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80 lines
2.9 KiB
80 lines
2.9 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/MapLayerViewController.h"
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#import <GoogleMaps/GoogleMaps.h>
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@implementation MapLayerViewController {
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GMSMapView *_mapView;
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}
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- (void)viewDidLoad {
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[super viewDidLoad];
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GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-37.81969
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longitude:144.966085
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zoom:4];
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_mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera];
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self.view = _mapView;
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dispatch_async(dispatch_get_main_queue(), ^{
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_mapView.myLocationEnabled = YES;
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});
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UIBarButtonItem *myLocationButton =
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[[UIBarButtonItem alloc] initWithTitle:@"Fly to My Location"
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style:UIBarButtonItemStylePlain
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target:self
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action:@selector(didTapMyLocation)];
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self.navigationItem.rightBarButtonItem = myLocationButton;
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}
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- (void)didTapMyLocation {
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CLLocation *location = _mapView.myLocation;
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if (!location || !CLLocationCoordinate2DIsValid(location.coordinate)) {
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return;
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}
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_mapView.layer.cameraLatitude = location.coordinate.latitude;
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_mapView.layer.cameraLongitude = location.coordinate.longitude;
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_mapView.layer.cameraBearing = 0.0;
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// Access the GMSMapLayer directly to modify the following properties with a
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// specified timing function and duration.
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CAMediaTimingFunction *curve =
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[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
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CABasicAnimation *animation;
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animation = [CABasicAnimation animationWithKeyPath:kGMSLayerCameraLatitudeKey];
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animation.duration = 2.0f;
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animation.timingFunction = curve;
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animation.toValue = @(location.coordinate.latitude);
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[_mapView.layer addAnimation:animation forKey:kGMSLayerCameraLatitudeKey];
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animation = [CABasicAnimation animationWithKeyPath:kGMSLayerCameraLongitudeKey];
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animation.duration = 2.0f;
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animation.timingFunction = curve;
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animation.toValue = @(location.coordinate.longitude);
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[_mapView.layer addAnimation:animation forKey:kGMSLayerCameraLongitudeKey];
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animation = [CABasicAnimation animationWithKeyPath:kGMSLayerCameraBearingKey];
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animation.duration = 2.0f;
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animation.timingFunction = curve;
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animation.toValue = @0.0;
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[_mapView.layer addAnimation:animation forKey:kGMSLayerCameraBearingKey];
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// Fly out to the minimum zoom and then zoom back to the current zoom!
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CGFloat zoom = _mapView.camera.zoom;
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NSArray *keyValues = @[@(zoom), @(kGMSMinZoomLevel), @(zoom)];
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CAKeyframeAnimation *keyFrameAnimation =
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[CAKeyframeAnimation animationWithKeyPath:kGMSLayerCameraZoomLevelKey];
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keyFrameAnimation.duration = 2.0f;
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keyFrameAnimation.values = keyValues;
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[_mapView.layer addAnimation:keyFrameAnimation forKey:kGMSLayerCameraZoomLevelKey];
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}
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@end
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