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2022/05/26: 过渡与动画

作者:互联网

在需要添加动画的标签外面用 transition 包裹起来,通过VUE封装的过渡与动画(在插入、更新或者移除DOM的时候给元素添加样式类名)。

Transition Diagram

一共有6个class切换

单组件过渡

需要注意的点是transition标签没有name属性那么,可以直接在style中用 v-enter-active等默认样式,如果有name属性,需要用 name的值对于的样式。transition中有appear标签说明DOM节点挂载的时候也会有对应的动画。

<template>
  <div>
      <button @click="isShow=!isShow">隐藏/显示</button>
      <transition name="fade">
        <h1 v-show="isShow">SingleAnimation</h1>
      </transition>
  </div>
</template>

<script>
export default {
    name:"SingleComponent",
    data() {
        return {
            isShow:true,
        }
    },
    methods:{
    }
}
</script>

<style>
    /* name是fade, 所以需要用fade-enter-active 
       如果是没有name标签,可以用v-enter-active默认样式
    */
    .fade-enter-active, .fade-leave-active{
        transition: opacity 0.5s
    }
    .fade-enter, .fade-leave-to {
        opacity: 0;
    }
</style>

效果演示:

SingleAnimation

CSS过渡

利用CSS来实现过渡状态

<template>
  <div>
    <button @click="isShow=!isShow">隐藏/显示</button>
    <transition name="slide">
        <h1 v-show="isShow">CssTransition</h1>
    </transition>
  </div>
</template>

<script>
export default {
    name:"CssTransition",
    data() {
        return {
            isShow:true
        }
    }
}
</script>

<style>
    .slide-enter-active {
        transition: all 1s ease;
    }
    .slide-leave-active {
        transition: all .8s cubic-bezier(1.0, 0.5, 0.8, 1.0);
    }
    .slide-enter, .slide-leave-to {
        transform: translateX(10px);
        opacity: 0;
    }
</style>

效果演示

CssTransition

CSS动画

利用CSS动画实现DOM节点出现消失时的动画

<template>
    <div>
    <button @click="isShow=!isShow">隐藏/显示</button>
    <transition name="bounce">
        <p v-show="isShow">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Mauris facilisis enim libero, at lacinia diam fermentum id. Pellentesque habitant morbi tristique senectus et netus.</p>
    </transition>
  </div>
</template>

<script>
export default {
    name:"CssAnimation",
    data() {
        return {
            isShow:true
        }
    },
}
</script>

<style>
    .bounce-enter-active {
        animation: bounce-in .5s;
    }
    .bounce-leave-active {
        animation: bounce-in .5s reverse;
    }
    @keyframes bounce-in {
        0% {
            transform: scale(0);
        }
        50% {
            transform: scale(1.5);
        }
        100% {
            transform: scale(1);
        }
    }
</style>

效果演示:

CssAnimation

自定义过渡类名(第三方动画库)

可以利用一下attribute来自定义过渡类名实现过渡动画

引用第三方库Animate.css ,引用第三方库可以参考文档内容

VUE中使用Animate.css

动画可以在Animate.css上提前预览后复制类名

image-20220525083948867

实际代码

<template>
    <div>
    <button @click="isShow=!isShow">隐藏/显示</button>
    <transition name="animate__animated animate__bounce"
        enter-active-class="animate__bounceInDown"
        leave-active-class="animate__bounceOutDown">
        <h1 v-show="isShow">CustomAnimation</h1>
    </transition>
  </div>
</template>

<script>
import 'animate.css'

export default {
    name:"CssAnimation",
    data() {
        return {
            isShow:true
        }
    },
}
</script>

<style>
</style>

样式效果

CustomAnimation

多组件动画

当transition中有多个DOM元素的时候,只显示一个标签

<template>
    <div>
    <button @click="isShow1=!isShow1">隐藏/显示1</button>
    <button @click="isShow2=!isShow2">隐藏/显示2</button>
    <transition name="animate__animated animate__bounce"         
        enter-active-class="animate__bounceInDown"
        leave-active-class="animate__bounceOutDown">
        <p v-show="isShow1" key="001">GroupTransition1</p>
        <p v-show="isShow2" key="002">GroupTransition2</p>
    </transition>
  </div>
</template>

<script>
export default {
    name:"GroupTransition",
    data() {
        return {
            isShow1:true,
            isShow2:true,
        }
    },
}
</script>

<style>
    .bounce-enter-active {
        animation: bounce-in .5s;
    }
    .bounce-leave-active {
        animation: bounce-in .5s reverse;
    }
    @keyframes bounce-in {
        0% {
            transform: scale(0);
        }
        50% {
            transform: scale(1.5);
        }
        100% {
            transform: scale(1);
        }
    }
</style>

只显示第一个DOM元素

image-20220525084254306

如果需要在transition内使用多个DOM节点,可以通过tansition-group来实现

<template>
    <div>
    <button @click="isShow1=!isShow1">隐藏/显示1</button>
    <button @click="isShow2=!isShow2">隐藏/显示2</button>
    <transition-group appear 
        name="animate__animated animate__bounce"         
        enter-active-class="animate__bounceInDown"
        leave-active-class="animate__bounceOutDown">
        <h1 v-show="isShow1" key="001">GroupTransition1</h1>
        <h1 v-show="isShow2" key="002">GroupTransition2</h1>
    </transition-group>
  </div>
</template>

<script>
import 'animate.css'

export default {
    name:"GroupTransition",
    data() {
        return {
            isShow1:true,
            isShow2:true,
        }
    },
}
</script>

<style>

</style>

演示效果:

GroupTransition

标签:动画,26,name,05,bounce,leave,2022,enter,active
来源: https://www.cnblogs.com/jiangblog/p/16311611.html