微信小程序之底部弹框预约插件

野性酷女 2022-05-11 07:40 216阅读 0赞

> 代码地址如下：  
> [http://www.demodashi.com/demo/13982.html][http_www.demodashi.com_demo_13982.html]

#### 一、前期准备工作： ####

软件环境：微信开发者工具  
官方下载地址：[https://mp.weixin.qq.com/debug/wxadoc/dev/devtools/download.html][https_mp.weixin.qq.com_debug_wxadoc_dev_devtools_download.html]

##### 1、基本需求。 #####

*  实现用户预约
 *  时间可选
 *  预约类型更具需求可自定义

##### 2、案例目录结构 #####

![hHgYo71E5y7srJklsvq.png][]

#### 二、程序实现步骤： ####

##### 1.预约index.wxml代码 #####

<view class="modals modals-bottom-dialog" hidden="{ {hideModal}}"> <view class="modals-cancel" bindtap="hideModal"></view> <view class="bottom-dialog-body bottom-pos" animation="{ {animationData}}"> <view class="swiper-tab"> <scroll-view class="scroll-view_H" scroll-x> <view class='list' style='width:{ { width }}rpx'> <view bindtap="select" wx:for="{ { calendar }}" wx:for-item="item" wx:for-index="index" data-index="{ { index }}" class='listItem { {index == currentTab ? "current":""}}' wx:key='' data-date="{ { item.date}}"> <text class='name'>{ { item.week }}</text> <text class='date'>{ { item.date }}</text> </view> </view> </scroll-view> </view> <swiper current="{ {currentTab}}" class="swiper-box" duration="300" style="height:500rpx"> <swiper-item wx:for="{ { calendar }}" wx:key='' catchtouchmove="stopTouchMove" >  <view class='time'> <view wx:for="{ { timeArr }}" wx:for-item="timeItem" wx:for-index="timeIndex" data-tindex="{ { timeIndex }}" data-time="{ { timeItem.time}}" bindtap='selectTime' class='listItem { { currentTime == timeIndex ? "current":"" }}' wx:key=''> <text>{ { timeItem.time }}</text> <text>{ { timeItem.status }}</text> </view> </view> </swiper-item> </swiper> </view> </view> <button bindtap="showModal">点我预约</button>

##### 2.预约index.wxss代码 #####

/**index.wxss**/ /*模态框*/ .modals{ position:fixed; z-index: 999; top:0; left: 0; right:0; bottom: 0; } .modals-cancel{ position:absolute; z-index:1000; top:0; left: 0; right:0; bottom: 0; background-color: rgba(0,0,0,.5); } .bottom-dialog-body{ position:absolute; z-index:10001; bottom:0; left:0; right:0; height:600rpx; background-color: #fff; } /*动画前初始位置*/ .bottom-pos{ -webkit-transform:translateY(100%); transform:translateY(100%); } /* pages/orderTime/index.wxss */ scroll-view{ height: 128rpx; width: 100%; } scroll-view .list{ display: flex; flex-wrap: nowrap; justify-content: flex-start; width: 1302rpx; } scroll-view .listItem{ text-align: center; width: 186rpx; height: 128rpx; background-color: #f1f2f6; padding-top: 30rpx; box-sizing: border-box; /* float: left; */ display: inline-block; } scroll-view .listItem text{ display: block; } scroll-view .listItem .name{ font-size: 30rpx; } scroll-view .listItem .date{ font-size: 30rpx; } scroll-view .current{ background-color: #76aef8; } scroll-view .current text{ color: #fff; } .time{ width: 95%; display: flex; flex-wrap: wrap; justify-content: flex-start; margin: 0 auto; margin-top: 30rpx; } .time .listItem{ width: 30%; height: 120rpx; text-align: center; box-sizing: border-box; background-color: #fff; padding-top: 20rpx; border: 1px solid #b9c1c8; border-radius: 50rpx; margin-left: 5%; margin-bottom: 20rpx; } .time .listItem:first-child{ margin-left: 0%; } .time .listItem:nth-child(4){ margin-left: 0%; } .time .listItem:nth-child(7){ margin-left: 0%; } .time .listItem text{ display: block; font-size: 30rpx; } .time .current{ border: 1px solid #76aef8; } .time .current text{ color: #76aef8; }

##### 3.预约index.js逻辑代码 #####

a.遮罩层的显示、隐藏

// 显示遮罩层 
      showModal: function () { 
        var that=this; 
        that.setData({ 
          hideModal:false 
        }) 
        var animation = wx.createAnimation({ 
          duration: 600,//动画的持续时间 默认400ms 数值越大，动画越慢 数值越小，动画越快 
          timingFunction: 'ease',//动画的效果 默认值是linear 
        }) 
        this.animation = animation 
        setTimeout(function(){ 
          that.fadeIn();//调用显示动画
        },200)
      },
    
      // 隐藏遮罩层 
      hideModal: function () {
        var that=this;
        var animation = wx.createAnimation({
          duration: 800,//动画的持续时间 默认400ms 数值越大，动画越慢 数值越小，动画越快 
          timingFunction: 'ease',//动画的效果 默认值是linear
        })
        this.animation = animation
        that.fadeDown();//调用隐藏动画
        setTimeout(function(){
          that.setData({ hideModal:true })
        },720)//先执行下滑动画，再隐藏模块
      },

b.底部弹出动画集

//动画集
      fadeIn:function(){
        this.animation.translateY(0).step() 
        this.setData({
          animationData: this.animation.export()//动画实例的export方法导出动画数据传递给组件的animation属性
        })
      },
      fadeDown:function(){    this.animation.translateY(300).step()
        this.setData({
          animationData: this.animation.export(),
        })
      },

c.利用构造函数创建对象,限制要渲染的日历数据天数为7天以内（用户体验）

// 计算每月第一天是星期几
        function getFirstDayOfWeek(year, month) {
          return new Date(Date.UTC(year, month - 1, 1)).getDay();
        }
        const date = new Date();
        const cur_year = date.getFullYear();
        const cur_month = date.getMonth() + 1;
        const cur_date=date.getDate();
        const weeks_ch = ['日', '一', '二', '三', '四', '五', '六'];
        //利用构造函数创建对象
        function calendar(date,week){
          this.date=cur_year+'-'+cur_month+'-'+date;
          if(date==cur_date){
            this.week = "今天";
          }else if(date==cur_date+1){
            this.week = "明天";
          }else{
            this.week = '星期' + week;
          }
        }
        //当前月份的天数
        var monthLength= getThisMonthDays(cur_year, cur_month)
        //当前月份的第一天是星期几
        var week = getFirstDayOfWeek(cur_year, cur_month)
        var x = week;
        for(var i=1;i<=monthLength;i++){
          //当循环完一周后，初始化再次循环
          if(x>6){
            x=0;
          }
          //利用构造函数创建对象
          that.data.calendar[i] = new calendar(i, [weeks_ch[x]][0])
          x++;
        }
        //限制要渲染的日历数据天数为7天以内（用户体验）
        var flag = that.data.calendar.splice(cur_date, that.data.calendar.length - cur_date <= 7 ? that.data.calendar.length:7)
        that.setData({
          calendar: flag
        })

d.点击tab切换,禁止手动滑动底部日期

/** 
       * 点击tab切换 
       */  
      swichNav: function( e ) {  
        var that = this;  
        if( this.data.currentTab === e.target.dataset.current ) {  
          return false;  
        } else {  
          that.setData( {  
            currentTab: e.target.dataset.current  
          })  
        }  
      },
      // 禁止手动滑动
      stopTouchMove: function() {
        return false;
      }

#### 三、案例运行效果图： ####

![Ts5wVFe3lf1VkeW6a5f.gif][]微信小程序之底部弹框预约插件

> 代码地址如下：  
> [http://www.demodashi.com/demo/13982.html][http_www.demodashi.com_demo_13982.html]

> 注：本文著作权归作者，由demo大师发表，拒绝转载，转载需要作者授权

[http_www.demodashi.com_demo_13982.html]: http://www.demodashi.com/demo/13982.html
[https_mp.weixin.qq.com_debug_wxadoc_dev_devtools_download.html]: https://mp.weixin.qq.com/debug/wxadoc/dev/devtools/download.html
[hHgYo71E5y7srJklsvq.png]: /images/20220511/46fcf40edeef4b2985119ad7ada35da9.png
[Ts5wVFe3lf1VkeW6a5f.gif]: /images/20220511/baed285986434e749bcd2003f5dd3172.png