uniapp 学习笔记十八分类菜单触发商品数据更新

短命女 2024-04-07 10:16 81阅读 0赞

uniapp 学习笔记十八 分类菜单触发商品数据更新

![4519b8ac1d334f2aaa2dee613c795bc2.png][]

**cake.vue**

<template>
        <view>
            <nav-custom></nav-custom>
            <view class="cont">
                <good-item v-for="(item,index) in glist" :gdata="item"></good-item>
            </view>
            <view class="fixed flex justify-center bg-fff padding-sm">
                <view v-for="(item,index) in tabArr" :key="index" @tap="handleTab(item)"
                    class="flex justify-around align-center">
                    <view class="">{
       {item.name}}</view>
                    <u-line v-if="index<tabArr.length-1" direction="col" length="15" margin="30upx"></u-line>
                </view>
            </view>
            <u-popup :show="show" mode="left" @close="handleClose">
                <view class="pop-cont">
                    <view v-for="(item,index) in cfylist" class="padding-sm u-border-bottom">
                        {
       {item.bname}}
                        <view v-if="index==0">
                            <view 
                                @tap="listShow=!listShow" 
                                :class="['padding-tb-sm',{'u-border-bottom':!listShow}]"
                            >
                                口味筛选
                            </view>
                            <u-cell-group v-if="listShow">
                                <u-cell 
                                    v-for="(itm,idx) in item.list" 
                                    :title="itm.tname" 
                                    isLink
                                    @click="handleList(itm,1)" 
                                ></u-cell>
                            </u-cell-group>
                            <view @tap="sceneShow=!sceneShow" class="padding-tb-sm u-border-top">
                                场景筛选
                            </view>
                            <u-cell-group v-if="sceneShow">
                                <u-cell 
                                v-for="(itm,idx) in item.scene" 
                                :title="itm.tname" 
                                isLink                            
                                @click="handleList(itm,2)" 
                            ></u-cell>
                            </u-cell-group>
                        </view>
                    </view>
                </view>
            </u-popup>
        </view>
    </template>
    
    <script>
        export default {
            data() {
                return {
                    // condition:{ // 商品列表查询条件对象
                    //     bcid:1,
                    // },
                    cfylist:[],
                    sceneShow:false,
                    listShow:false,
                    show: false,
                    glist: [],
                    page: 0,
                    tabArr: [{
                            name: '分类',
                            bcid: '',
                            target: ''
                        },
                        {
                            name: '蛋糕',
                            bcid: '1',
                            target: '/pages/cake'
                        },
                        {
                            name: '面包',
                            bcid: '11',
                            target: '/pages/bread'
                        },
                        {
                            name: '小食',
                            bcid: '6',
                            target: '/pages/food'
                        },
                        {
                            name: '购物车',
                            bcid: '',
                            target: '/pages/cart'
                        }
                    ]
                }
            },
            computed:{
                num(){
                    return this.$store.state.count.num
                },
                condition(){
                    return this.$store.state.condition.cond
                }
            },
            methods: {
                handleDetail(idx) {
                    console.log(idx);
                    uni.navigateTo({
                        url: '../detail/detail?idx=' + idx
                    })
                },
                loadData() {
                    let skip = this.page * 8
                    let wh = JSON.stringify(this.condition)
                    let url = `/1.1/classes/goods?where=${wh}&limit=8&skip=${skip}`;
                    this.$get(url).then(res => {
                        uni.stopPullDownRefresh()
                        let {
                            results
                        } = res
                        if (results.length) {
                            this.page++
                            this.glist = [
                                ...this.glist,
                                ...res.results
                            ]
                            return
                        }
                        uni.showToast({
                            title: '这回真没了...',
                            icon: 'none'
                        })
                    })
                },
                handleTab(item) {
                    let {
                        bcid,
                        target
                    } = item
                    if (bcid) {
                        // this.glist = []
                        // this.page = 0
                        // this.condition.bcid = Number(bcid)
                        this.$store.commit('changeCondition',{
                            bcid:Number(bcid)
                        })
                        this.reloadData()
                    }
                    if (!bcid && !target) {
                        this.show = true
                    }
                },
                handleClose(){
                    this.show = false
                },
                handleList({bid,tid},type){
                    // 口味场景筛选
                    // console.log(typeof bid);
                    let obj = {bcid:bid}
                    type === 1 ? obj.fid=tid : obj.sid=tid
                    this.$store.commit('changeCondition',obj)
                    this.reloadData()
                },
                reloadData(){ //刷新页面数据
                    this.glist = []
                    this.page = 0
                    this.loadData()
                }
            },
            onLoad() {
                this.loadData()            
                this.$get('/1.1/classes/classify').then(res=>{
                    console.log(res)
                    this.cfylist = res.results
                })
            },
            onReachBottom() {
                console.log('触底了');
                this.loadData()
            },
            onPullDownRefresh() {
                this.glist = []
                this.page = 0
                this.loadData()
            }
        }
    </script>
    
    <style lang="scss">
    page {
        padding-top: 100upx;
        padding-bottom: 120upx;
    }
    
    .cont {
        display: flex;
        flex-wrap: wrap;
        padding: 15upx;
        justify-content: space-between;
    }
    
    .fixed {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        box-shadow: 0 0 10upx 2upx rgba(0, 0, 0, 0.2);
    }
    .cu-bar{
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        z-index: 2;
    }
    .pop-cont{
        width: 400upx;
        margin-top: 200upx;
    }
    </style>

[4519b8ac1d334f2aaa2dee613c795bc2.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/07/4bba0d510988440194c9dd852345dddf.png