我正在开发一个自定义注释视图，该视图显示背景图像，内部有一个自定义图像。我的代码基于此：带有边框、图标和图像的自定义MKAnnotationView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;
}
}
然后我有两种方法：
(void)writeSomething {
}
(void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control {
}
但是：
- 不显示我的右侧按钮标注（也不显示按钮）
- 我更喜欢当我点击完整的图像/注释时，它会调用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？在这个地图中，我还有更多不同类型的引脚（mkpinannotation），并且工作得很好（calloutAccessoryControlTapped方法也可以很好地处理这些引脚）。问题出在哪里？谢谢大家，很抱歉我的英语不好（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];
}
}
我已经修复了所有！问题是标题不能为空（我使用的是@"…带有@"AAA很好），然后因为没有显示我所做的标注：
annotationView.canShowCallout = NO;
并实现：
-(void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view
{
//here you action
}
非常感谢安娜（解决方案是你的）！
首先检查是否将delegate提供给MapView，如果没有，则如下所示提供delegate。。
yourMapView.delegate = self;
同样在.h文件中定义delegate如下。。
@interface ViewController : UIViewController<MKMapViewDelegate,MKAnnotation>{...
在检查了附件敲击时调用的这种波纹管方法后。。。
- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
{
NSLog(@"Do something ");
}
更新：
代替自定义按钮尝试使用它…
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation {
NSLog(@"viewForAnnotation...");
static NSString *identifier = @"MyLocation";
if ([annotation isKindOfClass:[ImagePin class]]) {
MKAnnotationView *annotationView = (MKAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:identifier];
if (annotationView == nil)
{
annotationView = [[[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:identifier] autorelease];
}
if (annotation == mapView.userLocation)
return nil;
annotationView.image = [UIImage imageNamed:@"yourImageName.png"];
annotationView.annotation = annotation;
annotationView.rightCalloutAccessoryView = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
annotationView.rightCalloutAccessoryView.tag = 101;
annotationView.canShowCallout = YES;
// annotationView.animatesDrop = YES;
return annotationView;
}
return nil;
}
对于在实现自定义MKAnnotationView时偶然发现这篇文章的其他人来说，问题可能还在于您必须明确设置视图的框架。
MKMapView MKPointAnnotation点击事件未调用