#import <UIKit/UIKit.h>

 @interface AppDelegate : UIResponder <UIApplicationDelegate>

 @property (strong, nonatomic) UIWindow *window;

 @end

 #import "AppDelegate.h"

 #import "RootViewController.h"

 @interface AppDelegate ()

 @end

 @implementation AppDelegate

 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

     self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

     // Override point for customization after application launch.

     self.window.backgroundColor = [UIColor whiteColor];

     self.window.rootViewController = [[RootViewController alloc] init];

     [self.window makeKeyAndVisible];

     return YES;

 }

 @end

 #import <UIKit/UIKit.h>

 @interface RootViewController : UIViewController

 @end

 #import "RootViewController.h"

 #import <MapKit/MapKit.h>

 #import "YXYCAnation.h"

 @interface RootViewController ()<MKMapViewDelegate>

 @end

 @implementation RootViewController

 - (void)viewDidLoad {

     [super viewDidLoad];

     // 初始化MKMapView

     MKMapView *mapView = [[MKMapView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

     // 设置代理

     mapView.delegate = self;

     // 设置显示当前位置

     mapView.showsUserLocation = YES;

     // 设置地图显示类型

     mapView.mapType = MKMapTypeStandard;

     // 经纬度

     CLLocationCoordinate2D coord2D = {23.117000,113.27500};

     // 显示范围精度

     MKCoordinateSpan span = {0.01,0.01};

     // 显示区域

     MKCoordinateRegion region = {coord2D,span};

     // 给地图设置显示区域

     [mapView setRegion:region animated:YES];

     [self.view addSubview:mapView];

     // 创建anation对象

     CLLocationCoordinate2D showCoord = {23.117000,113.27500};

     YXYCAnation *anation1 = [[YXYCAnation alloc] initWithCoordinate2D:showCoord];

     anation1.title = @"越秀公园";

     anation1.subtitle = @"小标题";

     [mapView addAnnotation:anation1];

 }

 #pragma mark -MKAnnotationView delegate-

 - (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation

 {

     static NSString *identifier = @"Annotion";

     MKAnnotationView *annotationView = [mapView dequeueReusableAnnotationViewWithIdentifier:identifier];

     if (annotationView == nil) {

         annotationView = [[MKAnnotationView alloc] initWithAnnotation:annotationView reuseIdentifier:identifier];

         annotationView.image = [UIImage imageNamed:@""];

     }

     return annotationView;

 }

 - (void)buttonAction:(UIButton *)sender

 {

     NSLog(@"显示公园简介");

 }

 @end

 #import <Foundation/Foundation.h>

 #import <MapKit/MapKit.h>

 @interface YXYCAnation : NSObject<MKAnnotation>

 @property (nonatomic, assign) CLLocationCoordinate2D coordinate;

 @property (nonatomic, copy) NSString *title;

 @property (nonatomic, copy) NSString *subtitle;

 - (id)initWithCoordinate2D:(CLLocationCoordinate2D)coordinate;

 @end

 #import "YXYCAnation.h"

 @implementation YXYCAnation

 - (id)initWithCoordinate2D:(CLLocationCoordinate2D)coordinate

 {

     self = [super init];

     if (self != nil) {

         _coordinate = coordinate;

     }

     return self;

 }

 @end