vue-router 切换页面之2

切换页面两点实现
1.如何判断切换路由时是前进还是后退

2.每次切换时向左向右切换动画如何实现
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
    }]
});

watch监视路由变化

css切换样式 -----本人的有点绚！！！可能不太适合你们的项目 自己修改吧

.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);
}