Vue.js's css implements excessive animation

This time I will bring you the over-implementation of css in Vue.jsanimation, the over-animation of css in Vue.jsWhat are the precautions, the following is a practical case, let's come together take a look.

transition animation

<template>
  <div>
    <button @click="show = !show">Toggle</button>
    <div class="ab">
      <transition name="adc">
        <p v-show="show">I am show</p>
      </transition>
    </div>
  </div></template><script>
  export default {
    data () {      return {        show: true
      }
    }
  }</script><style>
 .adc-enter-active, .adc-leave-active {   transition: all 2s ease-out;
 }  .adc-enter, .adc-leave-to {    opacity: 0;
  }</style>

css-transform animation

<template>  <div>    <button @click="show = !show">Toggle</button>    <div class="ab">      <transition name="my-trans">        <p v-show="show">I am show</p>      </transition>    </div>  </div></template><script>  export default {    data () {      return {        show: true      }    }  }</script><style>  .my-trans-enter-active, .my-trans-leave-active {    transition: all .5s ease-out;  }  .my-trans-enter {    transform: translateY(-100px);    opacity: 0;  }  .my-trans-leave-active {    transform: translateY(100px);  }</style>

css-transform animation

Dynamic component

<template>
  <div>
    <button @click="onToggle">Toggle</button>
    <div class="ab">
      <transition name="fade">
        //动态组件        <div :is="componentView"></div>
      </transition>
    </div>
  </div></template><script>
  import comA from &#39;./components/a.vue&#39;
  import comB from &#39;./components/b.vue&#39;
  export default {    components: {comA, comB},
    data () {      return {        componentView: &#39;com-a&#39;
      }
    },    methods: {
      onToggle () {        if (this.componentView === &#39;com-a&#39;) {          this.componentView = &#39;com-b&#39;
        } else {          this.componentView = &#39;com-a&#39;
        }
      }
    }
  }</script><style>
 .fade-enter-active, .fade-leave-active {   transition: all 2s ease-out;
 }  .fade-enter, .fade-leave-to {    opacity: 0;
  }</style>

Dynamic component, mode is the default

The entry and exit transitions that take effect at the same time cannot meet all requirements, so Vue provides a transition mode
in-out: New elements transition first, and then the current element transitions leave.
out-in: The current element transitions first, and then the new element transitions in.
The default is in-out

The above animation, if set mode="out-in"

<transition name="fade" mode="out-in">   <div :is="componentView"></div></transition>
mode="out-in"

Note: If the two tag names are the same, the animation will not be executed , if you want to execute animation, you need to set different keys for the tags to distinguish them

<template>
  <div>
    <button @click="show = !show">Toggle</button>
    <div class="ab">
      <transition name="fade" mode="out-in">
        <p v-if="show" >i am show</p>
        <p v-else >not in show</p>
      </transition>
    </div>
  </div></template>

Two animations with the same tag name have not set different keys

If different keys are set, then Animation can be executed

<template>
  <div>
    <button @click="show = !show">Toggle</button>
    <div class="ab">
      <transition name="fade" mode="out-in">
        //设置不同的key        <p v-if="show" key="1">i am show</p>
        <p v-else key="2">not in show</p>
      </transition>
    </div>
  </div></template>

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the PHP Chinese website!

Recommended reading:

Computed properties and data monitoring of Vue.js

Vue.js events Binding - built-in event binding, custom event binding

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