📅  最后修改于: 2020-12-08 06:23:08             🧑  作者: Mango
地图对我们找到位置始终很有帮助。使用MapKit框架将地图集成到iOS中。
步骤1-创建一个简单的基于视图的应用程序。
步骤2-选择您的项目文件,然后选择目标,然后添加MapKit.framework。
步骤3-我们还应该添加Corelocation.framework。
步骤4-将MapView添加到ViewController.xib,并创建一个ibOutlet,并将其命名为mapView。
步骤5-通过选择文件→新建→文件…→选择Objective C类来创建一个新文件,然后单击下一步。
步骤6-将类命名为MapAnnotation,将“ sub class of”作为NSObject。
步骤7-选择创建。
步骤8-更新MapAnnotation.h如下-
#import
#import
@interface MapAnnotation : NSObject
@property (nonatomic, strong) NSString *title;
@property (nonatomic, readwrite) CLLocationCoordinate2D coordinate;
- (id)initWithTitle:(NSString *)title andCoordinate:
(CLLocationCoordinate2D)coordinate2d;
@end
步骤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
步骤10-更新ViewController.h如下-
#import
#import
#import
@interface ViewController : UIViewController {
MKMapView *mapView;
}
@end
步骤11-更新ViewController.m如下-
#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 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
运行应用程序时,将得到如下所示的输出-
当我们向上滚动地图时,将得到如下所示的输出-