Page({
data:{
carts: [
{cid:1008,title:'Zippo打火机',image:'https://img12.360buyimg.com/n7/jfs/t2584/348/1423193442/572601/ae464607/573d5eb3N45589898.jpg',num:'1',price:'198.0',sum:'198.0',selected:true},
{cid:1012,title:'iPhone7 Plus',image:'https://img13.360buyimg.com/n7/jfs/t3235/100/1618018440/139400/44fd706e/57d11c33N5cd57490.jpg',num:'1',price:'7188.0',sum:'7188.0',selected:true},
{cid:1031,title:'得力订书机',image:'https://img10.360buyimg.com/n7/jfs/t2005/172/380624319/93846/b51b5345/5604bc5eN956aa615.jpg',num:'3',price:'15.0',sum:'45.0',selected:false},
{cid:1054,title:'康师傅妙芙蛋糕',image:'https://img14.360buyimg.com/n7/jfs/t2614/323/914471624/300618/d60b89b6/572af106Nea021684.jpg',num:'2',price:'15.2',sum:'30.4',selected:false},
{cid:1063,title:'英雄钢笔',image:'https://img10.360buyimg.com/n7/jfs/t1636/60/1264801432/53355/bb6a3fd1/55c180ddNbe50ad4a.jpg',num:'1',price:'122.0',sum:'122.0',selected:true},
]
}
})
<view class="container carts-list">
<view wx:for="{{carts}}" class="carts-item" data-title="{{item.title}}" data-url="{{item.url}}" bindtap="bindViewTap">
<view>
<image class="carts-image" src="{{item.image}}" mode="aspectFill"/>
</view>
<view class="carts-text">
<text class="carts-title">{{item.title}}</text>
<view class="carts-subtitle">
<text class="carts-price">{{item.sum}}</text>
<text>WXStepper</text>
</view>
</view>
</view>
</view>
/*外部容器*/
.container {
display: flex;
flex-direction: column;
align-items: center;
justify-content: space-between;
box-sizing: border-box;
}
/*整体列表*/
.carts-list {
display: flex;
flex-direction: column;
padding: 20rpx 40rpx;
}
/*每行单元格*/
.carts-item {
display: flex;
flex-direction: row;
height:150rpx;
/*width属性解决标题文字太短而缩略图偏移*/
width:100%;
border-bottom: 1px solid #eee;
padding: 30rpx 0;
}
/*左部图片*/
.carts-image {
width:150rpx;
height:150rpx;
}
/*右部描述*/
.carts-text {
width: 100%;
display: flex;
flex-direction: column;
justify-content: space-between;
}
/*右上部分标题*/
.carts-title {
margin: 10rpx;
font-size: 30rpx;
}
/*右下部分价格与数量*/
.carts-subtitle {
font-size: 25rpx;
color:darkgray;
padding: 0 20rpx;
display: flex;
flex-direction: row;
justify-content:space-between;
}
/*价格*/
.carts-price {
color: #f60;
}
<view class="stepper">
<!-- 减号 -->
<text class="{{minusStatuses[index]}}" data-index="{{index}}" bindtap="bindMinus">-</text>
<!-- 数值 -->
<input type="number" bindchange="bindManual" value="{{item.num}}" />
<!-- 加号 -->
<text class="normal" data-index="{{index}}" bindtap="bindPlus">+</text>
</view>
bindMinus: function(e) {
var index = parseInt(e.currentTarget.dataset.index);
var num = this.data.carts[index].num;
// 如果只有1件了,就不允许再减了
if (num > 1) {
num --;
}
// 只有大于一件的时候,才能normal状态,否则disable状态
var minusStatus = num <= 1 ? 'disabled' : 'normal';
// 购物车数据
var carts = this.data.carts;
carts[index].num = num;
// 按钮可用状态
var minusStatuses = this.data.minusStatuses;
minusStatuses[index] = minusStatus;
// 将数值与状态写回
this.setData({
carts: carts,
minusStatuses: minusStatuses
});
},
bindPlus: function(e) {
var index = parseInt(e.currentTarget.dataset.index);
var num = this.data.carts[index].num;
// 自增
num ++;
// 只有大于一件的时候,才能normal状态,否则disable状态
var minusStatus = num <= 1 ? 'disabled' : 'normal';
// 购物车数据
var carts = this.data.carts;
carts[index].num = num;
// 按钮可用状态
var minusStatuses = this.data.minusStatuses;
minusStatuses[index] = minusStatus;
// 将数值与状态写回
this.setData({
carts: carts,
minusStatuses: minusStatuses
});
},
<!-- 复选框图标 -->
<icon wx:if="{{item.selected}}" type="success_circle" size="20" bindtap="bindCheckbox" data-index="{{index}}"/>
<icon wx:else type="circle" size="20" bindtap="bindCheckbox" data-index="{{index}}"/>
/*复选框样式*/
.carts-list icon {
margin-top: 60rpx;
margin-right: 20rpx;
}
bindCheckbox: function(e) {
/*绑定点击事件,将checkbox样式改变为选中与非选中*/
//拿到下标值,以在carts作遍历指示用
var index = parseInt(e.currentTarget.dataset.index);
//原始的icon状态
var selected = this.data.carts[index].selected;
var carts = this.data.carts;
// 对勾选状态取反
carts[index].selected = !selected;
// 写回经点击修改后的数组
this.setData({
carts: carts
});
}
<view class="carts-footer">
<view bindtap="bindSelectAll">
<icon wx:if="{{selectedAllStatus}}" type="success_circle" size="20"/>
<icon wx:else type="circle" size="20" />
<text>全选</text>
</view>
<view class="button">立即结算</view>
</view>
display: flex; flex-direction: row; justify-content: space-between;
/*底部按钮*/
.carts-footer {
width: 100%;
height: 80rpx;
display: flex;
flex-direction: row;
justify-content: space-between;
}
/*复选框*/
.carts-footer icon {
margin-left: 20rpx;
}
/*全选字样*/
.carts-footer text {
font-size: 30rpx;
margin-left: 8rpx;
line-height: 10rpx;
}
/*立即结算按钮*/
.carts-footer .button {
line-height: 80rpx;
text-align: center;
width:220rpx;
height: 80rpx;
background-color: #f60;
color: white;
font-size: 36rpx;
border-radius: 0;
border: 0;
}
bindSelectAll: function() {
// 环境中目前已选状态
var selectedAllStatus = this.data.selectedAllStatus;
// 取反操作
selectedAllStatus = !selectedAllStatus;
// 购物车数据,关键是处理selected值
var carts = this.data.carts;
// 遍历
for (var i = 0; i < carts.length; i++) {
carts[i].selected = selectedAllStatus;
}
this.setData({
selectedAllStatus: selectedAllStatus,
carts: carts
});
}
<toast hidden="{{toastHidden}}" bindchange="bindToastChange">
{{toastStr}}
</toast>
bindCheckout: function() {
// 初始化toastStr字符串
var toastStr = 'cid:';
// 遍历取出已勾选的cid
for (var i = 0; i < this.data.carts.length; i++) {
if (this.data.carts[i].selected) {
toastStr += this.data.carts[i].cid;
toastStr += ' ';
}
}
//存回data
this.setData({
toastHidden: false,
toastStr: toastStr
});
},
bindToastChange: function() {
this.setData({
toastHidden: true
});
}
position: fixed; bottom: 0; border-top: 1px solid #eee;
sum: function() {
var carts = this.data.carts;
// 计算总金额
var total = 0;
for (var i = 0; i < carts.length; i++) {
if (carts[i].selected) {
total += carts[i].num * carts[i].price;
}
}
// 写回经点击修改后的数组
this.setData({
carts: carts,
total: '¥' + total
});
}
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