微信小程序不允许DOM操作,所以不能用addClass这种方法,我的用法如下。
点击元素后,获取元素中data-select值,赋值给catalogSelect,然后判断二者是否相等,一样则添加class(class的css可以先写好)。
源码下载:/download/dknightl/9939872
<!--页面--><view class="info_choose "><view class="catalog_name">花色</view><view class="catalog_items display-flex-row" ><block wx:for="{{catalogs}}"><text data-select="{{item.select}}" class="{{item.select == catalogSelect ? 'active':''}} catalog_item" bindtap="chooseCatalog">{{item.catalogName}}</text></block></view></view>
//js代码Page({data: {catalogs:[{ "catalogName": "卡其卡其","select":1},{"catalogName": "其卡其卡卡其卡其","select": 2},{"catalogName": "鲤鱼鲤鱼","select": 3},{"catalogName": "神迹神迹卡其卡其","select": 4}, ],catalogSelect:0,//判断是否选中},chooseCatalog:function(data){var that=this;that.setData({//把选中值放入判断值catalogSelect : data.currentTarget.dataset.select})}})