transition   vue过渡组件

标签自带类名

触发时机	默认类名	自定义类名 <transition name="xxx">	自定义行内式类名 方便结合第三方库	transition 钩子 接收参数el enter 和leave 第二个参数 done 可以 决定  after-enter  after-leave 的 周期内的执行时机
v-if	进入	进入	进入	进入
v-show	v-enter-from v-enter-active v-enter-to	xxx-enter-from xxx-enter-active xxx-enter-to	enter-from-class enter-active-class enter-to-class	@before-enter="beforeEnter" @enter="enter" @after-enter="afterEnter" @enter-cancelled="enterCancelled"
<component :is="xxx" >	离开	离开	离开	离开
标签元素	v-leave-from v-leave-active v-leave-to	xxx-leave-from xxx-leave-active xxx-leave-to	leave-class leave-active-class leave-to-class	@before-leave="beforeLeave" @leave="leave" @after-leave="afterLeave" @leave-cancelled="leaveCancelled"

在 xxx-enter-active    xxx-leave-active  时可以做 一些过度属性

.slide-leave-from {
  width: 200px;
  height: 200px;
}
.slide-leave-active {
  transition: all 1s;
  animation: bounce-in 0.5s reverse;
}
.slide-leave-to {
  width: 0;
  height: 0;
}

 使用自定义类名后  enter-from-class="from"  enter-to-class = "to"

.from {
  width: 0;
  height: 0;
}
.slide-enter-active {
  transition: all 1s;
  animation: bounce-in 0.5s;
}
.to {
  width: 200px;
  height: 200px;
}

代码

<template>
  <div>
    <el-button @click="boo = !boo">toggle</el-button>
     <Transition 
     
     v-for="(item,index) in data" :key="index"
     :enter-active-class="item.Inclass"
     :leave-active-class="item.Outclass">
       <h1 v-if="boo" >{{ item.des }}</h1>
     </Transition>
  </div>
</template>
<script lang="ts" setup>
import { ref,onMounted,reactive } from "vue";
import "animate.css";
type data = {
    des:string,
    Inclass:string,
    Outclass:string
}
let data = reactive<data[]>([
    {
        des:'我是第一条数据',
        Inclass:'animate__animated animate__fadeInLeftBig',
        Outclass:'animate__animated animate__fadeOutLeftBig'
    },
    {
        des:'我是第二条数据',
        Inclass:'animate__animated animate__fadeInLeft',
        Outclass:'animate__animated animate__fadeOutLeft'
    },
    {
        des:'我是第三条数据',
        Inclass:'animate__animated animate__fadeInUpBig',
        Outclass:'animate__animated animate__fadeOutUpBig'
    },
    {
        des:'我是第四条数据',
        Inclass:'animate__animated animate__flipInX',
        Outclass:'animate__animated animate__flipOutX'
    },
    {
        des:'我是第五条数据',
        Inclass:'animate__animated animate__zoomInDown',
        Outclass:'animate__animated animate__zoomOutDown'
    },
    {
        des:'我是第六条数据',
        Inclass:'animate__animated animate__backInLeft',
        Outclass:'animate__animated animate__backOutLeft'
    },

])
let boo = ref<boolean>(false);
</script>
<style scoped lang="scss">
.box {
  width: 200px;
  height: 200px;
  background-color: #ccc;
}
.from {
  width: 0;
  height: 0;
}
.slide-enter-active {
  transition: all 1s;
  animation: bounce-in 0.5s;
}
.to {
  width: 200px;
  height: 200px;
}

/**
  离开
   */
.slide-leave-from {
  width: 200px;
  height: 200px;
}
.slide-leave-active {
  transition: all 1s;
  animation: bounce-in 0.5s reverse;
}
.slide-leave-to {
  width: 0;
  height: 0;
}

@keyframes bounce-in {
  0% {
    transform: scale(0);
  }
  50% {
    transform: scale(1.5);
  }
  100% {
    transform: scale(1);
  }
}
.font{
    margin: auto;
    width: 300px;
}
</style>

使用动画库 animate.css

animate.css 官网

npm install animate.css --save
import "animate.css";  //组件中引入

使用时 加固定前缀 animate__animated  后面的类名按官网需求添加

<h1 class="animate__animated animate__bounce">An animated element</h1>

效果

 

学习 gsap 动画库 ☆ ☆ ☆ ☆ ☆  有助于学习 three.js 

greensock 绿袜官网

 

 结合  transition 生命周期 和 gsap

let beforeEnter = (el) => {
  gsap.set(el,{
   background:'#ccc'
  })
};
let enter = (el,done) => {
    gsap.set(el,{
        backgroundColor:'pink'
    })
};
let afterEnter = () => {
  console.log(555);
};
let leave = (el,done)=>{
    gsap.set(el,{
        backgroundColor:'#ccc'
    })

}


 <Transition
      v-on:before-enter="beforeEnter"
      v-on:enter="enter"
      v-on:after-enter="afterEnter"
      v-for="(item, index) in data"
      :key="index"
      :enter-active-class="item.Inclass"
      :leave-active-class="item.Outclass"
      @leave="leave"
    >