Vue2.5开发去哪儿网App 第五章笔记 上

1.css动画原理

Vue2.5开发去哪儿网App 第五章笔记 上

        .fade-enter{
opacity: 0;
}
.fade-enter-active{
transition: opacity 2s;
}

Vue2.5开发去哪儿网App 第五章笔记 上

.fade-leave-to{
opacity: 0;
}
.fade-leave-active{
transition: opacity 2s;
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>vue中css动画原理</title>
<script src="../../vue.js"></script>
<style>
.fade-enter{
opacity: 0;
}
.fade-enter-active{
transition: opacity 2s;
}
.fade-leave-to{
opacity: 0;
}
.fade-leave-active{
transition: opacity 2s;
}
</style>
</head>
<body>
<div id="app">
<transition name="fade">
<div v-if="show">hello world</div>
</transition>
<button @click="handleCLick">click me</button>
</div>
<script>
var vm = new Vue({
el:"#app",
data:{
show:true,
},
methods:{
handleCLick:function () {
this.show = !this.show
}
}
})
</script>
</body>
</html>

2.使用animate.css库

animate.css 提供了大量的动画效果,官网:https://daneden.github.io/animate.css/?

使用animate.css   需要在transition 标签中自定义 属性名字,例如:

enter-active-class="animated hinge"
leave-active-class="animated jello"
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>使用animate-css库</title>
<script src="../../vue.js"></script>
<link rel="stylesheet" href="../../animate.css">
</head>
<body>
<div id="app">
<!--使用animate-css 自定义名字 animated开头-->
<transition enter-active-class="animated hinge"
leave-active-class="animated jello">
<div v-if="show">hello world</div>
</transition>
<button @click="handleCLick">click me</button>
</div>
<script>
var vm = new Vue({
el:"#app",
data:{
show:true,
},
methods:{
handleCLick:function () {
this.show = !this.show
}
}
})
</script>
</body>
</html>

在第一次进入页面时,附带效果

在transition 中添加属性:

appear
appear-active-class="animated hinge"

3. 同时使用过渡和动画

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>同时使用过渡和动画</title>
<script src="../../vue.js"></script>
<link rel="stylesheet" href="../../animate.css">
<style>
.fade-enter,.fade-leave-to{
opacity: 0;
}
.fade-leave-active,
.fade-enter-active{
transition: opacity 3s;
} </style>
</head>
<body>
<div id="app">
<!--:duration 自定义时长,-->
<!--例如:设置出场入场动画时间-->
<!--:duration=“{enter:5000,leave:10000}”--> <!--appear appear-active-class:初次动画--> <!--type 确定哪种为时长为准--> <transition enter-active-class="animated hinge fade-enter-active"
leave-active-class="animated jello fade-leave-active"
appear
name="fade"
type="transition"
appear-active-class="animated hinge">
<div v-if="show">hello world</div>
</transition>
<button @click="handleCLick">click me</button>
</div>
<script>
var vm = new Vue({
el:"#app",
data:{
show:true,
},
methods:{
handleCLick:function () {
this.show = !this.show
}
}
})
</script>
</body>
</html>

4.js动画与Velocity-js结合

<!--动画钩子-->
<!--显示:-->
<!--before-enter(el)-->
<!--enter(el,done) done为回调函数-->
<!--after-enter--> <!--隐藏:-->
<!--before-leave-->
<!--after-leave-->
<!--leave-->

绑定事件:

    <transition name="fade"
@before-enter="handleBeforEnter"
@enter="handleEnter"
@after-enter="handleafterEnter"
@leave="handleLeave"
>
<div v-show="show">hello world</div>
</transition>

处理事件:

            handleCLick:function () {
this.show = !this.show
},
handleBeforEnter:function (el) {
el.style.color = 'red'
},
handleEnter:function (el,done) {
setTimeout(()=>{
// 执行结束后,执行done
el.style.color = 'yellow'
},2000)
setTimeout(()=>{
done()
},4000)
},
handleafterEnter:function (el) {
el.style.color = 'black'
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>js动画与Velocity-js结合</title>
<script src="../../vue.js"></script>
<script src="../../velocity.js"></script>
</head>
<body>
<!--动画钩子-->
<!--显示:-->
<!--before-enter(el)-->
<!--enter(el,done) done为回调函数-->
<!--after-enter--> <!--隐藏:-->
<!--before-leave-->
<!--after-leave-->
<!--leave--> <div id="app">
<transition name="fade"
@before-enter="handleBeforEnter"
@enter="handleEnter"
@after-enter="handleafterEnter"
@leave="handleLeave"
>
<div v-show="show">hello world</div>
</transition>
<button @click="handleCLick">click me</button>
</div>
<script>
var vm = new Vue({
el:"#app",
data:{
show:true,
},
methods:{
handleCLick:function () {
this.show = !this.show
},
handleBeforEnter:function (el) {
el.style.color = 'red'
},
handleEnter:function (el,done) {
setTimeout(()=>{
// 执行结束后,执行done
el.style.color = 'yellow'
},2000)
setTimeout(()=>{
done()
},4000)
},
handleafterEnter:function (el) {
el.style.color = 'black'
}
}
})
</script>
</body>
</html>

使用  Velocity.js

官网:http://velocityjs.org/

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>js动画与Velocity-js结合</title>
<script src="../../vue.js"></script>
<script src="../../velocity.js"></script>
</head>
<body>
<!--动画钩子-->
<!--显示:-->
<!--before-enter(el)-->
<!--enter(el,done) done为回调函数-->
<!--after-enter--> <!--隐藏:-->
<!--before-leave-->
<!--after-leave-->
<!--leave--> <div id="app">
<transition name="fade"
@before-enter="handleBeforEnter"
@enter="handleEnter"
@after-enter="handleafterEnter"
>
<div v-show="show">hello world</div>
</transition>
<button @click="handleCLick">click me</button>
</div>
<script>
var vm = new Vue({
el:"#app",
data:{
show:true,
},
methods:{
handleCLick:function () {
this.show = !this.show
},
handleBeforEnter:function (el) {
el.style.opacity = 0;
},
handleEnter:function (el,done) {
Velocity(el,
{opacity:1},
{ duration:1000,
complete:done
})
},
handleafterEnter:function (el) {
console.log('动画结束')
}
}
})
</script>
</body>
</html>
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