微信小程序开发中实现侧边栏滑动效果方法详细解析

12345678910111213141516171819202122<!--page/one/index.wxml-->  <view class="page">     <view class="page-bottom">         <view class="page-content">             <view  class="wc">                 <text>第一个item1</text>             </view>             <view  class="wc">                 <text>第二个item2</text>             </view>             <view  class="wc">                 <text>第三个item3</text>             </view>             <view  class="wc">                 <text>第四个item4</text>             </view>         </view>     </view>     <view class="page-top {{open ? &#39;c-state1&#39; : &#39;&#39;}}">         <image bindtap="tap_ch" src="../../images/btn.png"></image>     </view> </view>

1234.c-state1{   transform: rotate(0deg) scale(1) translate(75%,0%);     -webkit-transform: rotate(0deg) scale(1) translate(75%,0%);   }

1234.c-state2{   transform: rotate(0deg) scale(.8) translate(75%,0%);     -webkit-transform: rotate(0deg) scale(.8) translate(75%,0%);   }

1<span style="font-family:&quot"><span style="font-size:15px">Page({  <br/>  data:{  <br/>    open : false  <br/>  },  <br/>  tap_ch: function(e){  <br/>    if(this.data.open){  <br/>      this.setData({  <br/>        open : false  <br/>      });  <br/>    }else{  <br/>      this.setData({  <br/>        open : true  <br/>      });  <br/>    }  <br/>  }  <br/>})  </span></span>

123456789101112131415161718192021222324252627282930313233343536373839tap_start:function(e){     // touchstart事件      this.data.mark = this.data.newmark = e.touches[0].pageX;  }, tap_drag: function(e){     // touchmove事件         /*     * 手指从左向右移动      * @newmark是指移动的最新点的x轴坐标 ， @mark是指原点x轴坐标      */     this.data.newmark = e.touches[0].pageX;      if(this.data.mark < this.data.newmark){       this.istoright = true;      }     /*     * 手指从右向左移动      * @newmark是指移动的最新点的x轴坐标 ， @mark是指原点x轴坐标      */     if(this.data.mark > this.data.newmark){       this.istoright = false;         }     this.data.mark = this.data.newmark;  }, tap_end: function(e){     // touchend事件      this.data.mark = 0;      this.data.newmark = 0;      if(this.istoright){       this.setData({         open : true       });      }else{       this.setData({         open : false       });      } }

123this.setData({     translate: &#39;transform: translateX(&#39;+(this.data.newmark - this.data.startmark)+&#39;px)&#39;  })

123456789if(x < 20%){      this.setData({          translate: &#39;transform: translateX(0px)&#39;       }) }else{      this.setData({          translate: &#39;transform: translateX(&#39;+this.data.windowWidth*0.75+&#39;px)&#39;       }) }