vue组件实现查看大图效果

使用的index.vue代码

<template>
    <img :src="imgUrl" @click="clickImg($event)">
    <big-img v-if="showImg" @clickit="viewImg" :imgSrc="imgSrc"></big-img>
</template>
import BigImg from '../../components/imgView.vue'
export default {
    components: {
      'big-img': BigImg
    },
    methods: {
      clickImg (e) {
        this.showImg = true
        this.imgSrc = e.currentTarget.src
      },
      viewImg () {
        this.showImg = false
      }
    }
}    

组件的代码：

<template>
    <!-- 过渡动画 -->
    <transition name="fade">
        <div class="img-view" @click="bigImg">
            <!-- 遮罩层 -->
            <div class="img-layer"></div>
            <div class="img">
                <img :src="imgSrc">
            </div>
        </div>
    </transition>
</template>
<script>
export default {
  props: ['imgSrc'],
  methods: {
    bigImg () {
        // 发送事件
      this.$emit('clickit')
    }
  }
}
</script>
<style scoped>
/*动画*/
.fade-enter-active,
.fade-leave-active {
    transition: all .2s linear;
    transform: translate3D(0, 0, 0);
}

.fade-enter,
.fade-leave-active {
    transform: translate3D(100%, 0, 0);
}

/* bigimg */

.img-view {
    position: absolute;
    top: 0px;
    width: 100%;
    height: 100%;
}

/*遮罩层样式*/
.img-view .img-layer {
    position: fixed;
    z-index: 999;
    top: 0;
    left: 0;
    background: rgba(0, 0, 0, 0.7);
    width: 100%;
    height: 100%;
    overflow: hidden;
}

/*不限制图片大小，实现居中*/
.img-view .img img {
    max-width: 100%;
    display: block;
    position: fixed;
    width: 26%;
    /*height: 80%;*/
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    margin: auto;
    z-index: 1000;
}
</style>