我最近遇到了这个网站,我一直在尝试在我的调用视图中添加一个按钮(来自图像)。
网站示例上的代码工作得很好,但是当我尝试将相同的代码添加到我的项目中时,我没有得到相同的结果。
显然我错过了一些东西,但我似乎无法解决这个问题!
这是我的注释代码:
- (MKAnnotationView *) mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>) annotation{
MKPinAnnotationView *annView=[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"currentloc"];
annView.pinColor = MKPinAnnotationColorGreen;
UIButton *advertButton = [UIButton buttonWithType:UIButtonTypeCustom];
advertButton.frame = CGRectMake(0, 0, 23, 23);
advertButton.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;
advertButton.contentHorizontalAlignment = UIControlContentHorizontalAlignmentCenter;
[advertButton setImage:[UIImage imageNamed:@"button_right.png"] forState:UIControlStateNormal];
[advertButton addTarget:self action:@selector(showLinks:) forControlEvents:UIControlEventTouchUpInside];
annView.rightCalloutAccessoryView = advertButton;
annView.animatesDrop=TRUE;
annView.canShowCallout = YES;
annView.calloutOffset = CGPointMake(-5, 5);
return annView;
}
任何帮助,将不胜感激!:)