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最近开发小程序遇到须要通过文本长度管制 tooltip 展现
css 设置文字在元素中不够宽度显示为…
并且同时能够展现气泡 (前提是气泡是自定义的款式),
文字够宽度,则不显示气泡。并且追随手机屏幕宽度变动。
小程序如何监听和实现呢?
效果图展现
解决办法:
- 溢出暗藏 css 款式
.hide {
word-break: break-word; // 换行模式
overflow: hidden;
text-overflow: ellipsis; // 修剪文字,超过 2 行显示省略号
display: -webkit-box;
-webkit-line-clamp: 2; // 此处为下限行数
-webkit-box-orient: vertical;
}
- 获取到文本离页面顶部的间隔
let query = wx.
createSelectorQuery()
.in(this);
query
.select('.toll-station-name-en').boundingClientRect(data => {console.log("节点离页面顶部的间隔为" + data.height);
if (data.height > 40) {// 管制你文本展现的最大高度
this.enOverflow = true
}
}).exec();
- 残缺代码
<template>
<view class="detail-content">
<view class="block"></view>
<view class="content">
<view class="park-lot">
<view class="toll-station" style="margin-right: 30rpx;">
<view class="toll-station-name toll-station-name-en" :class="{hide:enOverflow}"
:style="{height:(exOverflow&&!enOverflow?'40px':'auto')}" @click.stop="showEn()"
ref="enStation">{{detail.enStation}}</view>
<view class="tooltip" v-if="showToolTipEn">
{{detail.enStation}}
</view>
</view>
<image src="../../static/to.png" mode=""class="to"></image>
<view class="toll-station" style="margin-left: 30rpx;">
<view class="toll-station-name toll-station-name-ex" :class="{hide:exOverflow}"
:style="{height:(enOverflow&&!exOverflow?'40px':'')}"@click.stop="showEx()">
{{detail.exStation}}
</view>
<view class="tooltip" v-if="showToolTipEx">
{{detail.exStation}}
</view>
</view>
</view>
</view>
</view>
</template>
<script>
export default {data() {
return {
detail: {
enStation: '我不暗藏',
exStation: '我暗藏啦我暗藏啦我暗藏啦我暗藏啦我暗藏啦我暗藏啦'
},
showToolTipEn: false,
showToolTipEx: false,
enOverflow: false, // 是否溢出
exOverflow: false, // 是否溢出
}
},
onLoad() {this.judgmentOverflow()
},
methods: {judgmentOverflow() {
let query = wx.
createSelectorQuery()
.in(this);
query
.select('.toll-station-name-en').boundingClientRect(data => {console.log("节点离页面顶部的间隔为" + data.height);
if (data.height > 40) {this.enOverflow = true}
}).exec();
query
.select('.toll-station-name-ex').boundingClientRect(data => {console.log("节点离页面顶部的间隔为" + data.height);
if (data.height > 40) {this.exOverflow = true}
}).exec();},
showEn() {if (!this.enOverflow) {return}
this.showToolTipEn = !this.showToolTipEn
},
showEx() {if (!this.exOverflow) {return}
this.showToolTipEx = !this.showToolTipEx
},
}
}
</script>
<style lang="scss" scoped>
.detail-content {
.content {width: calc(100% - 60rpx);
margin: 0 30rpx 0;
background-color: #fff;
border-radius: 10rpx;
height: 1018rpx;
.park-lot {
display: flex;
padding-top: 60rpx;
margin: 0 30rpx;
.toll-station {
width: 40%;
text-align: center;
position: relative;
.toll-station-name {
min-height: 39rpx;
// max-height: 78rpx;
// height: auto;
font-size: 32rpx;
font-weight: 500;
color: #333333;
line-height: 20px;
}
.hide {
word-break: break-word; // 换行模式
overflow: hidden;
text-overflow: ellipsis; // 修剪文字,超过 2 行显示省略号
display: -webkit-box;
-webkit-line-clamp: 2; // 此处为下限行数
-webkit-box-orient: vertical;
}
// 气泡提示框
.tooltip {
width: 120px;
height: auto;
background: #000000;
opacity: 0.69;
padding: 8px;
position: relative;
font-size: 13px;
border-radius: 6px;
font-weight: 400;
color: #FFFFFF;
line-height: 15px;
position: absolute;
top: 95rpx;
left: 0;
z-index: 999;
}
.tooltip::before {
content: '';
width: 0;
height: 0;
border-width: 8px;
border-color: transparent transparent #000 transparent;
border-style: dashed dashed solid dashed;
position: absolute;
top: -16px;
left: 45%;
}
}
.to {
width: 67rpx;
height: 18rpx;
margin-top: 26rpx;
background-size: 100%;
}
}
}
}
</style>
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正文完