swift3-省、市、区地址选择器，plist格式数据（UIPickerView）
【Summary】
This article mainly introduces the basic usage of UIPickerView, we can obtain address information by selecting the provinces ,cities and districts.
【Explanation and Effect Picture】
- The cities and districts will change when you switch the province
- Districts will change when you switch the city
- Click the confirm button,then the information label will show the address you choose
【Preparation】
Before we start ,we need a plist which contains all address information.
The data format is as follows:
This is part of the source code:
<dict>
<key>河北省key>
<dict>
<key>石家庄市key>
<array>
<string>长安区string>
<string>桥东区string>
<string>桥西区string>
<string>新华区string>
<string>井陉矿区string>
<string>裕华区string>
<string>井陉县string>
<string>正定县string>
<string>栾城县string>
<string>行唐县string>
<string>灵寿县string>
<string>高邑县string>
<string>深泽县string>
<string>赞皇县string>
<string>无极县string>
<string>平山县string>
<string>元氏县string>
<string>赵县string>
<string>辛集市string>
<string>藁城市string>
<string>晋州市string>
<string>新乐市string>
<string>鹿泉市string>
array>
<key>唐山市key>
<array>
<string>路南区string>
<string>路北区string>
<string>古冶区string>
<string>开平区string>
<string>丰南区string>
<string>丰润区string>
<string>滦县string>
<string>滦南县string>
<string>乐亭县string>
<string>迁西县string>
<string>玉田县string>
<string>唐海县string>
<string>遵化市string>
<string>迁安市string>
array>
<key>秦皇岛市key>
<array>
<string>海港区string>
<string>山海关区string>
<string>北戴河区string>
<string>青龙满族自治县string>
<string>昌黎县string>
<string>抚宁县string>
<string>卢龙县string>
array>
<key>邯郸市key>
<array>
<string>邯山区string>
<string>丛台区string>
<string>复兴区string>
<string>峰峰矿区string>
<string>邯郸县string>
<string>临漳县string>
<string>成安县string>
<string>大名县string>
<string>涉县string>
<string>磁县string>
<string>肥乡县string>
<string>永年县string>
<string>邱县string>
<string>鸡泽县string>
<string>广平县string>
<string>馆陶县string>
<string>魏县string>
<string>曲周县string>
<string>武安市string>
array>
<key>邢台市key>
<array>
<string>桥东区string>
<string>桥西区string>
<string>邢台县string>
<string>临城县string>
<string>内丘县string>
<string>柏乡县string>
<string>隆尧县string>
<string>任县string>
<string>南和县string>
<string>宁晋县string>
<string>巨鹿县string>
<string>新河县string>
<string>广宗县string>
<string>平乡县string>
<string>威县string>
<string>清河县string>
<string>临西县string>
<string>南宫市string>
<string>沙河市string>
array>
<key>保定市key>
<array>
<string>新市区string>
<string>北市区string>
<string>南市区string>
<string>满城县string>
<string>清苑县string>
<string>涞水县string>
<string>阜平县string>
<string>徐水县string>
<string>定兴县string>
<string>唐县string>
<string>高阳县string>
<string>容城县string>
<string>涞源县string>
<string>望都县string>
<string>安新县string>
<string>易县string>
<string>曲阳县string>
<string>蠡县string>
<string>顺平县string>
<string>博野县string>
<string>雄县string>
<string>涿州市string>
<string>定州市string>
<string>安国市string>
<string>高碑店市string>
array>
<key>张家口市key>
<array>
<string>桥东区string>
<string>桥西区string>
<string>宣化区string>
<string>下花园区string>
<string>宣化县string>
<string>张北县string>
<string>康保县string>
<string>沽源县string>
<string>尚义县string>
<string>蔚县string>
<string>阳原县string>
<string>怀安县string>
<string>万全县string>
<string>怀来县string>
<string>涿鹿县string>
<string>赤城县string>
<string>崇礼县string>
array>
<key>承德市key>
<array>
<string>双桥区string>
<string>双滦区string>
<string>鹰手营子矿区string>
<string>承德县string>
<string>兴隆县string>
<string>平泉县string>
<string>滦平县string>
<string>隆化县string>
<string>丰宁满族自治县string>
<string>宽城满族自治县string>
<string>围场满族蒙古族自治县string>
array>
<key>沧州市key>
<array>
<string>新华区string>
<string>运河区string>
<string>沧县string>
<string>青县string>
<string>东光县string>
<string>海兴县string>
<string>盐山县string>
<string>肃宁县string>
<string>南皮县string>
<string>吴桥县string>
<string>献县string>
<string>孟村回族自治县string>
<string>泊头市string>
<string>任丘市string>
<string>黄骅市string>
<string>河间市string>
array>
<key>廊坊市key>
<array>
<string>安次区string>
<string>广阳区string>
<string>固安县string>
<string>永清县string>
<string>香河县string>
<string>大城县string>
<string>文安县string>
<string>大厂回族自治县string>
<string>霸州市string>
<string>三河市string>
array>
<key>衡水市key>
<array>
<string>桃城区string>
<string>枣强县string>
<string>武邑县string>
<string>武强县string>
<string>饶阳县string>
<string>安平县string>
<string>故城县string>
<string>景县string>
<string>阜城县string>
<string>冀州市string>
<string>深州市string>
array>
dict>
【Function Realization】
- Get data from address.plist,and save it as NSDictionary in the local
2.The addressPickView will load all provinces, we choose the first city and the first district of the city as default - Realize the func of UIPickerViewDelegate and UIPickerViewDataSource,refresh the addressPickView by reloadComponent()
- Realize the click action of the confirm button
import UIKit
class ViewController: UIViewController,UIPickerViewDelegate,UIPickerViewDataSource{
//pickerview 视图
@IBOutlet weak var addressPickView: UIPickerView!
//用于显示地址的label
@IBOutlet weak var addressLabel: UILabel!
//省 数组
var provincesData:NSArray!
//市 数组
var citiesData:NSArray!
//区 数组
var districtsData:NSArray!
//省 字典
var provincesList:NSDictionary!
//市 字典
var citiesList:NSDictionary!
//选择的省
var selectedProvince:String!
//选择的市
var selectedCity:String!
//选择的区
var selectedDistrict:String!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
//得到本地文件路径
let addressPath = Bundle.main.path(forResource: "address", ofType: "plist")
//得到字典类型数据
let dicPList = NSDictionary(contentsOfFile: addressPath!)!
self.provincesList = dicPList
self.provincesData = self.provincesList.allKeys as NSArray!
//初始化
//默认取出第一个省、市、区的数据
self.selectedProvince = self.provincesData[0] as! String
self.citiesList = self.provincesList[selectedProvince] as! NSDictionary
self.citiesData = self.citiesList.allKeys as NSArray!
self.selectedCity = self.citiesData[0] as! String
self.districtsData = self.citiesList[selectedCity] as! NSArray
self.selectedDistrict = self.districtsData[0] as! String
self.addressPickView.delegate = self
self.addressPickView.dataSource = self
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
//确认按钮，显示最新地址
@IBAction func commitTapped(_ sender: Any) {
self.addressLabel.text = "\(self.selectedProvince!)"+"\(self.selectedCity!)"+"\(self.selectedDistrict!)"
}
//UIPickerViewDataSource
func numberOfComponents(in pickerView: UIPickerView) -> Int {
return 3
}
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
if component == 0 {
return self.provincesData.count
}else if component == 1 {
return self.citiesData.count
}else{
return self.districtsData.count
}
}
//UIPickerViewDelegate
func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
if component == 0 {
return self.provincesData[row] as? String
}else if component == 1 {
return self.citiesData[row] as? String
}else{
return self.districtsData[row] as? String
}
}
func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
if component == 0 {
self.selectedProvince = self.provincesData[row] as! String
self.citiesList = self.provincesList[selectedProvince] as! NSDictionary
self.citiesData = citiesList.allKeys as NSArray
self.selectedCity = self.citiesData[0] as! String
self.districtsData = self.citiesList[selectedCity] as! NSArray
self.selectedDistrict = self.districtsData[0] as! String
self.addressPickView.reloadComponent(1)
self.addressPickView.reloadComponent(2)
NSLog("选择的省"+selectedProvince)
}else if component == 1 {
self.selectedCity = self.citiesData[row] as! String
self.districtsData = self.citiesList[selectedCity] as! NSArray
self.selectedDistrict = self.districtsData[0] as! String
self.addressPickView.reloadComponent(2)
NSLog("选择的市"+selectedCity)
}else{
self.selectedDistrict = self.districtsData[row] as! String
NSLog("选择的区"+selectedDistrict)
}
}
}
【Download Source Code】
http://download.csdn.net/detail/nc_jingjing/9788521
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