本篇内容介绍了“微信小程序中怎么实现ecshop地址三级联动”的有关知识,在实际案例的操作过程中,不少人都会遇到这样的困境,接下来就让小编带领大家学习一下如何处理这些情况吧!希望大家仔细阅读,能够学有所成!
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picker标签,官方给出的实例:
<view class="section"> <view class="section__title">地区选择器</view> <picker bindchange="bindPickerChange" value="{{index}}" range="{{array}}"> <view class="picker"> 当前选择:{{array[index]}} </view> </picker> </view> Page({ data: { array: ['美国', '中国', '巴西', '日本'], index: 0, }, bindPickerChange: function(e) { console.log('picker发送选择改变,携带值为', e.detail.value) this.setData({ index: e.detail.value }) }, })
wxml页面:
<view class="add-list under-line" > <view class="add-lab">收货地址</view> <view class="add-text"> <picker class="w-3" bindchange="bindPickerProvince" value="{{provinceIndex}}" range="{{province}}" > <view class="picker">{{province[provinceIndex]}}</view> </picker> <picker class="w-3" bindchange="bindPickerCity" value="{{cityIndex}}" range="{{city}}" > <view class="picker">{{city[cityIndex]}}</view> </picker> <picker class="w-3" bindchange="bindPickerDistrict" value="{{districtIndex}}" range="{{district}}" > <view class="picker">{{district[districtIndex]}}</view> </picker> </view> </view>
js页面:
var app = getApp() Page({ data:{ motto: 'jxcat', serverUrl: app.globalData.ajaxUrl, baseUrl: app.globalData.baseUrl, title: "收货地址", address_id: "", address: "", province:[], province_id: [], //后台返回的数据对应 region_id city,district 与此相同 province_name: [], //后台返回的数据对应 region_name provinceIndex: 0, //wxml页面选择的选项,从0开始 provinceId: 0, //根据wxml页面选择的选项获取到province_id: []对应的region_id city:[]. city_id: [], city_name: [], cityIndex: 0, cityId: 0, district:[], district_id: [], district_name: [], districtIndex: 0, districtId: 0, }, onLoad:function(options){ // 页面初始化 options为页面跳转所带来的参数 var that = this var get_data wx.checkSession({ success: function(){ //登录态未过期 wx.getStorage({ key: 'wcx_session', success: function(sres) { get_data = { m: 'api', c: 'user' , a: 'edit_address', wcx_session: sres.data, } if(options.act == 'edit'){ get_data = { m: 'api', c: 'user' , a: 'edit_address', id: options.id, wcx_session: sres.data, } } wx.request({ url: app.globalData.ajaxUrl, data: get_data, header: { 'content-type': 'application/json' }, success: function(res) { if(options.act == "edit"){ that.data.provinceId = res.data.consignee.province that.data.cityId = res.data.consignee.city that.data.districtid = res.data.consignee.district } for(var i=0; i<res.data.province_list.length; i++){{ that.data.province_id[i] = res.data.province_list[i].region_id //把region_id存入province_id that.data.province_name[i] = res.data.province_list[i].region_name //把region_name存入province_name if(res.data.consignee.province == res.data.province_list[i].region_id){ that.data.provinceIndex = i } }} for(var i=0; i<res.data.city_list.length; i++){{ that.data.city_id[i] = res.data.city_list[i].region_id that.data.city_name[i] = res.data.city_list[i].region_name if(res.data.consignee.city == res.data.city_list[i].region_id){ that.data.cityIndex = i } }} for(var i=0; i<res.data.district_list.length; i++){{ that.data.district_id[i] = res.data.district_list[i].region_id that.data.district_name[i] = res.data.district_list[i].region_name if(res.data.consignee.district == res.data.district_list[i].region_id){ that.data.districtIndex = i } }} that.data.address_id = options.id that.setData({ consignee: res.data.consignee, province: that.data.province_name, provinceIndex: that.data.provinceIndex, city: that.data.city_name, cityIndex: that.data.cityIndex, district: that.data.district_name, districtIndex: that.data.districtIndex }) } }) //request } }) }, fail: function(){ //登录态过期 wx.login() } }) }, bindPickerProvince: function(event){ var that = this var getId = event.detail.value //获取到wxml选择的选项对应的下标,从0开始 that.data.provinceId = that.data.province_id[getId] //根据获取到的下标获取到region_name对应的region_id wx.request({ url: app.globalData.ajaxUrl, data: { m: 'api', c: 'public' , a: 'region', rtype: 2, rparent: that.data.provinceId, }, header: { 'content-type': 'application/json' }, success: function(res){ for(var i=0; i<res.data.regions.length; i++){{ that.data.city_id[i] = res.data.regions[i].region_id that.data.city_name[i] = res.data.regions[i].region_name }} that.setData({ city: that.data.city_name, provinceIndex: getId, }) }, }) }, bindPickerCity: function(event){ var that = this var getId = event.detail.value that.data.cityId = that.data.city_id[getId] wx.request({ url: app.globalData.ajaxUrl, data: { m: 'api', c: 'public' , a: 'region', rtype: 3, rparent: that.data.cityId, }, header: { 'content-type': 'application/json' }, success: function(res){ for(var i=0; i<res.data.regions.length; i++){{ that.data.district_id[i] = res.data.regions[i].region_id that.data.district_name[i] = res.data.regions[i].region_name }} that.setData({ district: that.data.district_name, cityIndex: getId, }) }, }) }, bindPickerDistrict: function(event){ var that = this var getId = event.detail.value that.data.districtId = that.data.district_id[getId] that.setData({ districtIndex: getId, }) }, formSubmit: function(event) { var that = this wx.checkSession({ success: function(){ //登录态未过期 wx.getStorage({ key: 'wcx_session', success: function(sres) { wx.request({ url: app.globalData.ajaxUrl, data: { m: 'api', c: 'user' , a: 'add_address', address_id: that.data.address_id, province: that.data.provinceId, // wxml页面选择的地址对应的 region_id city: that.data.cityId, district: that.data.districtId, address: event.detail.value.address, consignee: event.detail.value.consignee, mobile: event.detail.value.mobile, zipcode: event.detail.value.zipcode, wcx_session: sres.data, }, header: { 'content-type': 'application/json' }, success: function(res) { console.log(res) wx.redirectTo({ url: 'address' }) } }) //request } }) }, fail: function(){ //登录态过期 wx.login() } }) }, })
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