vue3+ts+vite使用el-breadcrumb实现面包屑组件，实现面包屑过渡动画

简介

使用 element-plus 的 el-breadcrumb 组件，实现根据页面路由动态生成面包屑导航，并实现面包屑导航的切换过渡动画

一、先看效果加粗样式

1.1 静态效果

1.2 动态效果

二、全量代码

<script lang="ts" setup>
import { ref, watch } from 'vue';
import type { RouteLocationNormalizedLoaded } from 'vue-router';
import { useRouter } from 'vue-router';
const { currentRoute } = useRouter();
const breadcrumbItems = ref();
// 监听当前路由的name变化
watch(
	() => currentRoute.value,
	(route: RouteLocationNormalizedLoaded) => {
		breadcrumbItems.value = route.matched;
	},
	{ immediate: true }
);
</script>

<template>
	<el-breadcrumb separator="/">
		<transition-group name="breadcrumb">
			<el-breadcrumb-item
				:key="item.path"
				v-for="item in breadcrumbItems"
				:to="{ path: `${item.path}` }"
				class="breadcrumb-item">
				{{ item.meta.title }}
			</el-breadcrumb-item>
		</transition-group>
	</el-breadcrumb>
</template>

<style lang="scss">
.el-breadcrumb {
	height: 48px;
	line-height: 48px;
	margin-left: 16px;
}
.el-breadcrumb__inner,
.el-breadcrumb__inner a {
	font-weight: 400 !important;
}

/* 面包屑过渡动画 */
.breadcrumb-enter-active {
	transition: all 0.4s;
}

.breadcrumb-leave-active {
	transition: all 0.3s;
}

.breadcrumb-enter-from,
.breadcrumb-leave-active {
	opacity: 0;
	transform: translateX(20px);
}

.breadcrumb-leave-active {
	position: absolute;
}
</style>