Vue.js-TabBar实现

Posted 2021-05-15 guardwhy

1.1 项目目录

创建项目: vue init webpack tabbardemo

1.2 项目实现代码

项目所需的图片：https://pan.baidu.com/s/1T0LxSsT4yGamy3giIKcNFw 提取码：bo79

App.vue

<template>
  <div id="app">
    <!--使用组件-->
    <router-view></router-view>
   <main-tab-bar></main-tab-bar>
  </div>
</template>

<script>
// 导入主键
import MainTabBar from "components/maintabbar/MainTabBar";

export default {
  name: 'App',
  // 注册组件
  components:{
    MainTabBar
  }
  
}
</script>

<style>
  @import "./assets/css/base"
</style>

MainTabBar.vue

<template>
  <tab-bar>
    <tab-bar-item path="/home" active-color="pink">
      <img slot="item-icon" src="~assets/img/tabbr/home.svg" alt="">
      <img slot="item-icon-active" src="~assets/img/tabbr/home_active.svg" alt="">
      <div slot="item-text">首页</div>
    </tab-bar-item>
    <tab-bar-item path="/category" active-color="pink">
      <img slot="item-icon" src="~assets/img/tabbr/category.svg" alt="">
      <img slot="item-icon-active" src="~assets/img/tabbr/category_active.svg" alt="">
      <div slot="item-text">分类</div>
    </tab-bar-item>
    <tab-bar-item path="/cart" active-color="pink">
      <img slot="item-icon" src="~assets/img/tabbr/shopcart.svg" alt="">
      <img slot="item-icon-active" src="~assets/img/tabbr/shopcart_active.svg" alt="">
      <div slot="item-text">购物车</div>
    </tab-bar-item>
    <tab-bar-item path="/profile" active-color="deepPink">
      <img slot="item-icon" src="~assets/img/tabbr/profile.svg" alt="">
      <img slot="item-icon-active" src="~assets/img/tabbr/profile_active.svg" alt="">
      <div slot="item-text">我的</div>
    </tab-bar-item>
  </tab-bar>
</template>

<script>
// 导入组件
import TabBarItem from 'components/tabber/TabBarItem'
import TabBar from 'components/tabber/TabBar'
    export default {
        name: "MainTabBar",
        components: {
            TabBarItem,
            TabBar
        }
    }
</script>

<style scoped>
</style>

TabBar.vue

<template>
  <div id="tab-bar">
    <slot></slot>
  </div>
</template>

<script>
  export default {
    name: "TabBar"
  }
</script>

<style scoped>
  #tab-bar{
    display: flex;
    background-color: #ff6666;

    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    box-shadow: 0 -1px 1px rgba(100, 100, 100,.2);
  }
</style>

TabBarItem.vue

<template>
  <div class="tab-bar-item" @click="itemClick">
    <div v-if="!isActive"><slot name="item-icon"></slot></div>
    <div v-else><slot name="item-icon-active"></slot></div>
    <div :style="activeStyle"><slot name="item-text"></slot></div>
  </div>
</template>

<script>
    export default {
        name: "TabBarItem",
        // 传递参数
        props:{
            path:String,
            activeColor:{
                type:String,
                default:'red'
            }
        },
        computed:{
            isActive(){
                return this.$route.path.indexOf(this.path) !==-1
            },
            activeStyle(){
                return this.isActive ? {color : this.activeColor} : {}
            }
        },
        methods: {
           itemClick(){
               this.$router.replace(this.path)
           }
        }
    }
</script>

<style scoped>
 .tab-bar-item{
    flex: 1;
    text-align: center;
    height: 49px;
    font-size: 14px;
  }

  .tab-bar-item img {
    width: 24px;
    height: 24px;
    margin-top: 3px;
    vertical-align: middle;
    margin-bottom: 2px;
  }
</style>

Cart.vue

<template>
  <h3>购物车</h3>
</template>

<script>
  export default {
    name: "Cart"
  }
</script>

<style scoped>
</style>

Category.vue

<template>
  <h3>分类</h3>
</template>

<script>
  export default {
    name: "Category"
  }
</script>

<style scoped>

</style>

Home.vue

<template>
  <h3>首页</h3>
</template>

<script>
  export default {
    name: "Home"
  }
</script>

<style scoped>

</style>

Profile.vue

<template>
  <h3>个人</h3>
</template>

<script>
  export default {
    name: "Profile"
  }
</script>

<style scoped>

</style>

index.js

import Vue from 'vue'
import VueRouter from "vue-router";

const Home = () => import('views/home/Home')
const Category = () => import('views/category/Category')
const Cart = () => import('views/cart/Cart')
const Profile = () => import('views/profile/Profile')
// 1.安装插件
Vue.use(VueRouter)
// 2.创建路由对象
const routes = [
  {
    path: '',
    redirect: '/home'
  },
  {
    path: '/home',
    component: Home
  },
  {
    path: '/category',
    component: Category
  },
  {
    path: '/cart',
    component: Cart
  },
  {
    path: '/profile',
    component: Profile
  }
]

const router =  new VueRouter({
  routes,
  // 使用history
  mode: 'history'
})

// 3.导出router
export default router

1.3 执行结果

1.4 路径简写