uniapp 小程序实现自定义底部导航栏(tarbar)
在小程序开发中,默认底部导航栏很难满足实际需求,好在官方给出了自定义形式,效果如下:
话不多说,直接上代码
1.组件
custom-tarbar.vue文件
![](https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif)
<template> <view class="tarbar"> <view class=".tarbar-list" :style="{ background: tabBar.backgroundColor, color: tabBar.color, 'border-top': tabBar.position == 'bottom' ? '1rpx solid ' + tabBar.borderStyle : 0, 'border-bottom': tabBar.position == 'top' ? '1rpx solid ' + tabBar.borderStyle : 0 }" > <view class="tarbar-list-ul"> <view class="tarbar-list-li" :class="index == 2 ? 'tarbar-list-li-center' : ''" v-for="(item, index) in tabBar.list" :key="index" @click.top="setSelected(index)"> <block v-if="index != 2"> <view class="tarbar-list-li-icon"><image :src="selected == index ? item.selectedIconPath : item.iconPath" mode=""></image></view> <view class="tarbar-list-li-name">{{ item.text }}</view> </block> <block v-else> <view class="tarbar-list-li-icon"><image :src="item.selectedIconPath" mode=""></image></view> </block> </view> </view> </view> <block v-if="isShowMask"><release-popup @close-mask="closeMask"></release-popup></block> </view> </template> <script> import releasePopup from './release-popup.vue'; export default { components: { 'release-popup': releasePopup }, props: ['selected'], data() { return { tabBar: { color: '#ccc', selectedColor: '#E84351', borderStyle: '#ccc', backgroundColor: '#fff', position: 'bottom', list: [ { pagePath: '/pages/index/index', iconPath: '/static/tarbar/home1.png', selectedIconPath: '/static/tarbar/home2.png', text: '首页' }, { pagePath: '/pages/foodie/foodie', iconPath: '/static/tarbar/foodie1.png', selectedIconPath: '/static/tarbar/foodie2.png', text: '吃什么' }, { pagePath: '/pages/releaseBtn/releaseBtn', iconPath: '', selectedIconPath: '/static/tarbar/release.png' }, { pagePath: '/pages/discover/discover', iconPath: '/static/tarbar/discover1.png', selectedIconPath: '/static/tarbar/discover2.png', text: '发现' }, { pagePath: '/pages/personal/personal', iconPath: '/static/tarbar/personal1.png', selectedIconPath: '/static/tarbar/personal2.png', text: '我的' } ] }, oldSelected: 0, // 记录之前访问的索引; 值为2的时候显示遮罩 isShowMask: false }; }, onLoad() {}, methods: { setSelected(index) { console.log(index); if (index != 2) { uni.switchTab({ url: this.tabBar.list[index].pagePath }); } else { this.isShowMask = true; } this.$forceUpdate(); }, closeMask() { this.isShowMask = false; } } }; </script> <style> .tarbar { width: 100%; z-index: 9999; position: fixed; } .tarbar-list { width: 100%; height: 120upx; background: #4d586f; position: fixed; left: 0; bottom: 0; } .tarbar-list-ul { width: 100%; height: 100%; padding: 20upx 50upx; display: flex; justify-content: space-between; box-sizing: border-box; } .tarbar-list-li { width: 80upx; height: 80upx; } .tarbar-list-li-icon { width: 50upx; height: 50upx; margin: 0 auto; } .tarbar-list-li-icon image { width: 50upx; height: 50upx; } .tarbar-list-li-name { width: 100%; text-align: center; line-height: 30upx; font-size: 20upx; height: 30upx; } .tarbar-list-li-center { width: 100upx; } .tarbar-list-li-center .tarbar-list-li-icon, .tarbar-list-li-center .tarbar-list-li-icon image { width: 90upx; height: 60upx; } </style>
release-popup.vue文件(弹窗)
![](https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif)
<template> <view class="mask"> <view class="mask-top"> <view class="mask-title">唯美食与爱不可辜负</view> <view class="mask-desc">对于美食的热爱,如果用一句话来形容,那就是:唯美食与爱不可辜负。</view> <view class="mask-btn"> <view class="mask-btn-list" v-for="(item, index) in btnList" :key="index" @click.stop="toRelease(index)"> <view class="mask-btn-list-icon iconfont" :class="item.icon"></view> <view class="mask-btn-list-name">{{ item.name }}</view> </view> </view> </view> <view class="mask-close iconfont iconfabu-guanbi" @click.stop="closeMask"></view> </view> </template> <script> export default { data() { return { btnList: [ { icon: 'iconfabu-fashipin', name: '发视频' }, { icon: 'iconfabu-facaipu', name: '发菜谱' }, { icon: 'iconfabu-shaimeishi', name: '晒美食' }, { icon: 'iconfabu-caogaoxiang', name: '草稿箱' } ] }; }, methods: { closeMask() { this.$emit('close-mask'); }, toRelease(index) { let url = ''; if (index == 1) { url = ''; } else if (index == 2) { url = '/pages/release/release'; } else if (index == 3) { url = ''; } else { url = ''; } if (!url) { this.getMessage('敬请期待', 0); return; } uni.navigateTo({ url: url }); }, getMessage(title, icon = 0, duration = 2000, mask = true) { icon = icon == 1 ? 'success' : icon == 2 ? 'loading' : 'none'; uni.showToast({ title: title, icon: icon, duration: duration, mask: mask }); } } }; </script> <style> .mask { padding: 100upx 80upx 0; width: 100%; height: 100vh; background: #f6f7f7; position: relative; box-sizing: border-box; /* left: 0; top: 0; */ } .mask-top { width: 100%; color: #595656; } .mask-title { height: 100upx; line-height: 100upx; font-size: 50upx; } .mask-desc { width: 100%; height: 260upx; line-height: 50upx; font-size: 30upx; } .mask-btn { width: 100%; height: 560upx; padding: 0 10upx; display: flex; flex-wrap: wrap; justify-content: space-between; align-content: space-between; box-sizing: border-box; } .mask-btn-list { width: 260upx; height: 260upx; border-radius: 20upx; background: #007aff; padding: 70upx; box-sizing: border-box; } .mask-btn-list:nth-child(1) { background: -webkit-linear-gradient(30deg, #fadde9, #eb68a3); /* Safari 5.1 - 6.0 */ background: -o-linear-gradient(30deg, #fadde9, #eb68a3); /* Opera 11.1 - 12.0 */ background: -moz-linear-gradient(30deg, #fadde9, #eb68a3); /* Firefox 3.6 - 15 */ background: linear-gradient(30deg, #fadde9, #eb68a3); /* 标准的语法(必须放在最后) */ color: #5d163a; } .mask-btn-list:nth-child(2) { background: -webkit-linear-gradient(30deg, #d7e378, #1eb7b6); /* Safari 5.1 - 6.0 */ background: -o-linear-gradient(30deg, #d7e378, #1eb7b6); /* Opera 11.1 - 12.0 */ background: -moz-linear-gradient(30deg, #d7e378, #1eb7b6); /* Firefox 3.6 - 15 */ background: linear-gradient(30deg, #d7e378, #1eb7b6); /* 标准的语法(必须放在最后) */ color: #113d41; } .mask-btn-list:nth-child(3) { background: -webkit-linear-gradient(30deg, #a7daf6, #7b4d9b); /* Safari 5.1 - 6.0 */ background: -o-linear-gradient(30deg, #a7daf6, #7b4d9b); /* Opera 11.1 - 12.0 */ background: -moz-linear-gradient(30deg, #a7daf6, #7b4d9b); /* Firefox 3.6 - 15 */ background: linear-gradient(30deg, #a7daf6, #7b4d9b); /* 标准的语法(必须放在最后) */ color: #2a274c; } .mask-btn-list:nth-child(4) { background: -webkit-linear-gradient(30deg, #ffef01, #ee7437); /* Safari 5.1 - 6.0 */ background: -o-linear-gradient(30deg, #ffef01, #ee7437); /* Opera 11.1 - 12.0 */ background: -moz-linear-gradient(30deg, #ffef01, #ee7437); /* Firefox 3.6 - 15 */ background: linear-gradient(30deg, #ffef01, #ee7437); /* 标准的语法(必须放在最后) */ color: #562f15; } .mask-btn-list-icon { width: 100%; height: 70upx; line-height: 70upx; text-align: center; font-size: 50upx; } .mask-btn-list-name { width: 100%; height: 50upx; line-height: 50upx; text-align: center; font-size: 30upx; } .mask-close { width: 80upx; height: 80upx; position: absolute; left: 50%; margin-left: -40upx; bottom: 40upx; font-size: 50upx; line-height: 80upx; text-align: center; color: #595656; } </style>
2.调用
![](https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif)
<template> <view class="content"> <custom-tarbar :selected="0"></custom-tarbar> <view class="home"> home </view> </view> </template> <script> import customTarbar from '@/wxcomponents/custom-tarbar/custom-tarbar.vue'; export default { components: { 'custom-tarbar': customTarbar } }; </script> <style> .content { width: 100%; } </style>
注意:组件传值(selected)索引对应默认从0开始