我使用MKMapView创建了一个地图视图。一切正常，但我得到的地图和我应该得到的地图有所不同。在我看来，地图即将到来，但我猜不正确。请看看区别，让我知道是什么问题。谢谢这是我的ViewController.m
#import "ViewController.h"
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
mapView=[[MKMapView alloc]initWithFrame:CGRectMake(0, 0, 320, 400)];
mapView.delegate=self;
[mapView setMapType:MKMapTypeStandard];
[mapView setZoomEnabled:YES];
[mapView setScrollEnabled:YES];
MKCoordinateRegion region = { {0.0, 0.0},{0.0,0.0}};
region.center.latitude = 12.9667;
region.center.longitude = 77.5833;
region.span.longitudeDelta = 0.01f;
region.span.latitudeDelta = 0.01f;
[mapView setRegion:region animated:YES];
[self.view addSubview:mapView];
DisplayMap *annotation = [[DisplayMap alloc]init];
annotation.title = @" Bangalore";
annotation.subtitle = @"Silver Jublee Park";
annotation.coordinate = region.center;
[mapView addAnnotation:annotation];
}
-(MKAnnotationView *)mapView:(MKMapView *)mV viewForAnnotation:
(id <MKAnnotation>)annotation
{
MKPinAnnotationView *pinView = nil;
if(annotation != mapView.userLocation)
{
static NSString *defaultPinID = @"com.invasivecode.pin";
pinView = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:defaultPinID];
if ( pinView == nil ) pinView = [[[MKPinAnnotationView alloc]
initWithAnnotation:annotation reuseIdentifier:defaultPinID] autorelease];
pinView.pinColor = MKPinAnnotationColorRed;
pinView.canShowCallout = YES;
pinView.animatesDrop = YES;
}
return pinView;
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
}
@end
@implementation DisplayMap
@synthesize coordinate,title,subtitle;
-(void)dealloc{
[title release];
[subtitle release];
[super dealloc];
}
@end
视图控制器.h
#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>
@interface ViewController : UIViewController<MKMapViewDelegate> {
MKMapView *mapView;
}
@end
@class DisplayMap;
@interface DisplayMap : NSObject <MKAnnotation> {
CLLocationCoordinate2D coordinate;
NSString *title;
NSString *subtitle;
}
@property (nonatomic, assign) CLLocationCoordinate2D coordinate;
@property (nonatomic, copy) NSString *title;
@property (nonatomic, copy) NSString *subtitle;
@end
我得到以下地图
我应该得到以下地图
