vue.js 实现点击展开收起动画

    最近公司项目加了个页面,其中要求是这样的,点击对应列表,展开和收起,

其实就是显示和隐藏内容部分;说来惭愧,我花了半天时间才搞出来(自黑一下~),

,,接下来分享给大家,先上效果图:

.vue页面:

<template>
	<div class="dealRecord-wrap">
		<div class="title-contant" v-for="(item,index) in items " >
			<div class="title" @click="showHide(index)">
				<h3>2018年0{{index+6}}月</h3>
				<div class="number">800笔<i></i></div>
			</div>
			<div class="contant">
				<ul>
					<li v-for="i in item.allNumber">
						{{index+6}}
					</li>
				</ul>
			</div>
		</div>
	</div>
</template>

<script>
export default{
	data(){
		return{
			items:[
				{v:'qqq',allNumber:1},
				{v:'aaa',allNumber:2},
				{v:'qqq',allNumber:3},
			],

		}
	},
	created(){
		document.body.style.backgroundColor = '#f6f6f6';
		
	},
	mounted(){
		for(var i=0;i<3;i++){	//这里取值自后台返回的长度,设置页面渲染完成后是否展开,此处不展开
		    document.getElementsByClassName('contant')[i].style.height = '0px';
		}
	},
	components:{
	},
	methods:{
		showHide(index){    //点击展开收起
		    let contant = document.getElementsByClassName('contant')[index];    //这里我们通过参数index来让浏览器判断你点击的是哪一个列表    
		    let height = contant.getBoundingClientRect().height;	//获取页面元素的当前高度
		    document.getElementsByTagName('i')[index].style.transform = !!height?'rotateX(0deg)':'rotateX(180deg)';
		    if (!!height) {
			contant.style.height = height + 'px';
			let f = document.body.offsetHeight;	//强制相应dom重绘,使最新的样式得到应用
			contant.style.height = '0px';
		    } else {
			contant.style.height = 'auto';
			height = contant.getBoundingClientRect().height;
			contant.style.height = '0';
			let f = document.body.offsetHeight;
			contant.style.height = height + 'px';
		    }
		}
	},
	beforeDestroy(){
		document.body.style.backgroundColor = '#fff';
	}
}
</script>
<style type="text/scss" lang="scss" scoped>
.dealRecord-wrap{margin-bottom: 100px;
	.title-contant{overflow: hidden;	/* 这个是重点 */
		.title{height: 84px;padding: 0 24px;border-bottom: 1px solid #eaeaea;/*px*/
			h3{height: 84px;font-size: 28px;color: #333;display: flex;align-items: center;float: left;;margin-left: 10px;}
			.number{height: 84px;font-size: 24px;color: #666;display: flex;align-items: center;float: right;}
			.number i{display: inline-block;width: 23px;height: 13px;background: url('../../assets/images/[email protected]');background-repeat: no-repeat;background-size: 23px 13px;background-position: right 6px center;padding-right: 35px;display: flex;align-items: center; float: right;transform:rotateX(0deg);}
		}
		.contant{background: #fff;transition: height 1s;	/* 这个也是重点 */
			ul li{padding: 0 24px;height: 142px;display: flex;align-items: center;}
			ul li:not(:last-child){border-bottom: 1px solid #f6f6f6;/*px*/}
		}
	}
}
</style>

版权声明:本文为博主原创文章,转载需注明出处。https://www.cnblogs.com/silent007/p/9188486.html

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转载自www.cnblogs.com/silent007/p/9188486.html