微信小程序如何实现城市选择及搜索功能
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实现搜索城市功能
js文件
// pages/address/address.js var app = getApp() Page({ data: { searchLetter: [], showLetter: "", winHeight: 0, cityList: [], isShowLetter: false, scrollTop: 0,//置顶高度 scrollTopId: '',//置顶id city: "", cityList_search:[], address_show:false, search_city:[], is_data:true, empty:'', }, onLoad: function (options) { console.log(options.currentcity) // 生命周期函数--监听页面加载 let that = this; that.setData({ city: options.currentcity }) var searchLetter = ["A", "B", "C", "D", "E", "F", "G", "H", "J", "K", "L", "M", "N", "P", "Q", "R", "S", "T", "W", "X", "Y", "Z"]; new Promise(function (resolve) { that.getCity(function (data) { console.log(data) let cityObj = data.cityList; var tempObj = []; for (var i = 0; i < searchLetter.length; i++) { var initial = searchLetter[i]; var cityInfo = []; var tempArr = {}; tempArr.initial = initial; for (var j = 0; j < cityObj.length; j++) { if (initial == cityObj[j].initial) { cityInfo.push(cityObj[j]); } } tempArr.cityInfo = cityInfo; tempObj.push(tempArr); } console.log(tempObj) that.setData({ cityList: tempObj }) resolve(tempObj); }) }).then(function(res){ console.log(res) let cityObj = []; var sysInfo = wx.getSystemInfoSync(); var winHeight = sysInfo.windowHeight; var itemH = winHeight / searchLetter.length; var tempObj = []; for (var i = 0; i < searchLetter.length; i++) { var temp = {}; temp.name = searchLetter[i]; temp.tHeight = i * itemH; temp.bHeight = (i + 1) * itemH; tempObj.push(temp) } that.setData({ winHeight: winHeight, itemH: itemH, searchLetter: tempObj, }) }) }, getCity: function (callBack){ let that = this; app.commonRequest('wxapp/public/getCityList', 'POST', {}, function (data) { console.log(data); if (data.status == '200') { that.setData({ cityList: data.datainfo.list, // city: data.datainfo.getcode, }) callBack({ cityList: data.datainfo.list }) } else { callBack({ cityList: data.datainfo.list }) } }) }, set_current_city:function(set_city,callBack){ let that = this; app.commonRequest('wxapp/public/getCityList', 'POST', { area_name: set_city, cityCheckType:1, }, function (data) { console.log(data) if (data.status == "200") { callBack({ data: data }) }else { callBack({ data: data }) } }) }, search_city:function(e){ let that =this; that.setData({ address_show:true }) }, cancel_city:function(e){ let that = this; that.setData({ search_city:[], address_show: false, empty:'', }) }, seacrch_city:function(e){ let that =this; let search_val = e.detail.value; console.log(search_val); app.commonRequest('wxapp/public/getCityList', 'POST', { area_name: search_val }, function (data) { console.log(data) if(data.status == "200"){ if (data.datainfo.list.length >0){ that.setData({ search_city: data.datainfo.list, is_data: true }) } else{ that.setData({ search_city: data.datainfo.list, is_data:false }) } } }) }, clickLetter: function (e) { console.log(e.currentTarget.dataset.letter) var showLetter = e.currentTarget.dataset.letter; this.setData({ showLetter: showLetter, isShowLetter: true, scrollTopId: showLetter, }) var that = this; setTimeout(function () { that.setData({ isShowLetter: false }) }, 1000) }, //选择城市 bindCity: function (e) { let that = this; console.log("bindCity"); that.set_current_city(e.currentTarget.dataset.city,function(data){ console.log(data) }); wx.setStorageSync('currentcity', e.currentTarget.dataset.city) // that.onLoad(); this.setData({ city: e.currentTarget.dataset.city, // scrollTop: 0, }) // 回到首页 wx.switchTab({ url: '/pages/index/index' }) }, })
wxml文件
当前 {{item.name}} {{showLetter}} × 取消 当前:{{city}} 所有城市 {{item.initial}} {{ct.area_name}} {{ct.area_name}} 暂无数据
wxss文件
/* pages/address/address.wxss */ .searchbox{ overflow: hidden; margin: 0 20rpx; } .search{ width: 20px; height: 20px; float: left; margin:7rpx 10rpx; } .input_box{ width: 630rpx; height: 50rpx; background: #efefef; border-radius: 30rpx; float: left; } .input_box input{ font-size: 25rpx; width: 450rpx; float: left; } .input_box .close{ width:30rpx; height:30rpx; background:#aaa; color:#fff; border-radius:50%; float:right; margin-right:20rpx; margin-top:10rpx; line-height:27rpx; font-size:30rpx; text-align:center; } .searchbox .cancel{ font-size: 25rpx; color: #53985F; width: 80rpx; text-align: right; float: right; line-height: 50rpx; } .current_city{ border-bottom: 1rpx solid #eee; } .li_style{ height: 50rpx; padding: 20rpx 0; width: 710rpx; line-height: 50rpx; font-size: 29rpx; margin:0 20rpx; } .searchLetter { position: fixed; right: 0; width: 50rpx; text-align: center; justify-content: center; display: flex; flex-direction: column; color: #666; z-index: 1; } .searchLetter view { margin-top: 20rpx; } .touchClass { background-color: #fff; color: #fff; top: 100rpx; } .showSlectedLetter { background-color: rgba(0, 0, 0, 0.5); color: #fff; display: flex; justify-content: center; align-items: center; position: fixed; top: 50%; left: 50%; margin: -100rpx; width: 200rpx; height: 200rpx; border-radius: 20rpx; font-size: 52rpx; z-index: 1; } .selection { display: flex; width: 100%; flex-direction: column; margin-top: 10rpx; } .item_letter { display: flex; background-color: #f5f5f5; height: 50rpx; padding-left: 34rpx; align-items: center; font-size: 24rpx; color: #666; } .item_city { display: flex; background-color: #fff; height: 100rpx; padding-left: 34rpx; align-items: center; border-bottom: 1rpx solid #ededed; font-size: 24rpx; color: #666; } .hotcity-common { font-size: 24rpx; color: #666; padding: 0 0 0 30rpx; } .thisCity { padding-top: 30rpx; } .thisCityName { display: inline-block; border: 1rpx solid #2ab4ff; border-radius: 8rpx; padding: 10rpx 0; font-size: 24rpx; color: #2ab4ff; text-align: center; min-width: 149.5rpx; margin: 20rpx 0 20rpx 30rpx; } .thishotText { color: #53985F; font-size: 20rpx; margin: 0 !important; } .slectCity { border-color: #2ab4ff !important; } .slectCity view { color: #2ab4ff !important; } .weui-grid { position: relative; float: left; padding: 10rpx 0; width: 149.5rpx; box-sizing: border-box; border: 1rpx solid #ececec; border-radius: 8rpx; margin: 10rpx 12rpx; } .weui-grid__label { display: block; text-align: center; color: #333; font-size: 24rpx; white-space: nowrap; text-overflow: ellipsis; overflow: hidden; } .noData{ text-align: center; font-size: 30rpx; color: #aaa; line-height: 60rpx; }
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