自定义注解引脚干扰Iphone上mkmapview的showuserlocation

Question

通常情况下，如果您启用了showuserlocation，并转到mapview，则会有蓝点动态放大到用户的当前位置。但是，如果为不同的颜色目的创建了一个自定义注解别针，则showuserlocation功能将消失。newAnnotation下面的代码是罪魁祸首。您如何既有自定义引脚，也显示用户定位能力不受干扰。

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

 if ([[annotation title] isEqualToString:@"Destination"])
  {
MKPinAnnotationView *newAnnotation = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"greenpin"];
newAnnotation.pinColor = MKPinAnnotationColorGreen;
newAnnotation.animatesDrop = YES;
newAnnotation.canShowCallout = YES;
return newAnnotation;
 }

}

Answer 1

尝尝这个

- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
    // if it's the user location, just return nil.
    if ([annotation isKindOfClass:[MKUserLocation class]])
        return nil;

    if ([[annotation title] isEqualToString:@"Destination"])
    {
        MKPinAnnotationView *newAnnotation = [[MKPinAnnotationView alloc]  initWithAnnotation:annotation reuseIdentifier:@"greenpin"];
        newAnnotation.pinColor = MKPinAnnotationColorGreen;
        newAnnotation.animatesDrop = YES;
        newAnnotation.canShowCallout = YES;
        return newAnnotation;
    }
}