1

我是 Xcode 的新手，基本上我有一个MKMapView并且想为我的每个引脚添加单独的颜色。我目前已经用注释标记了别针。

位置注释.h：

@interface LocationAnnotation : NSObject <MKAnnotation>

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

@end

LocationAnnotation.m:

#import "LocationAnnotation.h"

@implementation LocationAnnotation
@synthesize coordinate, title, subtitle;

@end

我的每个坐标在 MainMapViewController.h 中都是这样的：

#define TheKingBill_LATITUDE 50.431379
#define TheKingBill_LONGITUDE -3.685495

 //Annotation

NSMutableArray * locations = [[NSMutableArray alloc] init];
CLLocationCoordinate2D location;
LocationAnnotation * myAnn;

//The King Bill Annotation
myAnn = [[LocationAnnotation alloc] init];
location.latitude = TheKingBill_LATITUDE;
location.longitude = TheKingBill_LONGITUDE;
myAnn.coordinate = location;
myAnn.title = @"The King Bill";
myAnn.subtitle = @"Another Pub In Town";
[locations addObject:myAnn];

 //The Seven Stars Annotations
myAnn = [[LocationAnnotation alloc] init];
location.latitude = TheSevenStars_LATITUDE;
location.longitude = TheSevenStars_LONGITUDE;
myAnn.coordinate = location;
myAnn.title = @"The Royal Seven Stars Hotel";
myAnn.subtitle = @"Hotel In Town";
[locations addObject:myAnn];

 [self.MainMapView addAnnotations:locations];

关于我需要添加什么以使每个图钉颜色不同的任何想法？

谢谢！

好的，现在我的其他地图有问题，该地图链接到此 LocationAnnotation 文件。我还想为此添加颜色图钉。如果新代码与我以前的 mapviewcontroller 相同，那将是理想的。这是代码...

LocationAnnotation.h

#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>
#import <CoreLocation/CoreLocation.h>

@interface LocationAnnotation : NSObject <MKAnnotation>

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

- (id)initWithTitle:(NSString *)ttl andSubtitle:(NSString *)subttl andCoordinate:(CLLocationCoordinate2D)c2d andID:(int)idN;

@end

LocationAnnotation.m

    #import "LocationAnnotation.h"

    @implementation LocationAnnotation

    @synthesize coordinate, title, subtitle, idNumber;

    - (id)initWithTitle:(NSString *)ttl andSubtitle:(NSString *)subttl andCoordinate:(CLLocationCoordinate2D)c2d andID:(int)idN
    {
        self = [super init];

        if (self)
        {
            self.title = ttl;
            self.coordinate = c2d;
            self.subtitle = subttl;
            self.idNumber = idN;
        }

        return self;
    }

    @end

MapViewController.h

    #import <UIKit/UIKit.h>
    #import <MapKit/MapKit.h>

    @interface MapViewController : UIViewController

    @property (weak, nonatomic) IBOutlet MKMapView *ClientMapView;

    @end

MapViewController.m

#import "MapViewController.h"
#import "LocationAnnotation.h"

@interface MapViewController ()

@end


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

//Span
#define THE_SPAN 0.004f;



@implementation MapViewController
@synthesize ClientMapView;


- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];


    //Create the region
    MKCoordinateRegion myRegion;

    //Centre
    CLLocationCoordinate2D centre;
    centre.latitude = DARTMOUTH_INN_LATITUDE;
    centre.longitude = DARTMOUTH_INN_LONGITUDE;

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

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

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


    //Annotation

    //1. Create A Coordinate for use with annotation

    CLLocationCoordinate2D dartLocation;
    dartLocation.latitude = DARTMOUTH_INN_LATITUDE;
    dartLocation.longitude = DARTMOUTH_INN_LONGITUDE;


    LocationAnnotation * myAnnotation = [LocationAnnotation alloc];
    myAnnotation.coordinate = dartLocation;
    myAnnotation.title = @"The Dartmouth Inn";

    [self.ClientMapView addAnnotation:myAnnotation];




}

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

@end
4

1 回答 1

1

好的，我们来了，您的代码经过修改：

LocationAnnotation.h

#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>

@interface LocationAnnotation : NSObject <MKAnnotation>

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

- (id)initWithTitle:(NSString *)ttl andSubtitle:(NSString *)subttl andCoordinate:(CLLocationCoordinate2D)c2d andID:(int)idN;

@end

LocationAnnotation.m

#import "LocationAnnotation.h"

@implementation LocationAnnotation

@synthesize coordinate, title, subtitle, idNumber;

- (id)initWithTitle:(NSString *)ttl andSubtitle:(NSString *)subttl andCoordinate:(CLLocationCoordinate2D)c2d andID:(int)idN
{
    self = [super init];

    if (self)
    {
        self.title = ttl;
        self.coordinate = c2d;
        self.subtitle = subttl;
        self.idNumber = idN;
    }

    return self;
}

@end

MainMapViewController.h

#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>

@interface MainMapViewController : UIViewController <MKMapViewDelegate>

@property (weak, nonatomic) IBOutlet MKMapView *mainMapView;

@end

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"];

    int annId = ((LocationAnnotation *)annotation).idNumber;
    annView.pinColor = (annId == 1) ? MKPinAnnotationColorPurple
                                    : (annId == 2) ? MKPinAnnotationColorGreen
                                                   : MKPinAnnotationColorRed;
    annView.canShowCallout = YES;
    return annView;
}
于 2013-04-08T09:57:07.877 回答