uniapp 学习笔记十六 底部菜单结构自定义搭建_uniapp底部子菜单

uniapp 学习笔记十六 底部菜单结构自定义搭建

底部菜单触发不同分类数据渲染

分类遮罩交互渲染

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-top margin-top">
                            口味筛选
                        </view>
                        <u-cell-group v-if="listShow">
                            <u-cell v-for="(itm,idx) in item.list" :title="itm.tname" isLink></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></u-cell>
                        </u-cell-group>
                    </view>
                </view>
            </view>
        </u-popup>
    </view>
</template>
 
<script>
    export default {
        data() {
            return {
                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.$store.state.num
            }
        },
        methods: {
            handleDetail(idx) {
                console.log(idx);
                uni.navigateTo({
                    url: '../detail/detail?idx=' + idx
                })
            },
            loadData(bcid = 1) {
                let skip = this.page * 8
                let url = `/1.1/classes/goods?where={"bcid":${bcid}}&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.loadData(bcid)
                }
                if (!bcid && !target) {
                    this.show = true
                }
            },
            handleClose(){
                this.show = false
            }
        },
        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>

page.json

{
            "path" : "pages/cake/cake",
            "style" :                                                                                    
            {
                "navigationBarTitleText": "",
                "enablePullDownRefresh": true,
                "navigationStyle": "custom"
            }
            
        },

nav-custom.vue

<template>
    <view class="cu-bar bg-white">
        <view class="action">
            <text class="cuIcon-locationfill text-gray"></text>
            重庆
        </view>
        <view class="content text-bold">
            Macoffee
        </view>
        <view class="action text-gray">
            <text class="cuIcon-search"></text>
            <u-line direction="col" length="15" margin="20upx"></u-line>
            <text class="cuIcon-sort"></text>
        </view>
    </view>
</template>
 
<script>
    export default {
        name:"nav-custom",
        data() {
            return {
                
            };
        }
    }
</script>
 
<style lang="scss">
    .cu-bar{
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        z-index: 2;
    }
</style>