微信小程序实现左滑修改、删除功能

 
 
 
 
 
  
  
  
  {{item.title}}党建项目报价表
  
  
  
  
  
  {{item.create_time}}
  
  
  
 
 

 
 
 
 

.offer-item {
 height: 150rpx;
 width: 100vw;
 overflow-x: hidden;
 border-bottom: 1px solid #f0f0f0;
}

.offer-item>view {
 position: absolute;
 /* width: calc(100% + 200rpx); */
 height: 150rpx; 
}

.offer-item .offer-item-top {
 height: 100%;
}

.offer-item .offer-item-top navigator {
 display: inline-block;
 width: 100vw; 
 height: 100%;
}

.offer-item .content {
 padding: 35rpx 30rpx;
 position: relative;
 height: calc(100% - 70rpx);
}

.offer-item .title .fl {
 display: inline-block;
 width: 78%;
 overflow: hidden;
 text-overflow: ellipsis;
 white-space: nowrap;
 font-size: 30rpx;
 color: #333;
}

.offer-item .title .fr {
 display: inline-block;
 width: 20rpx;
 height: 26rpx;
 margin-top: 5rpx;
}

.offer-item .note {
 position: absolute;
 left: 30rpx;
 bottom: 35rpx;
 width: calc(100vw - 60rpx);
 font-size: 24rpx;
 color: #999;
}

.offer-item .posit {
 width: 200rpx;
 height: 150rpx;
 line-height: 150rpx;
 text-align: center;
 display: none
}

.posit.isMove {
 display: inline-block;
 position: absolute;
}

.posit.isMove[hidden] {
 display: none
}

.offer-item .posit>view {
 display: inline-block;
 width: 100rpx;
}

.offer-item .posit>view:first-of-type {
 background-color: #FED847;
}

.offer-item .posit>view:last-of-type {
 background-color: #C71B1B;
}

.offer-item .posit image {
 display: inline-block;
 width: 36rpx;
 height: 36rpx;
}

let len = 0;  // 初次加载长度
let hadLastPage = false; // 判断是否到最后一页

var initdata = function (that) {
 var list = that.data.offerList
 for (var i = 0; i  0) {  // 移动距离大于0，文本层left值等于手指移动距离
 txtStyle = "left:-" + disX + "px";
 if (disX >= delBtnWidth) {
  // 控制手指移动距离最大值为删除按钮的宽度
  txtStyle = "left:-" + delBtnWidth + "px";
 }
 }
 // 获取手指触摸的是哪一个item
 var index = e.currentTarget.dataset.index;
 var list = that.data.offerList;
 // 将拼接好的样式设置到当前item中
 list[index].txtStyle = txtStyle;

 list[index].isMove = true;
 // 更新列表的状态
 this.setData({
 offerList: list
 });
 }
 },
 touchE: function (e) {
 console.log( e);
 var that = this
 if (e.changedTouches.length == 1) {
 // 手指移动结束后触摸点位置的X坐标
 var endX = e.changedTouches[0].clientX;
 // 触摸开始与结束，手指移动的距离
 var disX = that.data.startX - endX;
 var delBtnWidth = that.data.delBtnWidth;
 // 如果距离小于删除按钮的1/2，不显示删除按钮
 var txtStyle = disX > delBtnWidth / 2 &＃63; "left:-" + delBtnWidth + "px" : "left:0px";
 // 获取手指触摸的是哪一项
 var index = e.currentTarget.dataset.index;
 var list = that.data.offerList;
 list[index].txtStyle = txtStyle;
 // 更新列表的状态
 that.setData({
 offerList: list
 });
 }
 },

 /**
 * 
 */
 navigatorTo: function (event) {

 },

 /**
 * 删除操作
 */
 del: function (e) {
 var that = this;
 var data = {
 id: e.currentTarget.dataset.index
 };
 wx.showModal({
 title: '',
 content: '确定选择删除么？',
 confirmColor: '#C71B1B',
 cancelColor: '#666666',
 success: function (res) {
 if (res.confirm) {
  utils.requestFun("接口url", data, 'POST', function (msg) {
  console.log(msg)

  wx.showToast({
  title: '删除成功',
  icon: 'success',
  duration: 1500
  })
  var lists = that.data.offerList;
  var list1 = [];
  for (let i = 0; i