微信小程序手動添加收貨地址省市區(qū)聯(lián)動

更新時間：2020年05月18日 17:30:06 作者：月亮上的垂耳朵

這篇文章主要為大家詳細介紹了微信小程序手動添加收貨地址省市區(qū)聯(lián)動，文中示例代碼介紹的非常詳細，具有一定的參考價值，感興趣的小伙伴們可以參考一下

本文實例為大家分享了微信小程序手動添加收貨地址省市區(qū)聯(lián)動的具體代碼，供大家參考，具體內(nèi)容如下

先看效果圖

html部分

用小程序的piceker-view 嵌入頁面的滾動選擇器

<picker-view indicator-style="height: 50px;" style="width:100%; height: 400rpx;" bindchange="bindChange">
 <picker-view-column class="selectItem">
 <view class="tooth" wx:for="{{province}}" wx:key="this">{{item.name}}</view>
 </picker-view-column>
 <picker-view-column class="selectItem">
 <view class="tooth" wx:for="{{city}}" wx:key="this">{{item.name}}</view>
 </picker-view-column>
 <picker-view-column class="selectItem">
 <view class="tooth" wx:for="{{area}}" wx:key="this">{{item.name}}</view>
 </picker-view-column>
</picker-view>

js部分

這部分代碼其實是因為后端同學(xué)太懶了，數(shù)據(jù)沒有整理就直接返回過來了。我人微言輕的，只好自己默默地整理了。

 // 把數(shù)據(jù)格式化成頁面現(xiàn)實的形式
 formatCityData: function () {
 var that = this,
 region = that.data.region,
 selectItems = [],
 province = [],
 city = [],
 area = [],
 area_index = that.data.area_index,
 city_index = that.data.city_index,
 province_index = that.data.province_index;
 // 第一遍格式化數(shù)據(jù)，
 for (var i = 0; i < region.length; i++) {
 if (region[i].parent_id == 1) {
 var provinceItem = region[i];
 var selectItem1 = { label: provinceItem.zh_name, provinceId: provinceItem.id, children: [] };
 for (var j = 0; j < region.length; j++) {
  if (region[j].parent_id == provinceItem.id) {
  var cityItem = region[j];
  var selectItem2 = { label: cityItem.zh_name, cityId: cityItem.id, children: [] };
  selectItem1.children.push(selectItem2);
  for (var k = 0; k < region.length; k++) {
  if (region[k].parent_id == cityItem.id) {
  var areaItem = region[k];
  var selectItem3 = { label: areaItem.zh_name, areaId: areaItem.id, children: [] };
  selectItem2.children.push(selectItem3);
  }
  }
  }
 }
 selectItems.push(selectItem1);
 }
 }
 // 遍歷所有的數(shù)據(jù)。將省的名字放在對應(yīng)的數(shù)組中
 for (let i = 0; i < selectItems.length; i++) {
 province.push({
 name: selectItems[i].label,
 id: selectItems[i].provinceId
 });
 }
 if (selectItems[province_index].children && selectItems[province_index].children) {// 判斷選中的省級里面有沒有市
 if (selectItems[province_index].children[city_index]) {
 for (let i = 0; i < selectItems[province_index].children.length; i++) {
  city.push({
  name: selectItems[province_index].children[i].label,
  id: selectItems[province_index].children[i].cityId
  });
 }
 if (selectItems[province_index].children[city_index].children) {
  if (selectItems[province_index].children[city_index].children[area_index]) {
  for (let i = 0; i < selectItems[province_index].children[city_index].children.length; i++) {
  area.push({
  name: selectItems[province_index].children[city_index].children[i].label,
  id: selectItems[province_index].children[city_index].children[i].areaId
  });
  }
  } else {
  that.setData({
  area_index: 0
  });
  for (let i = 0; i < selectItems[province_index].children[city_index].childre.length; i++) {
  area.push({
  name: selectItems[province_index].children[city_index].children[i].label,
  id: selectItems[province_index].children[city_index].children[i].areaId
  });
  }
  }
 } else {
  area.push({
  name: province[province_index].children[city_index].label,
  id: province[province_index].children[city_index].areaId
  });
 }
 } else {
 that.setData({
  city_index: 0
 });
 for (let i = 0; i < selectItems[province_index].childre.length; i++) {
  city.push({
  name: selectItems[province_index].children[i].label,
  id: selectItems[province_index].children[i].cityId
  });
 }
 }
 } else {
 // 如果該省沒有市，那么就把省的名字作為市和區(qū)的名字
 city.push({
 name: province[province_index].label,
 id: province[province_index].cityId
 });
 area.push({
 name: province[province_index].label,
 id: province[province_index].areaId
 });
 }
 // 選擇成功后把對應(yīng)的數(shù)組賦值給相應(yīng)的變量
 that.setData({
 province: province,
 city: city,
 area: area
 });
 provincialCity = {
 province: {
 name: province[that.data.province_index].name,
 id: province[that.data.province_index].id,
 },
 city: {
 name: city[that.data.city_index].name,
 id: city[that.data.city_index].id
 },
 area: {
 name: area[that.data.area_index].name,
 id: area[that.data.area_index].id
 } 
 }
 },

后臺返回的格式如下：

// 選擇城市
 bindChange: function (e) {
 const val = e.detail.value;
 this.setData({
 province_index: val[0],
 city_index: val[1],
 area_index: val[2]
 });
 this.formatCityData();
 },

前面說的是新增收獲地址，后面是編輯

html部分

value就是用來回顯之前選擇的城市。

把整理好的省市區(qū)分別遍歷一下，把當(dāng)前的id與數(shù)據(jù)中的id作對比。把相對應(yīng)的數(shù)據(jù)的下標給取出來。

this.data.province.map(function(val, key) {
 if (val.id === that.data.result.province.id) {
 provinceId = key;
 }
 return provinceId;
 })
 this.setData({
 province_index: provinceId
 });
 this.formatCityData();
 this.data.city.map(function(val, key) {
 if (val.id === that.data.result.city.id) {
 cityId = key;
 }
 return cityId;
 })
 this.setData({
 city_index: cityId
 });
 this.formatCityData();
 this.data.area.map(function (val, key) {
 if (val.id === that.data.result.area.id) {
 areaId = key;
 }
 return areaId;
 })
 var lists = [provinceId, cityId, areaId];
 this.setData({ cityShow: lists });

為大家推薦現(xiàn)在關(guān)注度比較高的微信小程序教程一篇：《微信小程序開發(fā)教程》小編為大家精心整理的，希望喜歡。

以上就是本文的全部內(nèi)容，希望對大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。

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