Question

添加了额外代码

我是xcode的新手。我已经设法在我的地图上以各种不同的颜色创建注释。我想做的是将每个注释引导到具有公开按钮的新位置。我已经实现了一个右箭头公开按钮，我需要知道的是我如何将其链接起来，以便每个注释将导致我选择的不同视图控制器。这是我在MapViewController实现上的当前代码。

MainMapViewController.m

#import "MainMapViewController.h"
#import "LocationAnnotation.h"

@interface MainMapViewController ()


@end

//Totnes Main Centre Coordinates
#define Totnes_LATITUDE 50.433741
#define Totnes_LONGITUDE -3.685797

//The Dartmouth Inn Coordinates
#define DARTMOUTH_INN_LATITUDE 50.430036;
#define DARTMOUTH_INN_LONGITUDE -3.683873;

//Pub Offers Co-Ordinates

#define TheKingBill_LATITUDE 50.431379
#define TheKingBill_LONGITUDE -3.685495

#define TheSevenStars_LATITUDE 50.431045
#define TheSevenStars_LONGITUDE -3.682945

#define TheLordNelson_LATITUDE 50.430931
#define TheLordNelson_LONGITUDE -3.683644

//Span
#define THE_SPAN 0.01f;


@implementation MainMapViewController

@synthesize mainMapView;

- (void)viewDidLoad
{
    [super viewDidLoad];

    //Set Delegate
    mainMapView.delegate = self;

    //Create the region
    MKCoordinateRegion myRegion;

    //Centre
    CLLocationCoordinate2D centre;
    centre.latitude = Totnes_LATITUDE;
    centre.longitude = Totnes_LONGITUDE;

    //Span
    MKCoordinateSpan span;
    span.latitudeDelta = THE_SPAN;
    span.longitudeDelta = THE_SPAN;

    myRegion.center = centre;
    myRegion.span = span;


    //Set The Map View
    [mainMapView setRegion:myRegion animated:YES];


    //Annotation

    NSMutableArray * locations = [[NSMutableArray alloc] init];
    LocationAnnotation * myAnn;

    //The King Bill Annotation
    myAnn = [[LocationAnnotation alloc] initWithTitle:@"The King Bill"
                                          andSubtitle:@"Another Pub In Town"
                                        andCoordinate:CLLocationCoordinate2DMake(TheKingBill_LATITUDE, TheKingBill_LONGITUDE)
                                                andID:1];
    [locations addObject:myAnn];

    //The Seven Stars Annotations
    myAnn = [[LocationAnnotation alloc] initWithTitle:@"The Royal Seven Stars Hotel"
                                          andSubtitle:@"Hotel In Town"
                                        andCoordinate:CLLocationCoordinate2DMake(TheSevenStars_LATITUDE, TheSevenStars_LONGITUDE)
                                                andID:2];
    [locations addObject:myAnn];

    //The Lord Nelson Annotations
    myAnn = [[LocationAnnotation alloc] initWithTitle:@"The Lord Nelson"
                                          andSubtitle:@"Great Pub In Centre of Town"
                                        andCoordinate:CLLocationCoordinate2DMake(TheLordNelson_LATITUDE, TheLordNelson_LONGITUDE)
                                                andID:3];
    [locations addObject:myAnn];

    [self.mainMapView addAnnotations:locations];

}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}


#pragma mark - MKMapViewDelegate

- (MKAnnotationView *) mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>) annotation {
    if ([annotation isKindOfClass:[MKUserLocation class]])
        return nil;

    MKPinAnnotationView *annView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"pin"];

    UIButton *rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
    annView.rightCalloutAccessoryView = rightButton;


    int annId = ((LocationAnnotation *)annotation).idNumber;
    annView.pinColor = (annId == 1) ? MKPinAnnotationColorPurple
    : (annId == 2) ? MKPinAnnotationColorGreen
    : MKPinAnnotationColorRed;
    annView.canShowCallout = YES;
    return annView;


}


@end

Answer 1

如您所见，您的右键是UIButton类型。因为这个事实你可以addTarget：

[rightButton addTarget:self action:@selector(YourMethod) forControlEvents:UIControlEventTouchUpInside];

用户点按rightButton YourMethod后即可启动。因此，对于每个图钉，您可以使用不同的方法添加不同的按钮，方法与设置AnnotationColor

的方式相同

int annId = ((LocationAnnotation *)annotation).idNumber;
if (annId == 1)
{
    annView.pinColor = MKPinAnnotationColorPurple;
    UIButton *rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
    annView.rightCalloutAccessoryView = rightButton;
    [rightButton addTarget:self action:@selector(MethodWhereYouWillFireYouNewViewController) forControlEvents:UIControlEventTouchUpInside];

}
else if (annId == 2)
{
    //similar as above
}

Answer 2

将右键按钮的标签设置为annID。

rightButton.tag = annId;

然后将Selector分配给touchup事件： [rightButton addTarget：self action：@selector（YourMethod :) forControlEvents：UIControlEventTouchUpInside];

在YourMethod中，您可以使用发件人标记导航到不同的视图

- （无效）YourMethod：（的UIButton *）发送方 { 如果（sender.tag == 1）

{

//推送viewcontroller1

}

否则

{

// push viewcontroller

}

返回; }

Answer 3

检查：

- （无效）clickOnMapAnnotation：（的UIButton *）发送方

{

int AnnotationClicked = sender.tag;

if(AnnotationClicked ==1)
{
    //PushViewcontroller1
}
else
{
      //PushViewcontroller1
}

}

（MKAnnotationView *）mapView：（MKMapView *）mapView viewForAnnotation：（id）annotation {

if（[注释isKindOfClass：[MKUserLocation class]]）返回零;

MKPinAnnotationView * annView = [[MKPinAnnotationView alloc] initWithAnnotation：annotation reuseIdentifier：@“pin”];

int annId =（（LocationAnnotation *）annotation）.idNumber; annView.pinColor =（annId == 1）？ MKPinAnnotationColorPurple ：（annId == 2）？ MKPinAnnotationColorGreen ：MKPinAnnotationColorRed;

//我想要引导到新视图控制器的详细信息披露按钮。

UIButton * rightButton = [UIButton buttonWithType：UIButtonTypeDetailDisclosure]; [rightButton addTarget：self action：@selector（clickOnMapAnnotation :) forControlEvents：UIControlEventTouchUpInside]; rightButton.tag = annId;

annView.rightCalloutAccessoryView = rightButton;

annView.canShowCallout = YES;

返回annView;

}

详细信息披露指标MKMap到自定义视图控制器

3 个答案: