iphone - 我的自定义 MKAnnotationView 不可点击

Question

我正在处理显示背景图像的自定义注释 View ，其中包含自定义图像。我的代码基于此:Custom MKAnnotationView with frame,icon and image而我的实际代码是:

    else if ([annotation isKindOfClass:[ImagePin class]]){
       static NSString *identifierImage = @"ImagePinLocation";
        MKAnnotationView *annotationImageView = (MKAnnotationView *) [self.mapView dequeueReusableAnnotationViewWithIdentifier:identifierImage];
       if(annotationImageView){
         return annotationImageView;
       }
       else {
            annotationImageView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:identifierImage];
            annotationImageView.canShowCallout = YES;

            annotationImageView.image = [UIImage imageNamed:@"image_bg_mappa"];

            UIImage *frame = [UIImage imageNamed:@"image_bg_mappa"];
            ImagePin *imagePinImage = annotation;
            NSLog(@"%@", [NSString stringWithFormat:@"%@", imagePinImage.image]);


            NSString *urlStringForImage = [NSString stringWithFormat:@"%@", imagePinImage.image];
            NSURL *urlForImage = [NSURL URLWithString:urlStringForImage];
            UIImageView *imageView = [[UIImageView alloc] init];

            [imageView setImageWithURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@", urlForImage]] placeholderImage:[UIImage imageNamed:@"avatar-placeholder.png"]];

            UIGraphicsBeginImageContext(CGSizeMake(annotationImageView.image.size.width, annotationImageView.image.size.height));

            [frame drawInRect:CGRectMake(0, 0, frame.size.width, frame.size.height)];
            [imageView.image drawInRect:CGRectMake(2, 2, 48, 38)]; // the frame your inner image

            annotationImageView.image = UIGraphicsGetImageFromCurrentImageContext();

            UIGraphicsEndImageContext();

            UIButton* rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
            [rightButton addTarget:self action:@selector(writeSomething:) forControlEvents:UIControlEventTouchUpInside];
            [rightButton setTitle:@"" forState:UIControlStateNormal];
            annotationImageView.canShowCallout = YES;
            annotationImageView.rightCalloutAccessoryView = rightButton;
            annotationImageView.enabled = YES;
        return annotationImageView;
        }
    }

然后我有两个方法:

(void)writeSomething {        
}

(void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control {    
}

但是:

1. 不显示我的右按钮标注(不显示按钮)
2. 我更喜欢在单击完整图像/注释时调用 mapView annotationView 方法。

我该怎么做？为什么当我点击注释时，它不调用我的 calloutAccessoryControlTapped 方法？在这张 map 中，我还有更多不同类型的引脚(mkpinannotation)，并且工作正常(方法 calloutAccessoryControlTapped 也可以很好地处理这些引脚)。问题出在哪里 ？谢谢大家，对不起我的英语不好(我正在学习)。

编辑:我的 viewForAnnotation 方法的完整代码:https://gist.github.com/anonymous/6224519e308d6bf56c4cMKPinAnnotation 工作正常。

编辑:这是我的 ImagePin.h

#import <Foundation/Foundation.h>
#import <MapKit/MapKit.h>
@interface ImagePin : NSObject <MKAnnotation>

- (id)initWithImage:(NSString*)image imagebeachId:(NSString*)imagebeachId coordinate:(CLLocationCoordinate2D)coordinate;
//- (MKMapItem*)mapItem;
@property (nonatomic, copy) NSString *imagebeachId;
@property (nonatomic, copy) NSString *image;
@property (nonatomic, assign) CLLocationCoordinate2D theCoordinate;
@end

还有我的ImagePin.m

#import "ImagePin.h"
#import <AddressBook/AddressBook.h>

@interface ImagePin ()

@end

@implementation ImagePin
@synthesize image = _image;
@synthesize imagebeachId = _imagebeachId;
@synthesize theCoordinate = _theCoordinate;

- (id)initWithImage:(NSString*)image imagebeachId:(NSString*)imagebeachId coordinate:(CLLocationCoordinate2D)coordinate {
    if ((self = [super init])) {
        //self.address = address;
        self.image = image;
        self.imagebeachId = imagebeachId;
        self.theCoordinate = coordinate;
    }
    return self;
}
- (NSString *)title {
    return @"";
}
- (NSString *)subtitle {
    return _image;
}

- (CLLocationCoordinate2D)coordinate {
    return _theCoordinate;
}
@end

编辑:这是我添加注释的地方:

- (void)imagePositions:(NSDictionary *)responseData {
    for (id<MKAnnotation> annotation in self.mapView.annotations) {
        if ([annotation isKindOfClass:[ImagePin class]]){
            //[self.mapView removeAnnotation:annotation];
        }
    }

    for (NSArray *row in responseData) {
        NSString * imageBeachId = [row valueForKey:@"id"];

        NSNumber * latitude = [row valueForKey:@"lat"];


        NSNumber * longitude = [row valueForKey:@"lng"];
        NSString * imageBeach = [row valueForKey:@"fb_photo_url"];


        CLLocationCoordinate2D coordinate;
        coordinate.latitude = latitude.doubleValue;
        coordinate.longitude = longitude.doubleValue;
        ImagePin *annotation = [[ImagePin alloc] initWithImage:imageBeach imagebeachId:imageBeachId coordinate:coordinate];

        [self.mapView addAnnotation:annotation];
    }
}

Answer 1

我都修好了!问题是标题不能为空(我使用 @""... 和 @"AAA 工作正常)然后不显示我已经完成的标注:

annotationView.canShowCallout = NO;

并实现:

-(void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view
{
    //here you action
}

非常感谢 Anna(解决方案是您的)!