ios - 从 calloutAccessoryControlTapped 设置 ViewController 标题

Question

一旦点击了调出附件控件，我试图简单地将 detailViewController 的标题设置为 pin 的标题。

这是我设置 MKAnnotation 的地方：

- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id 
<MKAnnotation>)annotation
{
MKAnnotationView *annotationView = [[MKPinAnnotationView alloc] 
initWithAnnotation:annotation reuseIdentifier:@"loc"];

这是我想将详细视图控制器的标题设置为图钉标题的地方：

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

DetailViewController *controller = [[DetailViewController alloc] initWithNibName:nil
                                                                            bundle:nil];
[self.navigationController pushViewController:controller animated:YES]; // or use     
presentViewController if you're using modals

controller.title = pin.annotationView.subtitle;

}

最后一行是搞砸了。有任何想法吗？谢谢你们！！

Answer 1

想通了 - 将控制器标题替换为：

controller.title = view.annotation.title;

谢谢大家！

Answer 2

- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view     
calloutAccessoryControlTapped:(UIControl *)control
{
MKAnnotation * annotation = (MKAnnotation *)annotation;

DetailViewController *controller = [[DetailViewController alloc] initWithNibName:nil
                                                                            bundle:nil];
controller.title = annotation.subtitle;

[self.navigationController pushViewController:controller animated:YES]; // or use     
presentViewController if you're using modals

}

上面的代码对我来说很好，布兰登先生