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#import "DrawingACustomMarkerExample.h"
@import Mapbox;
NSString *const MBXExampleDrawingACustomMarker = @"DrawingACustomMarkerExample";
@interface DrawingACustomMarkerExample () <MGLMapViewDelegate>
@end
@implementation DrawingACustomMarkerExample
- (void)viewDidLoad {
[super viewDidLoad];
NSURL *styleURL = [MGLStyle lightStyleURLWithVersion:9];
MGLMapView *mapView = [[MGLMapView alloc] initWithFrame:self.view.bounds styleURL:styleURL];
mapView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
mapView.tintColor = [UIColor darkGrayColor];
// Set the map‘s bounds to Pisa, Italy.
MGLCoordinateBounds bounds = MGLCoordinateBoundsMake(
CLLocationCoordinate2DMake(43.7115, 10.3725),
CLLocationCoordinate2DMake(43.7318, 10.4222));
[mapView setVisibleCoordinateBounds:bounds];
[self.view addSubview:mapView];
// Set the map view‘s delegate property.
mapView.delegate = self;
// Initialize and add the point annotation.
MGLPointAnnotation *pisa = [[MGLPointAnnotation alloc] init];
pisa.coordinate = CLLocationCoordinate2DMake(43.723, 10.396633);
pisa.title = @"Leaning Tower of Pisa";
[mapView addAnnotation:pisa];
}
- (MGLAnnotationImage *)mapView:(MGLMapView *)mapView imageForAnnotation:(id <MGLAnnotation>)annotation {
// Try to reuse the existing ‘pisa’ annotation image, if it exists.
MGLAnnotationImage *annotationImage = [mapView dequeueReusableAnnotationImageWithIdentifier:@"pisa"];
// If the ‘pisa’ annotation image hasn‘t been set yet, initialize it here.
if (!annotationImage) {
// Leaning Tower of Pisa by Stefan Spieler from the Noun Project.
UIImage *image = [UIImage imageNamed:@"pisavector"];
// The anchor point of an annotation is currently always the center. To
// shift the anchor point to the bottom of the annotation, the image
// asset includes transparent bottom padding equal to the original image
// height.
//
// To make this padding non-interactive, we create another image object
// with a custom alignment rect that excludes the padding.
image = [image imageWithAlignmentRectInsets:UIEdgeInsetsMake(0, 0, image.size.height/2, 0)];
// Initialize the ‘pisa’ annotation image with the UIImage we just loaded.
annotationImage = [MGLAnnotationImage annotationImageWithImage:image reuseIdentifier:@"pisa"];
}
return annotationImage;
}
- (BOOL)mapView:(MGLMapView *)mapView annotationCanShowCallout:(id <MGLAnnotation>)annotation {
// Always allow callouts to popup when annotations are tapped.
return YES;
}
@end
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