Vue transitions are not working for router-link and $router.push-CodePudding

I've the following App.vue file:

<script setup>
import { RouterView } from "vue-router";
</script>

<template>
  <RouterView v-slot="{ Component }">
    <transition :name="fade" mode="out-in">
      <component :is="Component" />
    </transition>
  </RouterView>
</template>

And the following router file:

import { createRouter, createWebHistory } from "vue-router";

const router = createRouter({
  history: createWebHistory(import.meta.env.BASE_URL),
  routes: [
    {
      path: "/",
      name: "signin",
      component: () => import("../views/signin.vue"),
    },
    {
      path: "/dashboard",
      name: "dashboard",
      component: () => import("../views/dashboard.vue"),
    },
  ],
});

export default router;

When I run my application and click any link, no transition is happening, no matter if it use $router.push("/dashboard"); or router-link(to="/dashboard" active-). I've already checked out many other questions and tutorials but unfortunately it's still not working. Any idea why no transition happens?

CodePudding user response：

There are a couple of things that you can change in your code.

First, you don't need to declare an import for RouterView as it is globally registered. As long as vue-router is installed in your project, you can safely use RouterView or router-view directly on your template.

Second, you need to change your name prop to a static prop. Writing :name="fade" means you are passing the value of the variable fade to name. Based on your code, I'm assuming fade is not a variable but a string which means you need to change your prop to name="fade". Read more about static and dynamic props.

Lastly, transitions require the use of CSS. Since you're declaring a named transition, you need to add the following CSS:

.fade-enter-active,
.fade-leave-active {
  transition: opacity 0.5s ease;
}

.fade-enter-from,
.fade-leave-to {
  opacity: 0;
}

Notice the use of fade in the CSS. That is the value provided in the name prop which means if you have for example:

<transition name="slide-in" mode="out-in">

then your CSS should have .slide-in-enter-active, .slide-in-enter-leave, and so on.

CodePudding user response：

Change:

<component :is="Component" />

<component :key="$route.path" :is="Component"/>

The transition is not detecting the views changing, so you need to provide something that'll change for it. Also, remember that fade has to be an actual animation in your CSS, e.g.:

    .fade-enter-active
    {
        animation: fade 0.25s;
    }

    .fade-leave-active
    {
        animation: fade 0.25s reverse;
    }

    @keyframes fade 
    {
        from
        {
            opacity: 0%;
        }

        to
        {
            opacity: 100%;
        }
    }