1 #import "ViewController.h"
 2
 3 #import <MapKit/MapKit.h>
 4 #import <CoreLocation/CoreLocation.h>
 5 #import "myAnotation.h"
 6
 7 @interface ViewController ()<MKMapViewDelegate>
 8 ///定位管理器
 9 @property (nonatomic, strong) CLLocationManager *manager;
10 ///显示地图的视图
11 @property (nonatomic, strong) MKMapView *mapView;
12
13 @end
14
15 @implementation ViewController
16
17 - (void)viewDidLoad {
18     [super viewDidLoad];
19
20     [self createMapView];
21
22 }
23
24 #pragma mark - 创建地图视图
25 - (void)createMapView {
26    //创建地图视图，添加到当前视图
27     self.mapView = [[MKMapView alloc] initWithFrame:[UIScreen mainScreen].bounds];
28     [self.view addSubview:self.mapView];
29     //设置代理
30     self.mapView.delegate = self;
31     //定位
32     self.manager = [[CLLocationManager alloc] init];
33     //判断隐私并授权
34     if (![CLLocationManager locationServicesEnabled]) {
35         NSLog(@"当前设备的定位不可用");
36     }
37     if ([CLLocationManager authorizationStatus] != kCLAuthorizationStatusAuthorizedWhenInUse) {
38         //注意设置info.plist（参照上一篇博客CoreLocation框架）
39         [self.manager requestWhenInUseAuthorization];
40     }
41     //设置地图的定位追踪，枚举值，根据实际需求选取枚举值
42     self.mapView.userTrackingMode = MKUserTrackingModeFollow;
43     //设置地图的类型
44     self.mapView.mapType = MKMapTypeStandard;
45
46     //添加大头针
47     [self addAnotation];
48
49 }
50 #pragma mark - 添加大头针方法的响应
51 - (void)addAnotation {
52     //设置经纬度
53     CLLocationCoordinate2D location = CLLocationCoordinate2DMake(40, 116);
54     myAnotation *anotation = [[myAnotation alloc] init];
55     anotation.coordinate = location;
56     anotation.title = @"北京";
57     anotation.subtitle = @"朝阳区";
58     anotation.image = [UIImage imageNamed:@"11.png"];
59
60     [self.mapView addAnnotation:anotation];
61
62 }
63
64 #pragma mark - 代理方法
65 - (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation {
66     NSLog(@"====%@", userLocation);
67 }
68 #pragma mark - 实现自定义大头针的代理方法(显示大头针的时候才会调用的方法)
69 - (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation {
70     //判断是否是自定义的大头针
71     if ([annotation isKindOfClass:[myAnotation class]]) {
72         static NSString *identifier = @"Annotation";
73         MKAnnotationView *annotationView = [mapView dequeueReusableAnnotationViewWithIdentifier:identifier];
74         if (!annotationView) {
75             annotationView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:identifier];
76
77             //允许用户交互
78             annotationView.canShowCallout = YES;
79             //设置偏移量
80             annotationView.calloutOffset = CGPointMake(0, 2);
81             //设置左视图
82             annotationView.leftCalloutAccessoryView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"11.png"]];
83
84         }
85
86         //修改大头针视图
87         annotationView.annotation = annotation;
88         annotationView.image = ((myAnotation *)annotation).image;
89
90         return annotationView;
91
92     }else {
93         return nil;
94     }
95 }
96 @end

 1 #import <Foundation/Foundation.h>
 2 #import <MapKit/MapKit.h>
 3 @interface myAnotation : NSObject<MKAnnotation>
 4 //大头针模型；重写协议中的三个属性coordinate（标记位置）、title（标题）、subtitle（子标题）三个属性
 5 ///坐标
 6 @property (nonatomic) CLLocationCoordinate2D coordinate;
 7 ///标题
 8 @property (nonatomic, copy) NSString *title;
 9 ///子标题
10 @property (nonatomic, copy) NSString *subtitle;
11 ///自定义大头针（换成图片）
12 @property (nonatomic, strong) UIImage *image;
13
14 @end