微信小程序列表中item左滑删除功能

.box{
 height: 100%;
}
.item{
 position:relative;
 top: 0;
 width: 100%;
 height: 150rpx;
 border-bottom: #d9d9d9 solid 1rpx;
 padding: 0;
}
.item .content{
 background-color: #ffffff;
 height: 100%;
 position: relative;
 left: 0;
 width: 100%;
 transition: all 0.3s;
}
.item .del-button {
 position: absolute;
 right: -140rpx;
 width: 140rpx;
 height: 100%;
 background-color: #df3448;
 color: #fff;
 top: 0;
 text-align: center;
 display: flex;
 justify-content: center;
 align-items: center;
 transition: all 0.3s;
 font-size: 24rpx;
}

<view class="box">
 <view class="item {{status ? '' :'active'}}">
  <view class="content">显示正常内容</view>
  <view class="del-button">删除</view>
 </view>
</view>

.item.active .content{
 left: -140rpx;
}
.item.active .del-button{
 right: 0;
}

data: {
  status:false //true为正常显示，false为显示删除按钮
 },

touchS(e) {
 // 获得起始坐标
 this.startX = e.touches[0].clientX;
 this.startY = e.touches[0].clientY;
}, 

touchM(e) {
  // 获得当前坐标
  this.currentX = e.touches[0].clientX;
  this.currentY = e.touches[0].clientY;
  const x = this.startX - this.currentX; //横向移动距离
  const y = Math.abs(this.startY - this.currentY); //纵向移动距离，若向左移动有点倾斜也可以接受
  if (x > 35 && y < 110) {
  //向左滑是显示删除
   this.setData({
    status: false
   })
  } else if (x < -35 && y < 110) {
  //向右滑
   this.setData({
    status: true
   })
  }
 },

<view class="box">
 <view class="item {{status ? '' :'active'}}">
  <view class="content" bindtouchstart="touchS" bindtouchmove="touchM">显示正常内容</view>
  <view class="del-button">删除</view>
 </view>
</view>