uniapp 学习笔记十六底部菜单结构自定义搭建

古城微笑少年丶 2024-04-08 13:49 79阅读 0赞

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

![b852416eb3d8454d8a603bed6174fa2c.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-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>

[b852416eb3d8454d8a603bed6174fa2c.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/08/f9dfb0e157ce46a68ef4d9f0bdc3b610.png