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50 lines
1.9 KiB
50 lines
1.9 KiB
2 years ago
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#if !defined(__has_feature) || !__has_feature(objc_arc)
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#error "This file requires ARC support."
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#endif
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#import "GoogleMapsDemos/Samples/GroundOverlayViewController.h"
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#import <GoogleMaps/GoogleMaps.h>
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@interface GroundOverlayViewController ()<GMSMapViewDelegate>
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@end
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@implementation GroundOverlayViewController
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- (void)viewDidLoad {
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[super viewDidLoad];
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CLLocationCoordinate2D southWest = CLLocationCoordinate2DMake(40.712216, -74.22655);
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CLLocationCoordinate2D northEast = CLLocationCoordinate2DMake(40.773941, -74.12544);
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GMSCoordinateBounds *overlayBounds = [[GMSCoordinateBounds alloc] initWithCoordinate:southWest
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coordinate:northEast];
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// Choose the midpoint of the coordinate to focus the camera on.
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CLLocationCoordinate2D newark = GMSGeometryInterpolate(southWest, northEast, 0.5);
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GMSCameraPosition *camera = [GMSCameraPosition cameraWithTarget:newark
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zoom:12
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bearing:0
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viewingAngle:45];
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GMSMapView *mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera];
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mapView.delegate = self;
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// Add the ground overlay, centered in Newark, NJ
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GMSGroundOverlay *groundOverlay = [[GMSGroundOverlay alloc] init];
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// Image from http://www.lib.utexas.edu/maps/historical/newark_nj_1922.jpg
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groundOverlay.icon = [UIImage imageNamed:@"newark_nj_1922.jpg"];
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groundOverlay.tappable = YES;
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groundOverlay.position = newark;
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groundOverlay.bounds = overlayBounds;
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groundOverlay.map = mapView;
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self.view = mapView;
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}
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- (void)mapView:(GMSMapView *)mapView didTapOverlay:(GMSOverlay *)overlay {
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float opacity = (((float)arc4random()/0x100000000)*0.5f + 0.5f);
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((GMSGroundOverlay *)overlay).opacity = opacity;
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}
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@end
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