Vue中多个元素或组件的过渡

2025-01-24 技术教程

<!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>  <style> .myfade-enter, .v-leave-to { opacity: 0; } .v-enter-active, .v-leave-active { transition: opacity 1s; } </style></head><body> <div id="root"> <transition name="myfade"> <div v-if="show">hello</div> <div v-else>bye</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 } } }); </script></body></html>

(像上面这种加了style并不会实现渐变效果，因为vue默认是会尽量复用dom，想要vue不复用dom，要给其加上不同的key值)

加上不同key值后，渐变效果有了：

<!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>  <style> .myfade-enter, .myfade-leave-to { opacity: 0; } .myfade-enter-active, .myfade-leave-active { transition: opacity 1s; } </style></head><body> <div id="root"> <transition name="myfade"> <div v-if="show" key="hello">hello</div> <div v-else key="bye">bye</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 } } }); </script></body></html>

如果想设置多个属性之间的切换效果，可以用mode（mode="in-out"：先显示要显示的再隐藏要隐藏的。mode="out-in"：和前面的相反）：

<!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>  <style> .myfade-enter, .myfade-leave-to { opacity: 0; } .myfade-enter-active, .myfade-leave-active { transition: opacity 1s; } </style></head><body> <div id="root"> <transition name="myfade" mode="out-in"> <div v-if="show" key="hello">hello</div> <div v-else key="bye">bye</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 } } }); </script></body></html>

组件动画也是可以的（不需要上面的不同值的key）：

<!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>  <style> .myfade-enter, .myfade-leave-to { opacity: 0; } .myfade-enter-active, .myfade-leave-active { transition: opacity 1s; } </style></head><body> <div id="root"> <transition name="myfade" mode="out-in"> <child1 v-if="show">hello</child1> <child2 v-else>bye</child2> </transition> <button @click="handleClick">切换</button> </div> <script type="text/javascript"> Vue.component("child1", { template: "<div>child1</div>" }); Vue.component("child2", { template: "<div>child2</div>" }); var vm = new Vue({ el: "#root", data: { show: true }, methods: { handleClick: function() { this.show = !this.show } } }); </script></body></html>

动态组件的实现方法：

<!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>  <style> .myfade-enter, .myfade-leave-to { opacity: 0; } .myfade-enter-active, .myfade-leave-active { transition: opacity 1s; } </style></head><body> <div id="root"> <transition name="myfade" mode="out-in"> //通过动态组件的方式实现： <component :is="type"></component> </transition> <button @click="handleClick">切换</button> </div> <script type="text/javascript"> Vue.component("child1", { template: "<div>child1</div>" }); Vue.component("child2", { template: "<div>child2</div>" }); var vm = new Vue({ el: "#root", data: { type: "child1" }, methods: { handleClick: function() { this.type = this.type == "child1" ? "child2" : "child1" } } }); </script></body></html>