产品效果
少于5行文字,则全部显示,多于5行文字,则显示 “查看全文”; 点击展开不用收起
方案思路
利用 父级盒子的高度和
overflow: hidden;和position: absolute;
代码具体实现
HTML
<!-- isShowIntro: 是否展开查看全文 --><viewclass="item-content text-f15":class="isShowIntro?'content-text line5':' content-text-show'">{{content || ''}}<spanclass="primary"v-if="isShowIntro"@click.stop="()=>{ this.isShowIntro=false }">查看全文</span></view>
style
.item-content {text {line-height: 46rpx;}.content {margin-bottom: 8rpx;}.primary {font-size: 28rpx;color: #1EA0F1;}// 查看全文 - 收起&.content-text {position: relative;max-height: 228rpx;line-height: 46rpx;overflow: hidden;text-align: left;.primary {position: absolute;top: 186rpx;left: 0;width: 100%;height: 60rpx;background-color: #fff;}}// 查看全文 - 展开&.content-text-show {position: relative;line-height: 46rpx;.primary {position: absolute;bottom: 0;left: 0;width: 100%;background-color: #fff;display: none;opacity: 0;}}}
