Vue实现内部组件轮播切换效果的示例代码

npm install -g vue-cli
vue init webpack slide-demo # 运行后router等都选择no

<script>
// import HelloWorld from './components/HelloWorld'
import Task1 from "./components/task-1";
import Task2 from "./components/task-2";
import Task3 from "./components/task-3";
 
export default {
  name: 'App',
  components: {
    Task1,
    Task2,
    Task3
  }
}
</script>

  data() {
    return {
      currentIndex: 0
    };
  },
  created() {
    // 请求question数据
    this.questions = [
      {index: 1, type: 1, question: ''}, /*...*/];
  },

<template>
<div id="app">
  <div class="task-container">
    <component :is="'task-' + questions[currentIndex].type" 
    </component>
  </div>
</div>
</template>

<template>
<div id="app">
  <div class="task-container">
    <component :is="'task-' + questions[currentIndex].type" 
      :question="questions[currentIndex]"></component>
    <button class="next-question" @click="nextQuestion">下一题</button>
  </div>
</div>
</template>

methods: {
  nextQuestion() {
    this.currentIndex = (this.currentIndex + 1) 
        % this.questions.length;
  }
},

<template>
<section>
  <h3>{{question.index}}. 选择题</h3>
  <div>{{content}}</div>
</section>
</template>
<script>
export default {
  props: ["question"]
}
</script>

<template>
<div id="app">
  <div class="task-container">
    <component :is="'task-' + questions[currentIndex].type" 
      ></component>
    <component :is="'task-' + questions[currentIndex + 1].type" 
      class="next-task"></component>
  </div>
</div>
</template>
 
<style>
.next-task {
  display: none;
  transform: translateX(100%);
  /* 添加一个动画，当改变transform的值时就会触发这个动画 */
  transition: transform 0.5s ease;
}
</style>

<template>
<div id="app">
  <div class="task-container">
    <component :is="'task-' + questions[evenIndex].type" 
      :class="{'next-task': nextIndex === evenIndex}"
      ref="evenTask"></component>
    <component :is="'task-' + questions[oddIndex].type" 
      :class="{'next-task': nextIndex === oddIndex}
      ref="oddTask"></component>
  </div>
</div>
</template>
 
<script>
 
export default {
  name: 'App',
  data() {
    return {
      currentIndex: 0, // 当前显示的index
      nextIndex: 1,  // 表示下一张index，值为currentIndex + 1
      evenIndex: 0,  // 偶数的index，值为currentIndex或者是currentIndex + 1
      oddIndex: 1   // 奇数的index，值同上
    };
  },
}

methods: {
  nextQuestion() {
    this.currentIndex = (this.currentIndex + 1) 
      % this.questions.length;
    this._slideToNext();
  },
  // 切到下一步的动画效果
  _slideToNext() {
 
  }
}

_slideToNext() {
  // 当前slide的类型（currentIndex已经加1了，这里要反一下）
  let currentType = this.currentIndex % 2 ? "even" : "odd",
    // 下一个slide的类型
    nextType = this.currentIndex % 2 ? "odd": "even";
  // 获取下一个slide的dom元素
  let $nextSlide = this.$refs[`${nextType}Task`].$el;
  $nextSlide.style.display = "block";
  // 把下一个slide的translate值置为0，原本是translateX(100%)
  $nextSlide.style.transform = "translateX(0)";
  // 等动画结束后更新数据
  setTimeout(() => {
    this.nextIndex = (this.currentIndex + 1) 
      % this.questions.length;
    // 原本的next是当前显示的slide
    this[`${nextType}Index`] = this.currentIndex;
    // 而原本的current slide要显示下下张的内容了
    this[`${currentType}Index`] = this.nextIndex;
  }, 500);
}

$nextSlide.style.display = "block";
// 这里使用setimeout，因为$nextTick有时候没有动画，非必现
setTimeout(() => {
  $nextSlide.style.transform = "translateX(0)";
  // ...
}, 0);

.next-task { 
  display: none;
  transform: translateX(100%);
  transition: transform 0.5s ease;
  z-index: 2;
}

methods: {
  nextQuestion() {
    this.currentIndex = (this.currentIndex + 1) 
      % this.questions.length;
    // 把currentIndex插到队首
    this.slideQueue.unshift(this.currentIndex);
    // 如果当前没有滑动，则执行滑动
    !this.sliding && this._slideToNext();
  },
}

_slideToNext() {
  // 取出下一个要处理的元素
  let currentIndex = this.slideQueue.pop();
  // 下一个slide的类型
  let nextType = currentIndex % 2 ? "odd" : "even";
  let $nextSlide = this.$refs[`${nextType}Task`].$el;
  $nextSlide.style.display = "block";
  setTimeout(() => {
    $nextSlide.style.transform = "translateX(0)";
    this.sliding = true;
    setTimeout(() => {
      this._updateData(currentIndex);
      // 如果当前还有未处理的元素，
      // 则继续处理即继续滑动
      if (this.slideQueue.length) {
        // 要等到两个component的DOM更新了
        this.$nextTick(this._slideToNext);
      } else {
        this.sliding = false;
      }
    }, 500);
  }, 0);
},

_slideToNext(fast = false) {
  let currentIndex = this.slideQueue.pop();
  // 下一个slide的类型
  let nextType = currentIndex % 2 ? "odd" : "even";
  // 获取下一个slide的dom元素
  let $nextSlide = this.$refs[`${nextType}Task`].$el;
  $nextSlide.style.display = "block";
  this.sliding = true;
  // 使用原生animate函数
  $nextSlide.animate([
    // 关键帧
    {transform: "translateX(100%)"},
    {transform: "translateX(0)"}
  ], {
    duration: fast ? 200 : 500,
    iteration: 1,
    easing: "ease"
  // 返回一个Animate对象，它有一个onfinish的回调
  }).onfinish = () => {
    // 等动画结束后更新数据
    this._updateData(currentIndex);
    if (this.slideQueue.length) {
      this.$nextTick(() => {
        this._slideToNext(true);
      });
    } else {
      this.sliding = false;
    }
  };
},