我正在使用storyboard在视图控制器中创建地图视图.
当我使用以下代码时.
-(void) mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation
{
CLLocationDistance distance = 1000;
MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(userLocation.coordinate,distance,distance);
MKCoordinateRegion adjusted_region = [self.mapView regionThatFits:region];
[self.mapView setRegion:adjusted_region animated:YES];
}
在美国加利福尼亚州旧金山绘制一个点.该
userLocation坐标是MapKit.h框架中的预定义值.
现在我创建一个
-(void) mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation
{
CLLocationDistance distance = 1000;
CLLocationCoordinate2D myCoordinate;
myCoordinate.latitude = 13.04016;
myCoordinate.longitude = 80.243044;
MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(myCoordinate,distance);
MKCoordinateRegion adjusted_region = [self.mapView regionThatFits:region];
[self.mapView setRegion:adjusted_region animated:YES];
}
这里,显示具有中心坐标的区域.但是,在坐标位置没有绘制点.
如何在该坐标位置绘制点或注释？
