1.导入头文件 <MapKit/MapKit.h>
如果使用代码创建,会自动导入MapKit框架,如果使用Xib/SB,需要手动导入MapKit.framework框架
2.请求授权(记得配置info.plist文件)
如果忘记请求授权,控制台会弹出错误:
Trying to start MapKit location updates without prompting for location authorization. Must call -[CLLocationManager requestWhenInUseAuthorization] or -[CLLocationManager requestAlwaysAuthorization] first.
#import "ViewController.h"
#import <MapKit/MapKit.h>
@interface ViewController () <MKMapViewDelegate>
// MapView
@property (weak, nonatomic) IBOutlet MKMapView *mapView;
// 定位管理者
@property (nonatomic,strong) CLLocationManager *manager;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// 请求授权
self.manager = [[CLLocationManager alloc]init];
if ([self.manager respondsToSelector:@selector(requestWhenInUseAuthorization)]) {
[self.manager requestWhenInUseAuthorization];
}
// 地图定位 设置用户的跟踪模式
/*
MKUserTrackingModeNone = 0, // the user's location is not followed
MKUserTrackingModeFollow, // the map follows the user's location
MKUserTrackingModeFollowWithHeading __TVOS_PROHIBITED, // the map follows the user's location and heading
*/
self.mapView.userTrackingMode = MKUserTrackingModeFollow;
// 设置代理
self.mapView.delegate = self;
}
/**
* 已经更新用户的位置后调用
*
* @param mapView 地图视图
* @param userLocation 定位大头针模型
*/
- (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation{
// 创建地理编码者
CLGeocoder *geocoder = [[CLGeocoder alloc] init];
[geocoder reverseGeocodeLocation:self.mapView.userLocation.location completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {
if (placemarks.count == 0 || error) {
return ;
}
CLPlacemark *pm = placemarks.lastObject;
//大头针视图不是由开发者来添加的,大头针视图的数据是由开发者来设置的,通过大头针视图的大头针模型来设置 定位大头针的模型类为MKUserLocation
//2.4设置数据
self.mapView.userLocation.title = pm.locality;
self.mapView.userLocation.subtitle = pm.name;
}];
}
@end
