vue3 路由增加过渡动画实现

废话不多说 实现过程在下方：

1. 在路由文件下 router/index.js

每个路由增加位置坐标 index 例如

{
   path: "/",
   name: "Home",
   component: () => import("@/views/home/index.vue"),
   meta: {index: 1},
},
{
   path: "/info",
   name: "Info",
   component: () => import("@/views/info/index.vue"),
   meta: {index: 2},
},
...

 

2. 在App.vue文件下增加如下code：

<template>

　　<router-view v-slot="{ Component }">

　　　　<transition :name="state.transitionName" mode="out-in">

　　　　　　<keep-alive>

　　　　　　　　<div :key="route.name">

　　　　　　　　　　<component :is="Component"></component>

　　　　　　　　</div>

　　　　　　</keep-alive>

　　　　</transition>

　　</router-view>

</template>

<script setup>
import { useRouter } from 'vue-router'
const router = useRouter()
const state = reactive({
  transitionName: 'slide-left'
})
router.beforeEach((to, from) => {
  if (to.meta.index > from.meta.index) {
    state.transitionName = 'slide-left' // 向左滑动
  } else if (to.meta.index < from.meta.index) {
    // 由次级到主级
    state.transitionName = 'slide-right'
  } else {
    state.transitionName = ''   // 同级无过渡效果
  }
})
</script>

<style lang="less">
.router-view{
    width: 100%;
    height: auto;
    position: absolute;
    top: 0;
    bottom: 0;
    margin: 0 auto;
    -webkit-overflow-scrolling: touch;
}

.slide-right-enter-active,
.slide-right-leave-active,
.slide-left-enter-active,
.slide-left-leave-active{
    height: 100%;
    will-change: transform;
    transition: all 500ms;
    position: absolute;
    backface-visibility: hidden;
}
.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);
}
</style>

结束