IOS自动定位使用的是高德地图SDK

在高德开放平台http://lbs.amap.com/api/ios-sdk/down/ 下载2D地图SDK和搜索SDK

将SDK导入工程内 按照高德的配置说明进行配置项目

最后需要提醒 在高德的SDK中有些文件夹使用的是快捷方式， 如果你在你本地的工程编译通过, 但可能在你的服务端自动打包的时候不能自动编译通过

需要将那些快捷方式的文件夹用真实文件夹替换掉就可以了。

在工程中导入

#import "MAMapKit/MAMapKit.h"

#import "AMapSearchKit/AMapCommonObj.h"

#import "AMapSearchKit/AMapSearchAPI.h"

在Controller中使用初始化地图服务

#pragma mark MAMAP init AND 定位回调

• (void)initMap
  {

  if (![CLLocationManager locationServicesEnabled]) {
  [PXAlertView showAlertWithTitle:@"提示" message:[NSString stringWithFormat:@"请开启定位:设置 > 隐私 > 位置 > 定位服务"] completion:^(BOOL cancelled, NSInteger buttonIndex) {
  }];
  return;
  }
  else if([CLLocationManager authorizationStatus] == kCLAuthorizationStatusDenied){
  [PXAlertView showAlertWithTitle:@"提示" message:[NSString stringWithFormat:@"定位失败，请开启定位:设置 > 隐私 > 位置 > 定位服务 下 应用"] completion:^(BOOL cancelled, NSInteger buttonIndex) {
  }];
  return;
  }
  [MAMapServices sharedServices].apiKey = MAMAP_APPKEY;//高德KEY
  _mapView = [[MAMapView alloc] init];
  _mapView.delegate = self;
  _mapView.showsUserLocation = YES;
  //[_mapView setUserTrackingMode:MAUserTrackingModeFollowWithHeading animated:YES];

  point = [[AMapGeoPoint alloc] init];
  _search = [[AMapSearchAPI alloc] initWithSearchKey:MAMAP_APPKEY
  Delegate:self];
  regeoRequest = [[AMapReGeocodeSearchRequest alloc] init];
  regeoRequest.searchType = AMapSearchType_ReGeocode;
  regeoRequest.radius = 50;
  regeoRequest.requireExtension = YES;
  }

// 定位回调

• (void)mapView:(MAMapView *)mapView didUpdateUserLocation:(MAUserLocation *)userLocation updatingLocation:(BOOL)updatingLocation
  {
  if (updatingLocation) {

  point.latitude  = userLocation.coordinate.latitude;  
  point.longitude = userLocation.coordinate.longitude;
  
  regeoRequest.location = \[AMapGeoPoint locationWithLatitude:point.latitude  
                                                   longitude:point.longitude\];  
  // 发起逆地理编码  
  \[\_search AMapReGoecodeSearch:regeoRequest\];  
   \_mapView.showsUserLocation  =NO;

  }
  }
  // 逆地理编码回调

• (void)onReGeocodeSearchDone:(AMapReGeocodeSearchRequest *)request response:(AMapReGeocodeSearchResponse *)response
  {
  if (response.regeocode != nil) {

  NSString \*province=response.regeocode.addressComponent.province;  
  NSString \*city=response.regeocode.addressComponent.city;  
  NSString \*district=response.regeocode.addressComponent.district;  
  NSString \*value=nil;  
  NSString \*key=nil;
  
  NSMutableArray \*cityArrayTemp=nil;  
  for (AreaModel \*model in provinceArray) {  
      if (\[model.value isEqualToString:province\]) {  
          cityArrayTemp=\[NSMutableArray arrayWithArray:model.children\];  
      }  
  }  
  NSMutableArray \*districtArryTemp=nil;  
  if (cityArrayTemp) {  
      if (city.length>0) {  
          for (AreaModel \*cityModel in cityArrayTemp) {  
              if (\[cityModel.value isEqualToString:city\]) {  
                  districtArryTemp=\[NSMutableArray arrayWithArray:cityModel.children\];  
              }  
          }  
      }  
      else{  
          //直辖市  
          for (AreaModel \*cityModel in cityArrayTemp) {  
              if (\[cityModel.value isEqualToString:district\]) {  
                  value=cityModel.value;  
                  key=cityModel.key;  
              }  
          }  
      }  
  }  
  if (districtArryTemp) {  
      for (AreaModel \*provinceModel in districtArryTemp) {  
          if (\[provinceModel.value isEqualToString:district\]) {  
              value=provinceModel.value;  
              key=provinceModel.key;  
          }  
      }  
  }  
  self.keyCode=key;  
  \[self.checkCityButton setTitle:\[NSString stringWithFormat:@"%@%@%@",province,city,district\] forState:UIControlStateNormal\];

  }
  }

封装省市县 三级选择控件

#import

@interface AreaPickerCheckView : UIView

• (instancetype)initWithFrame:(CGRect)frame andDataSource:(NSArray *)dataSource dismissCompletion:(void (^)(BOOL isCancelClick , NSString *area , NSString *code))completion;

@end

#import "AreaPickerCheckView.h"
#import "AreaModel.h"

@interface AreaPickerCheckView()
{
NSArray *provinceArray;
NSArray *cityArray;
NSArray *areaArray;
void (^completionBlock)(BOOL isCancelClick , NSString *area , NSString *code);
}

@property(nonatomic,strong)NSArray *dataSource;
@property(nonatomic,strong)UIPickerView *pickerView;

@end

@implementation AreaPickerCheckView

• (instancetype)initWithFrame:(CGRect)frame andDataSource:(NSArray *)dataSource dismissCompletion:(void (^)(BOOL, NSString *, NSString *))completion
  {
  self = [super initWithFrame:frame];
  if (self) {
  completionBlock = [completion copy];
  self.dataSource = dataSource;
  [self createUI];// Initialization code
  }
  return self;
  }

• (void)createUI {

  provinceArray = self.dataSource;

  AreaModel *model = [self.dataSource firstObject];

  cityArray = model.children;

  AreaModel *model1 = [model.children firstObject];

  areaArray = model1.children;

  self.pickerView = [[UIPickerView alloc]initWithFrame:CGRectMake(0, 25, self.frame.size.width, self.frame.size.height-25)];
  self.pickerView.dataSource = self;
  self.pickerView.delegate = self;
  [self addSubview:self.pickerView];

  UIButton *confirmBtn = [UIButton buttonWithType:UIButtonTypeCustom];
  confirmBtn.frame = CGRectMake(Main_Screen_Width - 50, 5, 40, 20);
  [confirmBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
  [confirmBtn setTitle:@"确定" forState:UIControlStateNormal];
  [confirmBtn addTarget:self action:@selector(btnClick:) forControlEvents:UIControlEventTouchUpInside];
  confirmBtn.tag = 100;
  [self addSubview:confirmBtn];

  UIButton *cancelBtn = [UIButton buttonWithType:UIButtonTypeCustom];
  cancelBtn.frame = CGRectMake(10, 5, 40, 20);
  cancelBtn.tag = 101;
  [cancelBtn addTarget:self action:@selector(btnClick:) forControlEvents:UIControlEventTouchUpInside];
  [cancelBtn setTitle:@"取消" forState:UIControlStateNormal];
  [cancelBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
  [self addSubview:cancelBtn];

}

#pragma mark dataSouce

• (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
  return 3;
  }

• (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component {
  if (component == 0) {
  return provinceArray.count;
  }else if (component == 1) {
  return cityArray.count;
  }
  return areaArray.count;
  }
  #pragma mark delegate

• (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
  AreaModel *model = nil;
  if (component == 0) {
  model = provinceArray[row];
  }else if (component == 1) {
  model = cityArray[row];
  }else if (component == 2) {
  model = areaArray[row];
  }
  return model.value;
  }

• (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
  if (component == 0) {
  AreaModel *model = provinceArray[row];
  cityArray = model.children;
  areaArray = [[cityArray firstObject] children];

  \[self.pickerView reloadComponent:1\];  
  \[self.pickerView reloadComponent:2\];

  }else if (component == 1) {
  AreaModel *model = cityArray[row];
  areaArray = model.children;
  [self.pickerView reloadComponent:2];
  }
  }

• (void)btnClick:(UIButton *)btn {
  BOOL isCancel = NO;
  switch (btn.tag) {
  case 100:

      break;  
  case 101:  
      isCancel = YES;  
      completionBlock(YES,nil,nil);  
      return;  
      break;
  
  default:  
      break;  

  }

  NSString *str = nil;
  NSString *codeStr = nil;

  AreaModel *model = provinceArray[[self.pickerView selectedRowInComponent:0]];
  str = model.value;
  AreaModel *model1 = cityArray[[self.pickerView selectedRowInComponent:1]];
  str = [str stringByAppendingString:model1.value];
  codeStr = model1.key;
  if (areaArray.count > 0) {
  AreaModel *model2 = areaArray[[self.pickerView selectedRowInComponent:2]];
  str = [str stringByAppendingString:model2.value];
  codeStr = model2.key;
  }

  completionBlock(isCancel,str,codeStr);
  }

@end

在Controller中使用地理位置选择控件

@interface CityCheckController ()

{

NSString *_sessionKey;

NSString *_code;

AMapGeoPoint *point;

AMapReGeocodeSearchRequest *regeoRequest;

NSArray *provinceArray;

}

@property (weak, nonatomic) IBOutlet UITextField *areaTF;

@property(nonatomic,strong) MAMapView *mapView;

@property(nonatomic,strong) AMapSearchAPI *search;

- (void)viewDidLoad {
[super viewDidLoad];

NSArray \*models = \[AreaModel objectArrayWithFilename:@"area.plist"\];  
provinceArray=models;  
AreaPickerCheckView \*picker = \[\[AreaPickerCheckView alloc\]initWithFrame:CGRectMake(0, 0, Main\_Screen\_Width, 216) andDataSource:models dismissCompletion:^(BOOL isCancelClick, NSString \*area, NSString \*code) {  
    \[self.areaTF resignFirstResponder\];  
    if (isCancelClick) {  
        return;  
    }else{  
        self.areaTF.text = area;  
        \_code = code;  
    }  
}\];  
self.areaTF.inputView = picker;  
\[self initMap\];

}

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