这篇文章主要为大家展示了“如何制作微信小程序下拉框组件”,内容简而易懂,条理清晰,希望能够帮助大家解决疑惑,下面让小编带领大家一起研究并学习一下“如何制作微信小程序下拉框组件”这篇文章吧。
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68 | /**DropDownMenu**/ /*总菜单容器*/ .menu { display: block; height: 28px; position: relative; } /*一级菜单*/ .menu dt { font-size: 15px; float: left; /*hack*/ width: 33%; height: 38px; border-right: 1px solid #d2d2d2; border-bottom: 1px solid #d2d2d2; text-align: center; background-color: #f4f4f4; color: #5a5a5a; line-height: 38px; z-index: 2; } /*二级菜单外部容器样式*/ .menu dd { position: absolute; width: 100%; margin-top: 40px; left: 0; z-index: -99; } /*二级菜单普通样式*/ .menu li { font-size: 14px; line-height: 34px; color: #575757; height: 34px; display: block; padding-left: 8px; background-color: #fff; border-bottom: 1px solid #dbdbdb; } /*二级菜单高亮样式*/ .menu li.highlight { background-color: #f4f4f4; color: #48c23d; } /* 显示与隐藏 */ .show { /*display: block;*/ visibility: visible; } .hidden { /*display: none;*/ visibility: hidden; } |
wxml
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11 | < dl class = "menu" > < block wx:for = "{{reportData}}" wx:key = "idMenu" wx:for-item = "menuItem" wx:for-index = "idMenu" > < dt data-index = "{{idMenu}}" bindtap = "tapMainMenu" >{{menuItem.reportType}}</ dt > < dd class = "{{subMenuDisplay[idMenu]}}" animation = "{{animationData[idMenu]}}" > < ul wx:for = "{{menuItem.chilItem}}" wx:key = "chilItem.ID" wx:for-item = "chilItem" wx:for-index = "idChil" > < li class = "{{subMenuHighLight[idMenu][idChil]}}" bindtap = "tapSubMenu" data-index = "{{idMenu}}-{{idChil}}" >{{chilItem.Name}}</ li > </ ul > < picker class = "timePicker" mode = "date" value = "{{dateValue}}" bindchange = "datePickerBindchange" start = "1999-01-01" end = "2999-12-12" > 时间:{{dateValue}}</ picker > </ dd > </ block > </ dl > |
js
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131 | //数据源 var ReportDataSync = [ { reportType: "日报1" , chilItem: [ { ID: 1, Name: "日报1" , ReportUrl: "DailyReport.aspx" , Type: 1 }, { ID: 2, Name: "日报2" , ReportUrl: "DailyReport.aspx" , Type: 1 }, { ID: 3, Name: "日报3" , ReportUrl: "DailyReport.aspx" , Type: 1 }] }, { reportType: "目录2" , chilItem: [ { ID: 1, Name: "目录1" , ReportUrl: "DailyReport.aspx" , Type: 2 }, { ID: 2, Name: "目录2" , ReportUrl: "DailyReport.aspx" , Type: 2 }, { ID: 3, Name: "目录3" , ReportUrl: "DailyReport.aspx" , Type: 2 }, { ID: 4, Name: "目录4" , ReportUrl: "DailyReport.aspx" , Type: 2 }] }, { reportType: "月报3" , chilItem: [ { ID: 1, Name: "月报1" , ReportUrl: "DailyReport.aspx" , Type: 1 }, { ID: 2, Name: "月报2" , ReportUrl: "DailyReport.aspx" , Type: 2 }] } ] //定义字段 var initSubMenuDisplay = [] var initSubMenuHighLight = [] var initAnimationData = [] /// 初始化DropDownMenu loadDropDownMenu() that.setData({ reportData: ReportDataSync, //菜单数据 subMenuDisplay: initSubMenuDisplay, //一级 subMenuHighLight: initSubMenuHighLight, //二级 animationData: initAnimationData //动画 }) //一级菜单点击 tapMainMenu: function (e) { //获取当前一级菜单标识 var index = parseInt(e.currentTarget.dataset.index); //改变显示状态 for ( var i = 0; i < initSubMenuDisplay.length; i++) { if (i == index) { if ( this .data.subMenuDisplay[index] == "show" ) { initSubMenuDisplay[index] = 'hidden' } else { initSubMenuDisplay[index] = 'show' } } else { initSubMenuDisplay[i] = 'hidden' } } this .setData({ subMenuDisplay: initSubMenuDisplay }) this .animation(index) }, //二级菜单点击 tapSubMenu: function (e) { //隐藏所有一级菜单 //this.setData({ //subMenuDisplay: initSubMenuDisplay() //}); // 当前二级菜单的标识 var indexArray = e.currentTarget.dataset.index.split( '-' ); // 删除所在二级菜单样式 for ( var i = 0; i < initSubMenuHighLight.length; i++) { if (indexArray[0] == i) { for ( var j = 0; j < initSubMenuHighLight[i].length; j++) { initSubMenuHighLight[i][j] = '' ; } } } //给当前二级菜单添加样式 initSubMenuHighLight[indexArray[0]][indexArray[1]] = 'highlight' ; //刷新样式 this .setData({ subMenuHighLight: initSubMenuHighLight }); // 设置动画 this .animation(indexArray[0]); }, //菜单动画 animation: function (index) { // 定义一个动画 var animation = wx.createAnimation({ duration: 400, timingFunction: 'linear' , }) // 是显示还是隐藏 var flag = this .data.subMenuDisplay[index] == 'show' ? 1 : -1; // 使之Y轴平移 animation.translateY(flag * ((initSubMenuHighLight[index].length + 1) * 38)).step(); // 导出到数据,绑定给view属性 var animationStr = animation.export(); // 原来的数据 var animationData = this .data.animationData; animationData[index] = animationStr; this .setData({ animationData: animationData }); } /// <summary> /// 初始化DropDownMenu /// 1.一级目录 initSubMenuDisplay :['hidden'] /// 2.二级目录 initSubMenuHighLight :[['',''],['','','','']]] /// </summary> function loadDropDownMenu() { for ( var i = 0; i < ReportDataSync.length; i++) { //一级目录 initSubMenuDisplay.push( 'hidden' ) //二级目录 var report = [] for ( var j = 0; j < ReportDataSync[i].chilItem.length; j++) { report.push([ '' ]) } initSubMenuHighLight.push(report) //动画 initAnimationData.push( "" ) } |
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