Vue中切换页面时的过渡动画

定义层级

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。

import Vue from 'vue';
import Router from 'vue-router';
import Home from '@/pages/home/Home';
import List from '@/pages/list/List';
import Detail from '@/pages/detail/Detail';
 
Vue.use(Router);
 
export default new Router({
  routes: [
    {
      path: '/',
      name: 'Home',
      meta:{index:0},
      component: Home
    },
    {
      path: '/list',
      name: 'List',
      meta:{index:1},
      component: List
    },
    {
      path: '/detail',
      name: 'Detail',
      meta:{index:2},
      component: Detail
    }
  ]
});

监控路由跳转

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.

<template>
  <div id="app">
    <transition :name="transitionName">   
      <router-view></router-view>
    </transition>
  </div>
</template>
 
<script>
export default {
  name: 'App',
  data(){
      return {
          transitionName:''
      }
  },
  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.transitionName = 'slide-left';
      }else{
        this.transitionName = 'slide-right';
      }
    }
  }
}
</script>

编写样式

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);
}

至此已成功加入过渡动画效果。。。