f46328655e
Added some nullability qualifiers in method implementation selectors for consistency with declarations. The user dot view now has a non-zero size. Previously only its layer was sized properly. Also resolved some pedantic warnings about missing designated initializer overrides. Xcode 6.3 or above is now required for building this project.
75 lines
1.5 KiB
Objective-C
75 lines
1.5 KiB
Objective-C
#import "MGLUserLocation_Private.h"
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#import "MGLMapView.h"
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NS_ASSUME_NONNULL_BEGIN
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@interface MGLUserLocation ()
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@property (nonatomic, weak) MGLMapView *mapView;
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@end
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NS_ASSUME_NONNULL_END
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@implementation MGLUserLocation
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- (instancetype)initWithMapView:(MGLMapView *)mapView
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{
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if (self = [super init])
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{
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_location = [[CLLocation alloc] initWithLatitude:MAXFLOAT longitude:MAXFLOAT];
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_mapView = mapView;
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}
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return self;
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}
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+ (BOOL)automaticallyNotifiesObserversForKey:(NSString *)key
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{
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return ! [key isEqualToString:@"location"] && ! [key isEqualToString:@"heading"];
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}
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+ (NSSet *)keyPathsForValuesAffectingCoordinate
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{
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return [NSSet setWithObject:@"location"];
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}
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- (void)setLocation:(CLLocation *)newLocation
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{
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if ([newLocation distanceFromLocation:_location] && newLocation.coordinate.latitude != 0 &&
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newLocation.coordinate.longitude != 0)
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{
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[self willChangeValueForKey:@"location"];
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_location = newLocation;
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[self didChangeValueForKey:@"location"];
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}
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}
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- (BOOL)isUpdating
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{
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return self.mapView.userTrackingMode != MGLUserTrackingModeNone;
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}
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- (void)setHeading:(CLHeading *)newHeading
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{
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if (newHeading.trueHeading != _heading.trueHeading)
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{
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[self willChangeValueForKey:@"heading"];
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_heading = newHeading;
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[self didChangeValueForKey:@"heading"];
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}
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}
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- (CLLocationCoordinate2D)coordinate
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{
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return self.location.coordinate;
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}
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- (NSString *)title
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{
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return (_title ? _title : @"You Are Here");
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}
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@end
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