iOS 原生地图定位，视图中心加大头针，地理位置返编码

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info.plist  按需配置
模拟器 地理位置在国外的地理位置返编码没有办法获取

Privacy - Location Always and When In Use Usage Description

Privacy - Location Always Usage Description

Privacy - Location When In Use Usage Description

.h

#import <UIKit/UIKit.h>NS_ASSUME_NONNULL_BEGINtypedef void(^BackBlock)(double lat,double lot,NSString *city);@interface MapVC : UIViewController@property(nonatomic,copy)BackBlock backBlock;@endNS_ASSUME_NONNULL_END

.m

#import "MapVC.h"
#import <CoreLocation/CoreLocation.h>
#import <MapKit/MapKit.h>
@interface MapVC ()
<
CLLocationManagerDelegate,
MKMapViewDelegate
>
@property(nonatomic,strong)MKMapView *mapView;
/// 定位管理器
@property(nonatomic,strong)CLLocationManager *locationManager;
/// 移动后的位置标记
@property(nonatomic,strong)CLPlacemark *place;/ 放大缩小用
//@property (nonatomic) MKCoordinateRegion region;
@end@implementation MapVC- (void)viewDidLoad {[super viewDidLoad];// Do any additional setup after loading the view.[self.view addSubview:self.mapView];[self.locationManager startUpdatingLocation];
}-(void)viewWillDisappear:(BOOL)animated{[super viewWillDisappear:animated];if (self.backBlock){self.backBlock(self.place.location.coordinate.latitude, self.place.location.coordinate.longitude,self.place.name);}
}#pragma mark ————————— 地图位置更新 —————————————
- (void)mapView:(MKMapView *)mapView regionDidChangeAnimated:(BOOL)animated
{MKCoordinateRegion region;CLLocationCoordinate2D centerCoordinate = mapView.region.center;region.center = centerCoordinate;NSLog(@" 经纬度 %f,%f",centerCoordinate.latitude, centerCoordinate.longitude);CLLocation *location = [[CLLocation alloc]initWithLatitude:centerCoordinate.latitude longitude:centerCoordinate.longitude];[self cityNameFromLoaction:location block:^(CLPlacemark *place, NSString *city) {}];}#pragma mark-CLLocationManagerDelegate
/**
*  更新到位置之后调用
*
*  @param manager   位置管理者
*  @param locations 位置数组
*/
-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:( NSArray *)locations
{NSLog(@"定位到了");//停止位置更新[manager stopUpdatingLocation];CLLocation *location = [locations firstObject];//位置更新后的经纬度CLLocationCoordinate2D theCoordinate =  location.coordinate;//设置地图显示的中心及范围MKCoordinateRegion theRegion;theRegion.center = theCoordinate;// 坐标跨度MKCoordinateSpan theSpan;theSpan.latitudeDelta = 0.01;theSpan.longitudeDelta = 0.01;theRegion.span = theSpan;[self.mapView setRegion:theRegion];[self cityNameFromLoaction:location block:^(CLPlacemark *place, NSString *city) {NSLog(@"位置：%@", place.name);}];
}#pragma mark ————————— 地理位置返编码 —————————————
-(void)cityNameFromLoaction:(CLLocation *)location block:(void(^)(CLPlacemark *place ,NSString *city))block
{__weak typeof(self) weakSelf = self;CLGeocoder *geocoder = [[CLGeocoder alloc]init];[geocoder reverseGeocodeLocation:location completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {if (!error){for (CLPlacemark *place in placemarks){weakSelf.place = place;NSString *city = place.name;// 设置地图显示的类型及根据范围进行显示  安放大头针[weakSelf addPointFromCoordinate:place.location.coordinate title:city];block(place ,place.name);}}else{NSLog(@"%@",error);}}];
}#pragma mark ————————— 长按添加大头针事件 —————————————
- ( void )lpgrClick:( UILongPressGestureRecognizer *)lpgr
{// 判断只在长按的起始点下落大头针if (lpgr.state == UIGestureRecognizerStateBegan ){// 首先获取点CGPoint point = [lpgr locationInView:self.mapView];// 将一个点转化为经纬度坐标CLLocationCoordinate2D center = [self.mapView convertPoint:point toCoordinateFromView:self.mapView];[self addPointFromCoordinate:center title:@"位置"];}
}#pragma mark ————————— 添加大头针 —————————————
-(void)addPointFromCoordinate:(CLLocationCoordinate2D)coordinatetitle:(NSString *)title
{NSLog(@"当前城市:%@" ,title);self.title = title;MKPointAnnotation *pinAnnotation = [[MKPointAnnotation alloc] init];pinAnnotation.coordinate = coordinate;pinAnnotation.title = title;[self.mapView removeAnnotations:self.mapView.annotations];[self.mapView addAnnotation:pinAnnotation];
}/***  授权状态发生改变时调用**  @param manager 位置管理者*  @param status  状态*/
-(void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status
{switch (status) {// 用户还未决定case kCLAuthorizationStatusNotDetermined:{NSLog(@"用户还未决定");break;}// 问受限case kCLAuthorizationStatusRestricted:{NSLog(@"访问受限");break;}// 定位关闭时和对此APP授权为never时调用case kCLAuthorizationStatusDenied:{// 定位是否可用（是否支持定位或者定位是否开启）if([CLLocationManager locationServicesEnabled]){NSLog(@"定位开启，但被拒");}else{NSLog(@"定位关闭，不可用");}break;}// 获取前后台定位授权case kCLAuthorizationStatusAuthorizedAlways:{//  case kCLAuthorizationStatusAuthorized: // 失效，不建议使用NSLog(@"获取前后台定位授权");break;}// 获得前台定位授权case kCLAuthorizationStatusAuthorizedWhenInUse:{NSLog(@"获得前台定位授权");break;}default:break;}
}//获取当前位置
-(CLLocationManager *)locationManager
{if (!_locationManager){CLLocationManager * locationManager = [[CLLocationManager alloc] init];locationManager.delegate = self ;//kCLLocationAccuracyBest:设备使用电池供电时候最高的精度locationManager.desiredAccuracy = kCLLocationAccuracyNearestTenMeters;locationManager.distanceFilter = 50.0f;if (([[[ UIDevice currentDevice] systemVersion] doubleValue] >= 8.0)){[locationManager requestAlwaysAuthorization];}_locationManager = locationManager;}return _locationManager;
}-(MKMapView *)mapView
{if (!_mapView){MKMapView *mapView = [[MKMapView alloc]init];// 接受代理mapView.delegate = self;mapView = [[MKMapView alloc]initWithFrame:self.view.bounds];mapView.zoomEnabled = YES ;mapView.showsUserLocation = YES ;mapView.scrollEnabled = YES ;mapView.delegate = self ;// 长按手势  长按添加大头针UILongPressGestureRecognizer *lpgr = [[UILongPressGestureRecognizer alloc]initWithTarget:self action: @selector (lpgrClick:)];[mapView addGestureRecognizer:lpgr];_mapView = mapView;}return _mapView;
}#pragma mark ————————— 放大事件 —————————————
- (void)addAct
{
//    CLLocationCoordinate2D centCoor = _region.center;
//    MKCoordinateSpan span = _region.span;
//    span.latitudeDelta *= 2;
//    span.longitudeDelta *= 2;
//    MKCoordinateRegion region = MKCoordinateRegionMake(centCoor, span);
//    [self.mapView setRegion:region];
}#pragma mark ————————— 缩小事件—————————————
- (void)minAct
{
//    CLLocationCoordinate2D centCoor = _region.center;
//    MKCoordinateSpan span = _region.span;
//    span.latitudeDelta *= 0.5;
//    span.longitudeDelta *= 0.5;
//    MKCoordinateRegion region = MKCoordinateRegionMake(centCoor, span);
//    [self.mapView setRegion:region];
}-(void)dealloc{NSLog(@"");
}
/*
#pragma mark - Navigation// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {// Get the new view controller using [segue destinationViewController].// Pass the selected object to the new view controller.
}
*/@end

调用

#import "MapVC.h"MapVC *vc = [[MapVC alloc]init];__weak typeof(self) weakSelf = self;vc.backBlock = ^(double lat, double lot, NSString * _Nonnull city) {DLog(@"%.15f = %.15f",lat,lot);weakSelf.lot = lot;weakSelf.lat = lat;weakSelf.title = city;};[self.navigationController pushViewController:vc animated:YES];

 

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