最近公司項目加了個頁面，其中要求是這樣的，點擊對應列表，展開和收起，

其實就是顯示和隱藏內容部分；說來慚愧，我花了半天時間才搞出來（自黑一下~），

，，接下來分享給大家，先上效果圖：

.vue頁面：

<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筆<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++){	//這裏取值自後臺返回的長度,設置頁面渲染完成後是否展開，此處不展開
		    document.getElementsByClassName(‘contant‘)[i].style.height = ‘0px‘;
		}
	},
	components:{
	},
	methods:{
		showHide(index){    //點擊展開收起
		    let contant = document.getElementsByClassName(‘contant‘)[index];    //這裏我們通過參數index來讓瀏覽器判斷你點擊的是哪一個列表    
		    let height = contant.getBoundingClientRect().height;	//獲取頁面元素的當前高度
		    document.getElementsByTagName(‘i‘)[index].style.transform = !!height?‘rotateX(0deg)‘:‘rotateX(180deg)‘;
		    if (!!height) {
			contant.style.height = height + ‘px‘;
			let f = document.body.offsetHeight;	//強制相應dom重繪，使最新的樣式得到應用
			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;	/* 這個是重點 */
		.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;	/* 這個也是重點 */
			ul li{padding: 0 24px;height: 142px;display: flex;align-items: center;}
			ul li:not(:last-child){border-bottom: 1px solid #f6f6f6;/*px*/}
		}
	}
}
</style>

版權聲明：本文為博主原創文章，轉載需註明出處。https://www.cnblogs.com/silent007/p/9188486.html

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vue.js 實現點擊展開收起動畫