IOS地图开发
简介
IOS地图帮助我们定位位置，IOS地图使用 MapKit 框架。
实例步骤
1.创建一个简单的 View based application
2.选择项目文件，然后选择目标，然后添加MapKit.framework.
3.添加 Corelocation.framework
4.向 ViewController.xib 添加地图查看和创建 ibOutlet 并且命名为mapView。
5.通过"File-> New -> File... -> "选择 Objective C class创建一个新的文件，单击下一步
6."sub class of"为 NSObject，类作命名为MapAnnotation
7.选择创建
8.更新MapAnnotation.h ，如下所示
#import <Foundation/Foundation.h>#import <MapKit/MapKit.h>@interface MapAnnotation : NSObject<MKAnnotation>@property (nonatomic, strong) NSString *title;@property (nonatomic, readwrite) CLLocationCoordinate2D coordinate;- (id)initWithTitle:(NSString *)title andCoordinate: (CLLocationCoordinate2D)coordinate2d;@end
9.更新MapAnnotation.m ，如下所示
#import "MapAnnotation.h"@implementation MapAnnotation-(id)initWithTitle:(NSString *)title andCoordinate: (CLLocationCoordinate2D)coordinate2d{
self.title = title; self.coordinate =coordinate2d; return self;}@end
10.更新ViewController.h ，如下所示
#import <UIKit/UIKit.h>#import <MapKit/MapKit.h>#import <CoreLocation/CoreLocation.h>@interface ViewController : UIViewController<MKMapViewDelegate>{ MKMapView *mapView;}@end
11.更新ViewController.m ，如下所示
#import "ViewController.h"#import "MapAnnotation.h"@interface ViewController ()@end@implementation ViewController- (void)viewDidLoad{ [super viewDidLoad];
mapView = [[MKMapView alloc]initWithFrame: CGRectMake(10, 100, 300, 300)];
mapView.delegate = self;
mapView.centerCoordinate = CLLocationCoordinate2DMake(37.32, -122.03);
mapView.mapType = MKMapTypeHybrid; CLLocationCoordinate2D location;
location.latitude = (double) 37.332768;
location.longitude = (double) -122.030039; // Add the annotation to our map view MapAnnotation *newAnnotation = [[MapAnnotation alloc]
initWithTitle:@"Apple Head quaters" andCoordinate:location]; [mapView addAnnotation:newAnnotation]; CLLocationCoordinate2D location2;
location2.latitude = (double) 37.35239;
location2.longitude = (double) -122.025919; MapAnnotation *newAnnotation2 = [[MapAnnotation alloc]
initWithTitle:@"Test annotation" andCoordinate:location2]; [mapView addAnnotation:newAnnotation2]; [self.view addSubview:mapView];}// When a map annotation point is added, zoom to it (1500 range)- (void)mapView:(MKMapView *)mv didAddAnnotationViews:(NSArray *)views{ MKAnnotationView *annotationView = [views objectAtIndex:0];
id <MKAnnotation> mp = [annotationView annotation]; MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance ([mp coordinate], 1500, 1500); [mv setRegion:region animated:YES]; [mv selectAnnotation:mp animated:YES];}- (void)didReceiveMemoryWarning{ [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated.}@end
输出
运行应用程序时，输出结果如下
当我们向上滚动地图时，输出结果如下
