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vue.js实现的幻灯片功能示例

程序员文章站 2022-06-29 14:26:56
本文实例讲述了vue.js实现的幻灯片功能。分享给大家供大家参考,具体如下: 1、在父组件中

本文实例讲述了vue.js实现的幻灯片功能。分享给大家供大家参考,具体如下:

1、在父组件中

<slide-show :slides="slides"></slide-show>
import slideshow from '@/components/slideshow'
export default {
 components: {
  slideshow,
 },

2、在slideshow.vue中

<template>
  <div class="slide-show" @mouseover="clearinv" @mouseout="runinv">  // 当鼠标移入的时候清除,移出的时候
    <div class="slide-img">
      <a href="slides[nowindex].href" rel="external nofollow" >
      <transition name="slide-trans">  // 使用动画
         <img v-if="isshow" :src="slides[nowindex].src">
        </transition>
        <transition name="slide-trans-old">
         <img v-if="!isshow" :src="slides[nowindex].src">
        </transition>
      </a>
    </div>
    <h2>{{ slides[nowindex].title }}</h2>
    <ul class="slide-pages">
      <li @click="goto(previndex)"><</li>
      <li v-for="(item, index) in slides" @click="goto(index)">
        <a :class="{ on: index === nowindex}">
          {{ index + 1 }}
        </a>
      </li>
      <li @click="goto(nextindex)">></li>
    </ul>
  </div>
</template>
<script>
  export default {
    props: {
      slides: {  // 获取父组件的属性
        type: array,
        default: []
      },
      inv: {
        type: number,
        default: 1000
      }
    },
    data () {
      return {
        nowindex: 0,
        isshow: true
      }
    },
    computed: {
      previndex () {  // 使用计算属性,
        if (this.nowindex === 0) {
          return this.slides.length - 1
        } else {
          return this.nowindex - 1
        }
      },
      nextindex () {
        if (this.nowindex === this.slides.length - 1) {
          return 0
        } else {
          return this.nowindex + 1
        }
      }
    },
    methods: {
      goto (index) {
        this.isshow = false,
        settimeout(() => {       // 过10毫秒后,
          this.isshow = true,
          this.nowindex = index
        }, 10)
      },
      runinv () {         // 设置定时器
        this.timer = setinterval(() => {
          this.goto(this.nextindex)
        }, this.inv)
      },
      clearinv () {
        clearinterval(this.timer)
      }
    },
    mounted () {     // 加载完后执行
      this.runinv()
    }
  }
</script>
<style scoped>
.slide-trans-enter-active {
 transition: all .5s;
}
.slide-trans-enter {
 transform: translatex(900px);
}
.slide-trans-old-leave-active {
 transition: all .5s;
 transform: translatex(-900px);
}
.slide-show {
 position: relative;
 margin: 15px 15px 15px 0;
 width: 900px;
 height: 500px;
 overflow: hidden;
}
.slide-show h2 {
 position: absolute;
 width: 100%;
 height: 100%;
 color: #fff;
 background: #000;
 opacity: .5;
 bottom: 0;
 height: 30px;
 text-align: left;
 padding-left: 15px;
}
.slide-img {
 width: 100%;
}
.slide-img img {
 width: 100%;
 position: absolute;
 top: 0;
}
.slide-pages {
 position: absolute;
 bottom: 10px;
 right: 15px;
}
.slide-pages li {
 display: inline-block;
 padding: 0 10px;
 cursor: pointer;
 color: #fff;
}
.slide-pages li .on {
 text-decoration: underline;
}
</style>

希望本文所述对大家vue.js程序设计有所帮助。