1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
|
#import "MGLUserLocation_Private.h"
#import "MGLMapView.h"
#import "NSBundle+MGLAdditions.h"
NS_ASSUME_NONNULL_BEGIN
@interface MGLUserLocation ()
@property (nonatomic, weak) MGLMapView *mapView;
@end
NS_ASSUME_NONNULL_END
@implementation MGLUserLocation
- (instancetype)initWithMapView:(MGLMapView *)mapView
{
if (self = [super init])
{
_location = [[CLLocation alloc] initWithLatitude:MAXFLOAT longitude:MAXFLOAT];
_mapView = mapView;
}
return self;
}
+ (BOOL)automaticallyNotifiesObserversForKey:(NSString *)key
{
return ! [key isEqualToString:@"location"] && ! [key isEqualToString:@"heading"];
}
+ (NS_SET_OF(NSString *) *)keyPathsForValuesAffectingCoordinate
{
return [NSSet setWithObject:@"location"];
}
- (void)setLocation:(CLLocation *)newLocation
{
if ( ! newLocation || ! CLLocationCoordinate2DIsValid(newLocation.coordinate)) return;
if ( _location && CLLocationCoordinate2DIsValid(_location.coordinate) && [newLocation distanceFromLocation:_location] == 0) return;
if (newLocation.coordinate.latitude == 0 && newLocation.coordinate.longitude == 0) return;
[self willChangeValueForKey:@"location"];
_location = newLocation;
[self didChangeValueForKey:@"location"];
}
- (BOOL)isUpdating
{
return self.mapView.userTrackingMode != MGLUserTrackingModeNone;
}
- (void)setHeading:(CLHeading *)newHeading
{
if (newHeading.trueHeading != _heading.trueHeading)
{
[self willChangeValueForKey:@"heading"];
_heading = newHeading;
[self didChangeValueForKey:@"heading"];
}
}
- (CLLocationCoordinate2D)coordinate
{
return self.location.coordinate;
}
- (NSString *)title
{
return _title ?: NSLocalizedStringWithDefaultValue(@"USER_DOT_TITLE", nil, nil, @"You Are Here", @"Default user location annotation title");
}
- (NSString *)description
{
return [NSString stringWithFormat:@"<%@: %p; location = %f, %f; updating = %@; altitude = %.0fm; heading = %.0f°; title = %@; subtitle = %@>",
NSStringFromClass([self class]), (void *)self,
self.location.coordinate.latitude, self.location.coordinate.longitude,
self.updating ? @"yes" : @"no",
self.location.altitude,
self.heading.trueHeading,
self.title ? [NSString stringWithFormat:@"\"%@\"", self.title] : self.title,
self.subtitle ? [NSString stringWithFormat:@"\"%@\"", self.subtitle] : self.subtitle];
}
@end
|
