<template>
<div id="app">
<transition :name="transitionName">
<keep-alive >
<router-view v-if="$route.meta.keepAlive" class="Router"></router-view>
</keep-alive>
</transition >
<transition :name="transitionName">
<router-view v-if="!$route.meta.keepAlive" class="Router"></router-view>
</transition >
<Play></Play>
</div>
</template>
<script>import Play from ‘./components/play‘
export default {
name: ‘App‘,
data () {
return {
transitionName: ‘slide-left‘
}
},
watch: {
‘$route‘ (to, from) {
// 切换动画
let isBack = this.$router.isBack // 监听路由变化时的状态为前进还是后退
if (isBack === true) {
this.transitionName = ‘slide-right‘
// from.meta.keepAlive = false
// to.meta.keepAlive = true
} else {
// from.meta.keepAlive = true
// to.meta.keepAlive = false
// this.transitionName = ‘slide-left‘
if (this.$route.path.split(‘/‘).length < 3) {
this.transitionName = ‘slide-fade‘
} else {
this.transitionName = ‘slide-left‘
}
}
this.$router.isBack = false
}
},
components: {
Play
}
}
</script>

<style>
.Router {
font-family: Roboto, Lato, sans-serif;
position: absolute;
width: 100%;
height: 100%;
padding-bottom: 60px;
transition: all .377s ease;
box-sizing: border-box;
overflow: auto;
}
.slide-left-enter,
.slide-right-leave-active {
opacity: 0;
-webkit-transform: translate(100%, 0);
transform: translate(100%, 0);
}

.slide-left-leave-active,
.slide-right-enter {
opacity: 0;
-webkit-transform: translate(-100%, 0);
transform: translate(-100% 0);
}
.ovf {
overflow: hidden;
}
.center {
width: 95%;
margin: 0 auto;
overflow-y: hidden;
}
li {
list-style: none;
}
</style>

{
path: ‘/playListDetail/:id‘,
name: ‘playListDetail‘,
component: pather => require([‘../components/playListDetail.vue‘], pather),
meta: {
title: ‘歌单详情‘,
keepAlive: true,
isBack: false
}

back () {
this.$router.go(-1)
this.$router.isBack = true
}