Vue的Js动画与Velocity.js的结合

2025-01-09 技术教程

@before-enter，在隐藏后，点击让它显示的时候，显示之前会触发。@enter不同，是在动画执行的过程中触发。done触发完成之后就是@after-enter。这些是通过js钩子来实现，也就是js来实现的：

<!DOCTYPE html><html><head> <title></title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link rel="stylesheet" type="text/css" href="./animate.css"> <script src="./vue.js"></script> </head><body> <div id="root"> //自定义class名字： <transition name="fade" @before-enter="handleBeforeEnter" @enter="handleEnter" @after-enter="handleAfterEnter" > <div v-show="show">hello</div> </transition> <button @click="handleClick">切换</button> </div> <script type="text/javascript"> var vm = new Vue({ el: "#root", data: { show: true }, methods: { handleClick: function() { this.show = !this.show }, //el指的是动画包裹的标签 handleBeforeEnter: function(el) { //console.log("handleBeforeEnter") //在标签从隐藏点击显示的时候，变成了红色 el.style.color = "red" }, //接收两个回调函数，el同上，done handleEnter: function(el, done) { //之前显示是红色，两秒后变成绿色 setTimeout(()=>{ el.style.color = "green" }, 2000) setTimeout(()=>{ //但4秒才告诉vue结束(也就是2秒后变绿，又4-2秒后变黑) done() //这个done很重要，执行完之后要告诉vue，已经执行完 }, 4000) }, handleAfterEnter: function(el) { el.style.color = "black" } } }); </script></body></html>

当然，除了入场动画，还有出场动画：

<!DOCTYPE html><html><head> <title></title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link rel="stylesheet" type="text/css" href="./animate.css"> <script src="./vue.js"></script> </head><body> <div id="root"> //自定义class名字： <transition name="fade" @before-leave="handleBeforeLeave" @leave="handleLeave" @after-leave="handleAfterLeave" > <div v-show="show">hello</div> </transition> <button @click="handleClick">切换</button> </div> <script type="text/javascript"> var vm = new Vue({ el: "#root", data: { show: true }, methods: { handleClick: function() { this.show = !this.show }, //el指的是动画包裹的标签 handleBeforeLeave: function(el) { //console.log("handleBeforeLeave") //在标签从隐藏点击显示的时候，变成了红色 el.style.color = "red" }, //接收两个回调函数，el同上，done handleLeave: function(el, done) { //之前显示是红色，两秒后变成绿色 setTimeout(()=>{ el.style.color = "green" }, 2000) setTimeout(()=>{ //但4秒才告诉vue结束(也就是2秒后变绿，又4-2秒后变黑) done() //这个done很重要，执行完之后要告诉vue，已经执行完 }, 4000) }, handleAfterLeave: function(el) { setTimeout(()=>{ el.style.color = "black" }, 2000) } } }); </script></body></html>

使用velocity。下载地址：http://velocityjs.org/

<!DOCTYPE html><html><head> <title></title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link rel="stylesheet" type="text/css" href="./animate.css"> <script src="./vue.js"></script> <script src="./velocity.js"></script> </head><body> <div id="root"> //自定义class名字： <transition name="fade" @before-enter="handleBeforeEnter" @enter="handleEnter" @after-enter="handleAfterEnter" > <div v-show="show">hello</div> </transition> <button @click="handleClick">切换</button> </div> <script type="text/javascript"> var vm = new Vue({ el: "#root", data: { show: true }, methods: { handleClick: function() { this.show = !this.show }, //el指的是动画包裹的标签 handleBeforeEnter: function(el) { el.style.opacity = 0; }, //接收两个回调函数，el同上，done handleEnter: function(el, done) { //注意，要加上complete: done告诉vue结束 Velocity(el, {opacity:1}, {duration: 1000, complete: done}) }, handleAfterEnter: function(el) { alert("动画结束") } } }); </script></body></html>