Question

我对Objective C编程很新。我有这个问题，我找不到解决方案，尽管有很多关于此的主题。

我得到了这些注释，这一切都完美无缺，直到我点击按钮并进入下一个视图..如何获取注释的标题，发送到我的新视图控制器，国家/地区？

·H：

@interface SCSecondViewController : UIViewController <MKMapViewDelegate> {

    IBOutlet MKMapView *mapView;
}

@property(nonatomic, retain) IBOutlet MKMapView *mapView;

@end

的.m：

@synthesize mapView;

- (void)viewDidLoad
 {
    [super viewDidLoad];
    [mapView setMapType:MKMapTypeStandard];
    [mapView setZoomEnabled:YES];
    [mapView setScrollEnabled:YES];
    [mapView setDelegate:self];

    MKCoordinateRegion bigBen = { {0.0, 0.0} , {0.0, 0.0} };
    bigBen.center.latitude = 51.50063;
    bigBen.center.longitude = -0.124629;
    bigBen.span.longitudeDelta = 0.02f;
    bigBen.span.latitudeDelta = 0.02f;
    [mapView setRegion:bigBen animated:YES];

    Annotation *ann1 = [[Annotation alloc] init];
    ann1.title = @"England";
    ann1.subtitle = @"Num_rows";
    ann1.coordinate = bigBen.center;
    [mapView addAnnotation:ann1];

    MKCoordinateRegion Bridge = { {0.0, 0.0} , {0.0, 0.0} };
    Bridge.center.latitude = 51.500809;
    Bridge.center.longitude = -0.120914;
    Bridge.span.longitudeDelta = 0.02f;
    Bridge.span.latitudeDelta = 0.02f;
    [mapView setRegion:Bridge animated:YES];

    Annotation *ann2 = [[Annotation alloc] init];
    ann2.title = @"Bridge";
    ann2.subtitle = @"Bridge";
    ann2.coordinate = Bridge.center;
    [mapView addAnnotation:ann2];

// Do any additional setup after loading the view, typically from a nib.
}
     -(MKAnnotationView *) mapView:(MKMapView *)mapView viewForAnnotation:        (id<MKAnnotation>)annotation {
       MKPinAnnotationView *MyPin = [[MKPinAnnotationView alloc]    initWithAnnotation:annotation reuseIdentifier:@"current"]; MyPin.pinColor =   MKPinAnnotationColorPurple;

    UIButton *advertButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
    [advertButton addTarget:self action:@selector(button:) forControlEvents:UIControlEventTouchUpInside];

     MyPin.rightCalloutAccessoryView = advertButton;
     MyPin.draggable = NO;
     MyPin.highlighted = YES;
     MyPin.animatesDrop = TRUE;
     MyPin.canShowCallout = YES;

     return MyPin;

 }

 -(void)button:(id)sender {

     UIViewController* Countries = [[UIViewController alloc] initWithNibName:@"Countries"    bundle:[NSBundle mainBundle]];
     [self.view addSubview:Countries.view];

}

annotation.h：

@interface Annotation : NSObject <MKAnnotation> {

    CLLocationCoordinate2D coordinate;
    NSString *title;
    NSString *subtitle;
}

 @property (nonatomic, assign) CLLocationCoordinate2D coordinate;
 @property (nonatomic, copy) NSString *title;
 @property (nonatomic, copy) NSString *subtitle;


 @end

annotation.m：

 @implementation Annotation

 @synthesize coordinate, title, subtitle;


 @end

欣赏各种帮助！我真的被困在这里......

iOS - 注释DetailDisclosureButton将变量发送到下一个视图

0 个答案: