item .audio_next image {
    width: 60rpx;
    height: 60rpx;
    display: block;
}

.home_ban .page-section .swiper-item .audio_collect {
    width: 60rpx;
    height: 60rpx;
    position: absolute;
    top: 50%;
    margin-top: -30rpx;
    right: 169rpx;
}

.home_ban .page-section .swiper-item .audio_collect image {
    width: 60rpx;
    height: 60rpx;
    display: block;
}

.home_ban .page-section .swiper-item .audio_collect {
    width: 60rpx;
    height: 60rpx;
    position: absolute;
    top: 50%;
    margin-top: -30rpx;
    left: 169rpx;
}

.home_ban .page-section .swiper-item .audio_collect .audio_coly {
    width: 60rpx;
    height: 60rpx;
    display: block;
    background: rgba(0,0,0,0);
}

.home_ban .page-section .swiper-item .audio_collect .audio_coly image {
    width: 60rpx;
    height: 60rpx;
    display: block;
}

.home_ban .page-section .swiper-item .audio_text{
    width: 100%;
    font-size: 28rpx;
    color: #fff;
    text-align: center;
    position: absolute;
    bottom: 26rpx;
}


/* 音频小白点 */

.audio_fre {
    width: 108rpx;
    height: 108rpx;
    position: fixed;
    z-index: 99;
}

.audio_fre .audio_fre1 {
    width: 104rpx;
    height: 104rpx;
    display: block;
    border-radius: 100%;
    border: 2rpx solid #fff;
}

.audio_fre .audio_fre2 {
    width: 60rpx;
    height: 60rpx;
    position: absolute;
    top: 50%;
    margin-top: -30rpx;
    left: 50%;
    margin-left: -30rpx;
}

/* 菜单分类 */
.menu_ul {
    width: 100%;
    height: 164rpx;
}

.menu_ul .menu_li {
    width: 33.3%;
    height: 164rpx;
    float: left;
    text-align: center;
}

.menu_ul .menu_li:nth-child(1) image{
    width: 78rpx;
    height: 80rpx;
    display: block;
    margin: 0 auto;
    margin-top: 23rpx;
}


.menu_ul .menu_li:nth-child(2) image{
    width: 74rpx;
    height: 97rpx;
    display: block;
    margin: 0 auto;
    margin-top: 8rpx;
}

.menu_ul .menu_li:nth-child(3) image{
    width: 73rpx;
    height: 96rpx;
    display: block;
    margin: 0 auto;
    margin-top: 8rpx;
}

.menu_ul .menu_li .menu_text{
    width: 100%;
    text-align: center;
    font-size: 24rpx;
    color: #343434;
    margin-top: 10rpx;
}

/* 儿童故事 */
.child_story {
    width: 100%;
    margin-top: 8rpx;
    background: #fff;
} 

.child_story .story_ul {
    padding: 0 32rpx;
    padding-top: 30rpx;
    overflow: hidden;
}

.child_story .story_ul .story_li {
    width: 330rpx;
    float: left;
    margin-right: 26rpx;
    margin-bottom: 30rpx;
}

.child_story .story_ul .story_li:nth-child(2n) {
    margin-right: 0;
}

.child_story .story_ul .story_li .story_li_img {
    width: 330rpx;
    height: 210rpx;
    border-radius: 14rpx;
    position: relative;
    overflow: hidden;
}

.child_story .story_ul .story_li .story_li_img .story_li_img1{
    width: 330rpx;
    height: 210rpx;
    display: block;
}

.child_story .story_ul .story_li .story_li_img .story_li_img2{
    width: 95rpx;
    height: 32rpx;
    display: block;
    position: absolute;
    top: 0;
    left: 0;
}

.child_story .story_ul .story_li .st_li_tit {
    width: 90%;
    font-size: 26rpx;
    color: #212121;
    margin-top: 18rpx;
    padding: 0 5%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap; 
    letter-spacing: 0.4rpx;
}

.child_story .story_ul .story_li .st_li_sec {
    width: 90%;
    font-size: 18rpx;
    color: #999;
    margin-top: 6rpx;
    padding: 0 5%;
    letter-spacing: 0.2rpx;
}
*index.js页面*
//index.js
var app = getApp();
Page({

    /**
     * 页面的初始数据
     */
    data: { 
        adply1: true,
        adply2: false,
        adcol1: true,
        adcol2: false,
        adFre: false,
        funBun: false,
        curr_index: 0,
        screenHeight: 0,
        screenWidth: 0,
        top: 65,
        left: 300,
        right: 0,
        home_back: 'home_back1'
    },

    /**
     * 生命周期函数--监听页面加载
     */
    onLoad: function (options) {
        //获取屏幕宽高
        var that = this;
        wx.getSystemInfo({
            success: function (res) {
                console.log(res.windowWidth)//手机可用屏幕宽度
                console.log(res.windowHeight)//手机可用屏幕高度
                that.setData({
                    screenHeight: res.windowHeight,
                    screenWidth: res.windowWidth,
                });
            }
        });
    },

    /**
     * 生命周期函数--监听页面初次渲染完成
     */
    onReady: function (e) {
        let that = this;
        that.audioCtx = wx.createAudioContext('myAudio')
    },

    /**
     * 生命周期函数--监听页面显示
     */
    onShow: function () {

    },

    /**
     * 生命周期函数--监听页面隐藏
     */
    onHide: function () {

    },

    /**
     * 生命周期函数--监听页面卸载
     */
    onUnload: function () {

    },

    /**
     * 页面相关事件处理函数--监听用户下拉动作
     */
    onPullDownRefresh: function () {

    },

    /**
     * 页面上拉触底事件的处理函数
     */
    onReachBottom: function () {

    },

    /**
     * 用户点击右上角分享
     */
    onShareAppMessage: function () {

    },

    /**
     * 跳转搜索页面
     */
    srhBox: function () {
        let that = this;
        wx.navigateTo({
            url: '../search/index',
        })
    },


    /**
     * 点击播放
     */
    audioPlay: function () {
        var that = this;
        that.audioCtx.play();
        that.setData({
            adply1: false,
            adply2: true,
            adFre: true,
            // isScroll: that.data.isScroll
        })
    },

    /**
     * 点击暂停
     */
    audioPause: function () {
        var that = this;
        that.audioCtx.pause();
        that.setData({
            adply1: true,
            adply2: false,
            adFre: false,
            // isScroll: that.data.isScroll
        })
    },  

    /**
    * 点击收藏
    */
    audioColy: function () {
        var that = this;
        that.setData({
            adcol1: false,
            adcol2: true,
        })
    },

    /**
     * 点击未收藏
     */
    audioColn: function () {
        var that = this;
        that.setData({
            adcol1: true,
            adcol2: false,
        })
    },  

    /**
     * 跳转故事详情
     */

    storySec: function () {
        let that = this;
        wx.navigateTo({
            url: '../audio/index',
        })
    },

    /**
     * 点击切换
     */

    menuLi: function (e) {
        let that = this;
        // console.log (e);
        let id = e.currentTarget.id;

        that.setData({
            curr_index: id
        })
    },

    /**
     * 音频小白点滑动
     */

    //滑动移动事件
    handletouchmove: function (e) {
        let that = this;
        let clientX = e.touches[0].clientX;
        let clientY = e.touches[0].clientY;
        //屏幕边界判断
        if (clientX < 20   
关键词：小程序完成类似于苹果AssistiveTouch技巧（附代码）



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