项目场景
用最新的技术栈Vue+Tsx给后台管理系统路由加动画时，语法上与模板语法有些许不同，记录下自己的踩坑记录
样式文件
新建文件transition.scss，这里用的是若依框架人家写好的样式，写好之后在全局引入该样式文件
// global transition css
.fade-enter-active,
.fade-leave-active {
transition: opacity 0.28s;
}
.fade-enter,
.fade-leave-active {
opacity: 0;
}
.fade-transform-leave-active,
.fade-transform-enter-active {
transition: all 0.5s;
}
.fade-transform-enter {
opacity: 0;
transform: translateX(-30px);
}
.fade-transform-leave-to {
opacity: 0;
transform: translateX(30px);
}
.breadcrumb-enter-active,
.breadcrumb-leave-active {
transition: all 0.5s;
}
.breadcrumb-enter,
.breadcrumb-leave-active {
opacity: 0;
transform: translateX(20px);
}
.breadcrumb-move {
transition: all 0.5s;
}
.breadcrumb-leave-active {
position: absolute;
}
步骤
首先是第一步尝试给路由加过渡动画，代码如下
<div style={{ flex: "1", paddingTop: "12px", height: 0 }}>
<Transition name="fade-transform" mode="out-in">
<RouterView v-slots={{
default: ({ Component: RouteComponent }: { Component: any }) => {
return <RouteComponent />
}
}}
></RouterView>
</Transition>
</div>这时候路由完全没动画并且报了一个警告
Component inside <Transition> renders non-element root node that cannot be animated.
意思是在Transition动画节点下只能有一个根节点，这时候再尝试把RouteComponent外面套一层div
<div style={{ flex: "1", paddingTop: "12px", height: 0 }}>
<Transition name="fade-transform" mode="out-in">
<RouterView v-slots={{
default: ({ Component: RouteComponent }: { Component: any }) => {
return <div><RouteComponent /></div>
}
}}
></RouterView>
</Transition>
</div>这时候还是没有切换动画的，新警告来了
<router-view> can no longer be used directly inside <transition> or <keep-alive>.
Use slot props instead:
<router-view v-slot="{ Component }">
<transition>
<component :is="Component" />
</transition>
</router-view>意思是说router-view不能放在transition下，好的那我们换一种写法试试
<div style={{ flex: "1", paddingTop: "12px", height: 0 }}>
<RouterView v-slots={{
default: ({ Component: RouteComponent }: { Component: any }) => {
return <Transition name="fade-transform" mode="out-in">
<div> <RouteComponent /></div>
</Transition>
}
}}
></RouterView>
</div>这时候就很完美，没警告了。但是？？王德发？？切换动效在哪里？？我陷入了沉思，官方文档里给的示例是切换显示隐藏的时候用v-if，也就是隐藏的时候dom节点被销毁了，是不是我这个没重新渲染呢？？这时候给div加上一个动态的key让它重新渲染就好了
import {useRoute } from 'vue-router';
const route = useRoute()<div style={{ flex: "1", paddingTop: "12px", height: 0 }}>
<RouterView v-slots={{
default: ({ Component: RouteComponent }: { Component: any }) => {
return <Transition name="fade-transform" mode="out-in">
<div key={route.path}> <RouteComponent /></div>
</Transition>
}
}}
></RouterView>
</div>这时候就好了，虽然是可以了，但是这个any类型让我很是不舒服，本着一定要写代码优雅的原则，最后改动一下
最终代码
<div style={{ flex: "1", paddingTop: "12px", height: 0 }}>
<RouterView v-slots={{
default: ({ Component }: { Component: VNode }) => {
return <Transition name="fade-transform" mode="out-in">
<div key={route.path} style={{ height: "100%" }}>
{createVNode(Component)}
</div>
</Transition>
}
}}/>
</div>这样看着就舒服了
总结
最后想说，TSX真香！走新技术的路上难免会遇到很多坑，但解决了真的很舒服
以上为个人经验，希望能给大家一个参考，也希望大家多多支持编程网。
