Question

当我点击PIN上的右侧标注时，我想移动到名为DetailsThemes的新视图控制器，但是，当我这样做时：

-(void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
{
    [self.navigationController pushViewController:self.detailsThemes animated:YES];
}

我收到了这个错误：

Property detailsThemes not found on object of type 'ViewController *'; 
    did you mean to access ivar 'detailsThemes'?

尽管detailsThemes是DetailsThemes的一个实例，它是一个UIViewController类，同样，在我的课程中，我确实调用了DetailsThemes类，其中@class DetailsThemes;位于顶部。像这样的文件：

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

@class DetailsThemes;

@interface ViewController : UIViewController<MKMapViewDelegate> 
{
    DetailsThemes * detailsThemes;
}

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

@end

修改

-(void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
{
    NSLog(@"calloutAccessoryControlTapped: %@",view.annotation);
    [self.navigationController pushViewController:self.detailsThemes animated:YES];


}
- (MKAnnotationView *)mapView:(MKMapView *)map viewForAnnotation:(id <MKAnnotation>)annotation {


    static NSString *identifier = @"ManageAnnotations";   

    MKPinAnnotationView *annotationView = (MKPinAnnotationView *) [map dequeueReusableAnnotationViewWithIdentifier:identifier];
    if (annotationView == nil) {
        annotationView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:identifier];
    } else {
        annotationView.annotation = annotation;
    }

    annotationView.enabled = YES;
    [annotationView setAnimatesDrop:YES];
    annotationView.canShowCallout = YES;
    //annotationView.pinColor = ((ManageAnnotations *)annotation).pinColor;
    annotationView.rightCalloutAccessoryView=[UIButton buttonWithType:UIButtonTypeInfoLight];
    return annotationView;

}

Answer 1

在ViewDidLoad方法中，您必须首先分配DetailsThemes，然后在通话中使用它。如果您还没有成功，请发布callOutAccessoryView的代码

单击rightCalloutAccessoryView时按下另一个视图

1 个答案: