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75 lines
0 B
75 lines
0 B
1 year 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/MapZoomViewController.h"
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#import <GoogleMaps/GoogleMaps.h>
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@implementation MapZoomViewController {
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GMSMapView *_mapView;
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UITextView *_zoomRangeView;
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NSUInteger _nextMode;
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}
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- (void)viewDidLoad {
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[super viewDidLoad];
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GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-33.868
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longitude:151.2086
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zoom:6];
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_mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera];
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_mapView.settings.scrollGestures = NO;
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self.view = _mapView;
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// Add a display for the current zoom range restriction.
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_zoomRangeView = [[UITextView alloc] init];
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_zoomRangeView.frame =
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CGRectMake(0, 0, CGRectGetWidth(self.view.frame), 0);
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_zoomRangeView.text = @"";
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_zoomRangeView.textAlignment = NSTextAlignmentCenter;
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_zoomRangeView.backgroundColor = [UIColor colorWithWhite:1.0 alpha:0.8f];
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_zoomRangeView.autoresizingMask = UIViewAutoresizingFlexibleWidth;
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_zoomRangeView.editable = NO;
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[self.view addSubview:_zoomRangeView];
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[_zoomRangeView sizeToFit];
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[self didTapNext];
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// Add a button toggling through modes.
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self.navigationItem.rightBarButtonItem =
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[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemPlay
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target:self
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action:@selector(didTapNext)];
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}
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- (void)didTapNext {
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NSString *label = @"";
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float minZoom = kGMSMinZoomLevel;
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float maxZoom = kGMSMaxZoomLevel;
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switch (_nextMode) {
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case 0:
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label = @"Default";
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break;
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case 1:
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minZoom = 18;
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label = @"Zoomed in";
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break;
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case 2:
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maxZoom = 8;
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label = @"Zoomed out";
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break;
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case 3:
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minZoom = 10;
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maxZoom = 11.5;
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label = @"Small range";
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break;
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}
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_nextMode = (_nextMode + 1) % 4;
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[_mapView setMinZoom:minZoom maxZoom:maxZoom];
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_zoomRangeView.text =
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[NSString stringWithFormat:@"%@ (%.2f - %.2f)", label, _mapView.minZoom, _mapView.maxZoom];
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}
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@end
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