滑動方式 · 小程序-shop商城開發手冊

豎向滑動: <scroll-view scroll-y="true" style="height: 200rpx;"> <view style="background: red; width: 200px; height: 100px; display: inline-block" ></view> <view style="background: green; width: 200px; height: 100px; display: inline-block"></view> <view style="background: blue; width: 200px; height: 100px; display: inline-block"></view> <view style="background: yellow; width: 200px; height: 100px; display: inline-block"></view> </scroll-view> 橫向滑動： white-space normal: 正常無變化(默認處理方式.文本自動處理換行.假如抵達容器邊界內容會轉到下一行) pre: 保持HTML源代碼的空格與換行,等同與pre標簽 nowrap: 強制文本在一行,除非遇到br換行標簽 pre-wrap: 同pre屬性,但是遇到超出容器范圍的時候會自動換行 pre-line: 同pre屬性,但是遇到連續空格會被看作一個空格 inherit: 繼承 <scroll-view scroll-x="true" style=" white-space: nowrap; display: flex" > <view style="background: red; width: 200px; height: 100px; display: inline-block" ></view> <view style="background: green; width: 200px; height: 100px; display: inline-block"></view> <view style="background: blue; width: 200px; height: 100px; display: inline-block"></view> <view style="background: yellow; width: 200px; height: 100px; display: inline-block"></view> </scroll-view> 左滑刪除 js var initdata = function (that) { var list = that.data.list for (var i = 0; i < list.length; i++) { list[i].txtStyle = "" } that.setData({ list: list }) } Page({ data: { delBtnWidth: 180,//刪除按鈕寬度單位（rpx） list: [ { txtStyle: "", icon: "/images/qcm.png", txt: "左滑刪除" }, { txtStyle: "", icon: "/images/qcm.png", txt: "左滑刪除" }, { txtStyle: "", icon: "/images/qcm.png", txt: "左滑刪除" }, { txtStyle: "", icon: "/images/qcm.png", txt: "左滑刪除" }, ] }, onLoad: function (options) { // 頁面初始化 options為頁面跳轉所帶來的參數 this.initEleWidth(); }, touchS: function (e) { if (e.touches.length == 1) { this.setData({ //設置觸摸起始點水平方向位置 startX: e.touches[0].clientX }); } }, touchM: function (e) { var that = this initdata(that) if (e.touches.length == 1) { //手指移動時水平方向位置 var moveX = e.touches[0].clientX; //手指起始點位置與移動期間的差值 var disX = this.data.startX - moveX; var delBtnWidth = this.data.delBtnWidth; var txtStyle = ""; if (disX == 0 || disX < 0) {//如果移動距離小于等于0，文本層位置不變 txtStyle = "left:0px"; } else if (disX > 0) {//移動距離大于0，文本層left值等于手指移動距離 txtStyle = "left:-" + disX + "px"; if (disX >= delBtnWidth) { //控制手指移動距離最大值為刪除按鈕的寬度 txtStyle = "left:-" + delBtnWidth + "px"; } } //獲取手指觸摸的是哪一項 var index = e.target.dataset.index; var list = this.data.list; list[index].txtStyle = txtStyle; //更新列表的狀態 this.setData({ list: list }); } }, touchE: function (e) { if (e.changedTouches.length == 1) { //手指移動結束后水平位置 var endX = e.changedTouches[0].clientX; //觸摸開始與結束，手指移動的距離 var disX = this.data.startX - endX; var delBtnWidth = this.data.delBtnWidth; //如果距離小于刪除按鈕的1/2，不顯示刪除按鈕 var txtStyle = disX > delBtnWidth / 2 ? "left:-" + delBtnWidth + "px" : "left:0px"; //獲取手指觸摸的是哪一項 var index = e.target.dataset.index; var list = this.data.list; list[index].txtStyle = txtStyle; //更新列表的狀態 this.setData({ list: list }); } }, //獲取元素自適應后的實際寬度 getEleWidth: function (w) { var real = 0; try { var res = wx.getSystemInfoSync().windowWidth; var scale = (750 / 2) / (w / 2);//以寬度750px設計稿做寬度的自適應 // console.log(scale); real = Math.floor(res / scale); return real; } catch (e) { return false; // Do something when catch error } }, initEleWidth: function () { var delBtnWidth = this.getEleWidth(this.data.delBtnWidth); this.setData({ delBtnWidth: delBtnWidth }); }, //點擊刪除按鈕事件 delItem: function (e) { //寫刪除事件 } }) wxml文件代碼： <view class="item-box"> <view class="items"> <view wx:for="{{list}}" wx:key="{{index}}" class="item"> <view bindtouchstart="touchS" bindtouchmove="touchM" bindtouchend="touchE" data-index="{{index}}" style="{{item.txtStyle}}" class="inner txt"> <image class="item-icon" mode="widthFix" src="{{item.icon}}"></image>{{index}}{{item.txt}}</view> <view data-index="{{index}}" bindtap = "delItem" class="inner del">刪除</view> </view> </view> </view> wxss文件代碼: view{ box-sizing: border-box; } .item-box{ width: 700rpx; margin: 0 auto; padding:40rpx 0; } .items{ width: 100%; } .item{ position: relative; border-top: 2rpx solid #eee; height: 120rpx; line-height: 120rpx; overflow: hidden; } .item:last-child{ border-bottom: 2rpx solid #eee; } .inner{ position: absolute; top:0; } .inner.txt{ background-color: #fff; width: 100%; z-index: 5; padding:0 10rpx; transition: left 0.2s ease-in-out; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; } .inner.del{ background-color: #e64340; width: 180rpx;text-align: center; z-index: 4; right: 0; color: #fff } .item-icon{ width: 64rpx; vertical-align: middle; margin-right: 16rpx } .thumb{ width: 200px; height: 200px; -webkit-overflow-scrolling: touch; overflow: scroll; }