微信小程序 动态绑定事件并实现事件修改样式

实例代码

wxml

<scroll-view class="reportTypeScroll" scroll-x="true" scroll-left="{{toLeftNum}}"> <block wx:for-items="{{reportTypeList}}" wx:key="{{index}}"> <text type="primary" style="width:{{itemWidth}}rpx;" bindtap="bind{{item.id}}" data-typeid="{{item.id}}" class="{{currentId==item.id?'clickSel':'removeSel'}}">{{item.name}}</text> </block> </scroll-view>

js

var reportTypeList = [ { name: "日报1", id: "1" }, { name: "目录2", id: "2" }, { name: "季报3", id: "3" }, { name: "月报4", id: "4" }, { name: "日报5", id: "5" }, { name: "目录6", id: "6" }, { name: "季报7", id: "7" }, { name: "月报8", id: "8" }, { name: "日报9", id: "9" }, { name: "目录10", id: "10" }, { name: "季报11", id: "11" }, { name: "月报12", id: "12" }] var pageObject = { data: { reportTypeList: reportTypeList, num: 0, toLeftNum: 0, itemWidth: 150 } } for (var i = 0; i < reportTypeList.length; i++) { (function (item) { pageObject['bind' + item.id] = function (e) { var id = parseInt(e.currentTarget.dataset.typeid) this.setData({ currentId: id }) } })(reportTypeList[i]) } Page(pageObject)

wxss

/**index.wxss**/ .reportTypeScroll { margin: 40px 0px 20px 0px; white-space: nowrap; display: flex; } .clickSel { color: red; } .removeSel { color: black; } text { height: 150rpx; display: inline-block; text-align: center; }

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