微信小程序（五）购物车-Toy模板网

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shoppingcart.wxml

<!--pages/shoppingcart/shoppingcart.wxml-->
<view class="content">
    <view class="info">
    <view class="line"></view>
    <view class="receive">
    购物
    </view>
    <view class="line"></view>
    <view class="items">
    <checkbox-group bindchange="checkboxChange">
    <block wx:for="{{orders}}">
    <view class="item">
        <view class="icon">
        <label for="{{item.id}}">
        <checkbox id="{{item.id}}" value="{{item.id}}" checked=
        "{{item.selected}}" hidden/>
        <icon type="{{item.selected==true?'success':'circle'}}"
        color="#E4393C" data-value="{{item.id}}" size="20" />
        </label>
        </view>
        <view class="pic">
        <image src="{{item.pic}}" style="width:80px;height:80px;">
        </image>
        </view>
        <view class="order">
        <view class="title">{{item.name}}</view>
        <view class="desc">
        <view>数量: {{item.quantity}}</view>
        </view>
        <view class="priceInfo">
        <view class="price">￥{{item.nowPrice}}</view>
        <view class="minus" id="{{item.id}}" bindtap="minusOrders">-</view>
        <view class="count">{{item.quantity}}</view>
        <view class="add" id="{{item.id}}" bindtap="addOrders">+
        </view>
        </view>
        </view>
        </view>
        <view class="line"></view>
        </block>
        </checkbox-group>
        <checkbox-group bindchange="checkAll">
        <view class="totalInfo">
        <view class="all">
        <view>
        <label for="boxAll">
        <checkbox checked="{{selectedAll}}" id="boxAll" hidden/>
        <icon type="{{selectedAll==true?'success':'circle'}}"
        color="#E4393C" data-value="{{item.id}}" size="20" />
        </label>
    </view>
    <view>
    全选
    </view>
    </view>
    <view class="amount">
    <view class="total">
    总计:￥{{totalPrice}}元
    </view>
    <view>
    不含运费，已优惠￥0.00
    </view>
    </view>
    <view class="opr">去结算</view>
    </view>
    </checkbox-group>
    </view>
    </view>
    </view>

shoppingcart.js

// pages/shoppingcart/shoppingcart.js
Page({
    data:{
        orders: [], //加人到购物车里的商品集合
        selectedAll:false, //全选按钮标志位，true 代表全选选中，false代表全选未选中
        totalPrice:0 //总金额
        
    },
    onLoad:function (options) {
        this.loadOrders();
        wx.setNavigationBarTitle({ //动态修改页面标题文字
            title: '购物车'
        })
        wx.setNavigationBarColor({
            frontColor: '#000000', //导航文字颜色
            backgroundColor: '#ffffff', //导航背景色
            animation: { //动画效果
                duration: 400,
                timingFunc: 'easeIn'
            }
        })
    },
    loadOrders:function () { //加载购物车里的商品
        var orders = wx.getStorageSync('orders'); //从本地级存数据orders里获取数据
        var newOrders = [];
        var totalPrice = 0;
        var selectedAll = true;
        for (var i = 0; i < orders.length; i++) {
            var order = orders[i];
            if (order.selected) { //购物车里的每件商品都有一个selected属性，selected等于true时代表这件商品被选中，要计算金额
                totalPrice += order.nowPrice * order.quantity; //计算选中商品的金额
            } else {
                selectedAll = false; //购物车里的商品，如果有一一件是未选中的，selectedAll全选标志位就等于false
            }
            newOrders.push(order);
        }
        wx.setStorageSync("orders", newOrders); //重新加入缓存
        this.setData({totalPrice:totalPrice,orders:newOrders,selectedAll: selectedAll});//数据绑定到页面里
    },
    checkboxChange: function (e) { //每件商品前的复选框操作函数
        var ids = e.detail.value; //会把选中的复选框的id值，以数组集合的形式传递过来
        var orders = wx.getStorageSync('orders');
        var totalPrice = 0;
        var newOrders = [];
        for (var i = 0; i < orders.length; i++) {
            var order = orders[i];
            var flag = true;
            for (var j = 0; j < ids.length; j++) {
                if (order.id == ids[j]) { //传递过来的ids数组集合值，都是选中的 商品，需要计算总的金额
                    totalPrice += order.nowPrice * order.quantity;
                    order.selected = true; //代表该商 品是选中状态
                    flag = false; //代表该商品是选中状态
                }
            }
            if (flag) { //代表该商品是未选中状态

                order.selected = false;
            }
            newOrders.push(order);
        }
        wx.setStorageSync("orders", newOrders); //重新加人缓存数据
        this.loadOrders();//重新加载页面
    }, 
    checkAll: function (e) { //全选复选框操作函数
        var orders = wx.getStorageSync("orders");
        console.log(e);
        var newOrders = [];
        var selectedAll = this.data.selectedAll;
        for (var i = 0; i < orders.length; i++) {
            var order = orders[i];
            if (selectedAll) { //如果当前状态值是全选中， 那么再单击的时候，全选复选框应该为未选中状态
                order.selected = false;
            } else {
                order.selected = true;
            }
            newOrders.push(order);
        }
        wx.setStorageSync("orders", newOrders) //重新加入缓存数据
        this.loadOrders(); //重新加载页面
    },
    addOrders: function (e) { //添加商品数量 函数
        var id = e.currentTarget.id;
        var orders = wx.getStorageSync('orders');
        var addOrders = new Array();
        for (var i = 0; i < orders.length; i++) {
            var order = orders[i];
            if (order.id == id) {
                var quantity = order.quantity;
                order.quantity = quantity + 1; //将该件商品数量加1
            }
            addOrders[i] = order;
        }
        wx.setStorageSync('orders', addOrders); //重新加人缓存数据
        this.loadOrders(); //重新加载页面
    },

    minusOrders: function (e) { //减少商品数量函数
        console.log(e);
        var id = e.currentTarget.id;
        var orders = wx.getStorageSync('orders');
        var addOrders = new Array();
        var add = true;
        for (var i = 0; i < orders.length; i++) {
            var order = orders[i];
            if (order.id == id) {
                var count = order.quantity;
                if (count >= 2) {
                    order.quantity = count - 1; //将该件商 品数量减1
                }
            }
            addOrders[i] = order;
        }
        wx.setStorageSync('orders', addOrders); //重新加人缓存数据
        this.loadOrders(); //重新加载页面
    }
    

})

shoppingcart.wxss

/* pages/shoppingcart/shoppingcart.wxss */
.content {
    font-family: "Microsoft YaHei";
    height: 600px;
    background-color: #F9F9F8;
}

.info {
    background-color: #ffffff;
}

.line {
    border: 1px solid #CCCCCC;
    opacity: 0.2;
}

.receive {
    display: flex;
    flex-direction: row;
    padding: 10px;
}

.item {
    display: flex;
    flex-direction: row;
    padding: 10px;
    align-items: center;
}

.order {
    width: 100%;
    height: 87px;
}

.title {
    font-size: 15px;
}

.desc {
    display: flex;
    flex-direction: row;
    font-size: 13px;
    color: #cccccc;
}

.desc view {
    margin-right: 10px;
}

.priceInfo {
    display: flex;
    flex-direction: row;
    margin-top: 10px;
}

.price {
    width: 65%;
    font-size: 15px;
    color: #ff0000;
    text-align: left;
}

.minus,
.add {
    border: 1px solid #cccccC;
    width: 25px;
    text-align: center;
}

.count {
    border-top: 1px solid #cccccc;
    border-bottom: 1px solid #cCCCCC;
    width: 40px;
    text-align: center;
}

.totalInfo {
    display: flex;
    flex-direction: row;
    height: 60px;
}

.all {
    align-items: center;
    Padding-left: 10px;
    width: 20%;
    font-size: 12px;
    margin-top: 10px;
}

.amount {
    width: 50%;
    font-size: 13px;
    text-align: right;
}

.total {
    font-size: 16px;
    color: #ff0000;
    font-weight: bold;
    margin-bottom: 10px;
}

.opr {
    position: absolute;
    right: 0px;
    width: 92px;
    font-size: 15px;
    font-weight: bold;
    background-color: #E4393C;
    height: 60px;
    text-align: center;
    line-height: 60px;
    color: #ffffff;
}

.icon {
    margin-right: 10px;
}

效果图

微信小程序loadorder:function(orderid)什么意思,微信小程序,微信小程序,前端