vue实现过渡效果
Vue 过渡效果实现方法
Vue 提供了内置的 <transition> 和 <transition-group> 组件，用于在元素或组件进入/离开 DOM 时应用过渡效果。以下是具体实现方式：
使用 <transition> 组件
<transition name="fade">
<div v-if="show">过渡内容</div>
</transition>.fade-enter-active, .fade-leave-active {
transition: opacity 0.5s;
}
.fade-enter, .fade-leave-to {
opacity: 0;
}使用 JavaScript 钩子
<transition
@before-enter="beforeEnter"
@enter="enter"
@after-enter="afterEnter"
@enter-cancelled="enterCancelled"
@before-leave="beforeLeave"
@leave="leave"
@after-leave="afterLeave"
@leave-cancelled="leaveCancelled"
>
<div v-if="show">过渡内容</div>
</transition>methods: {
beforeEnter(el) {
el.style.opacity = 0
},
enter(el, done) {
anime({
targets: el,
opacity: 1,
duration: 500,
complete: done
})
},
leave(el, done) {
anime({
targets: el,
opacity: 0,
duration: 500,
complete: done
})
}
}列表过渡使用 <transition-group>
<transition-group name="list" tag="ul">
<li v-for="item in items" :key="item.id">
{{ item.text }}
</li>
</transition-group>.list-enter-active, .list-leave-active {
transition: all 1s;
}
.list-enter, .list-leave-to {
opacity: 0;
transform: translateY(30px);
}自定义过渡类名
<transition
enter-active-class="animate__animated animate__bounceIn"
leave-active-class="animate__animated animate__bounceOut"
>
<div v-if="show">使用 Animate.css</div>
</transition>初始渲染过渡
<transition
appear
appear-class="custom-appear-class"
appear-to-class="custom-appear-to-class"
appear-active-class="custom-appear-active-class"
>
<div>初始渲染过渡</div>
</transition>过渡模式
<transition mode="out-in">
<button :key="isEditing" @click="isEditing = !isEditing">
{{ isEditing ? '保存' : '编辑' }}
</button>
</transition>以上方法可以组合使用，根据具体需求选择最合适的实现方式。Vue 的过渡系统非常灵活，可以结合 CSS 动画库如 Animate.css 或 JavaScript 动画库如 GSAP 实现更复杂的效果。
