[IOS]地图的简单应用

操作步骤： 1.首先创建一个项目，在xib的view中添加一个MapVIew控件，并且导入MapKit.framework和CoreLocation.frameword框架。

操作步骤： 1.首先创建一个项目，在xib的view中添加一个MapVIew控件，并且导入MapKit.framework和CoreLocation.frameword框架。 2.实现ViewController的代码： ViewController.h:
#import CoreLocation/CoreLocation.h @interface DXWViewController : UIViewController CLLocationManagerDelegate @property (retain, nonatomic) IBOutlet MKMapView *mapview; @property(retain,nonatomic)CLLocationManager *manager; @property(retain,nonatomic)CLLocation *location; @property (retain, nonatomic) IBOutletCollection(UILabel) NSArray *labels;

ViewController.m:

#import "DXWViewController.h"

#import "Place.h"

@interface DXWViewController ()

@implementation DXWViewController

- (void)viewDidLoad

 [super viewDidLoad];

 self.manager = [[CLLocationManager alloc] init];

 self.manager.delegate = self;

 //精度

 self.manager.desiredAccuracy = kCLLocationAccuracyBest;

 [self.manager startUpdatingLocation];

 self.mapview.showsUserLocation = YES;


-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations

 self.location = [locations objectAtIndex:0];

 [self.labels[0] setText:[NSString stringWithFormat:@"%f\u00B0",self.location.coordinate.longitude]];

 [self.labels[1] setText:[NSString stringWithFormat:@"%f\u00B0",self.location.coordinate.longitude]];

 [self.labels[2] setText:[NSString stringWithFormat:@"%gm",self.location.horizontalAccuracy]];

 [self.labels[3] setText:[NSString stringWithFormat:@"%gm",self.location.altitude]];

 [self.labels[4] setText:[NSString stringWithFormat:@"%gm",self.location.verticalAccuracy]];

 Place *place = [[Place alloc] init];

 place.coordinate = self.location.coordinate;

 place.title = @"Title";

 place.subtitle = @"subTitle";

 [self.mapview addAnnotation:place];

 //设置精度范围

 MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(place.coordinate, 1000, 1000);

 [self.mapview setRegion:region animated:YES];

- (void)didReceiveMemoryWarning

 [super didReceiveMemoryWarning];

- (void)dealloc {

 [_mapview release];

 [_labels release];

 [super dealloc];

@end

3.创建大头针的类： Place.h:

#import Foundation/Foundation.h 

#import MapKit/MapKit.h 

@interface Place : NSObject MKAnnotation 

@property(copy,nonatomic)NSString *title;

@property(copy,nonatomic)NSString *subtitle;

@property(assign,nonatomic)CLLocationCoordinate2D coordinate;

@end

蓬莱仙羽 麦子学院讲师，游戏蛮牛专栏作家，CSDN博客专家，热爱游戏开发，热爱Coding!