最近再写页面的时候,感觉页面之间的切换有点生硬,所以查了一下文档看见了transition这个组建,很实用,故此在这里跟大家分享一下
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1、解决这个问题的难点就是如何来确定路由是前进还是后退的问题,下面是解决的方案
a) 我们需要给各个页面定义层级,在切换路由时判断用户是进入哪一层页面,如果用户进入更高层级那么做前进动画,如果用户退到低层级那么做后退动画.
router/index.js
1 import VueRouter from 'vue-router'
2 import Home from '../components/home/home'
3 import User from '../components/user/user'
4 var router = new VueRouter({
5 routes:[{
6 name:'test',
7 path:'/',
8 meta:{index:0}, // meta对象的index用来定义当前路由的层级,由小到大,由低到高
9 component:{template:'<div>test</div>' }},
10 {
11 name:'home',
12 path:'/home',
13 meta:{index:1},
14 component:Home
15 },
16 {
17 name:'user',
18 path:'/user/:id',
19 meta:{index:2},
20 component:User
21 }]
22 }
23 });
24
监控路由跳转,判断切换页面之间的层级关系,并以此来判断路由前进或者后退.
1 <template>
2 <div id="app">
3 <transition :name="transitionName">
4 <router-view></router-view>
5 </transition>
6 </div>
7 </template>
8 <script>
9 export default {
10 name: 'App',
11 data () {
12 return {
13 transitionName:''
14 }
15 },
16 watch: {
17 // 使用watch 监听$router的变化
18 $route (to, from) {
19 // 如果to索引大于from索引,判断为前进状态,反之则为后退状态
20 if (to.meta.index > from.meta.index){
21 // 设置动画名称
22 this.transitionName = 'slide-left';
23 } else{
24 this.transitionName = 'slide-right';
25 }
26 }
27 }
28 }
29 </script>
30
编写slide-left 和 slide-right 类的动画
1 .slide-right-enter-active,
2 .slide-right-leave-active,
3 .slide-left-enter-active,
4 .slide-left-leave-active {
5 will-change: transform;
6 transition: all 500ms;
7 position: absolute;
8 }.slide-right-enter {
9 opacity: 0;
10 transform: translate3d(-100%, 0, 0);
11 }.slide-right-leave-active {
12 opacity: 0;
13 transform: translate3d(100%, 0, 0);
14 }.slide-left-enter {
15 opacity: 0;
16 transform: translate3d(100%, 0, 0);
17 }.slide-left-leave-active {
18 opacity: 0;
19 transform: translate3d(-100%, 0, 0);
20 }