使用 vue-router 切换页面时怎么设置过渡动画

实现难点 如何判断切换路由时是前进还是后退 每次切换时向左向右切换动画如何实现 解决方案 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 import VueRouter from 'vue-router' import Home from '../components/home/home' import User from '../components/user/user' var router = new VueRouter({ routes:[{ name:'test', path:'/', 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 component:{ template:'
test
' } },{ name:'home', path:'/home', meta:{ index:1 }, component:Home },{ name:'user', path:'/user/:id', meta:{ index:2 }, component:User }] }); 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. ![](/uploads/article/2019/09/21/20190921150403_7214.png) export default { name: 'App', data(){ return { transition:'' } }, watch: {//使用watch 监听$router的变化 $route(to, from) { //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 if(to.meta.index > from.meta.index){ //设置动画名称 this.transition = 'slide-left'; }else{ this.transition = 'slide-right'; } } } } 编写slide-left 和 slide-right 类的动画 .slide-right-enter-active, .slide-right-leave-active, .slide-left-enter-active, .slide-left-leave-active { will-change: transform; transition: all 500ms; position: absolute; } .slide-right-enter { opacity: 0; transform: translate3d(-100%, 0, 0); } .slide-right-leave-active { opacity: 0; transform: translate3d(100%, 0, 0); } .slide-left-enter { opacity: 0; transform: translate3d(100%, 0, 0); } .slide-left-leave-active { opacity: 0; transform: translate3d(-100%, 0, 0); }
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