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Diffstat (limited to 'platform/ios/demo/Examples/ObjectiveC/RuntimeAnimateLineExample.m')
| -rw-r--r-- | platform/ios/demo/Examples/ObjectiveC/RuntimeAnimateLineExample.m | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/platform/ios/demo/Examples/ObjectiveC/RuntimeAnimateLineExample.m b/platform/ios/demo/Examples/ObjectiveC/RuntimeAnimateLineExample.m new file mode 100644 index 0000000000..a9a44a97e7 --- /dev/null +++ b/platform/ios/demo/Examples/ObjectiveC/RuntimeAnimateLineExample.m @@ -0,0 +1,181 @@ +#import "RuntimeAnimateLineExample.h" +@import Mapbox; + +NSString *const MBXExampleRuntimeAnimateLine = @"RuntimeAnimateLineExample"; + +@interface RuntimeAnimateLineExample () <MGLMapViewDelegate> { + int _currentIndex; + NSTimer *_timer; +} + +@property (nonatomic) MGLMapView *mapView; +@property (nonatomic) MGLShapeSource *polylineSource; +@property (nonatomic) NSArray<CLLocation *> *locations; + +@end + +@implementation RuntimeAnimateLineExample + +- (void)viewDidLoad { + [super viewDidLoad]; + + self.mapView = [[MGLMapView alloc] initWithFrame:self.view.bounds]; + self.mapView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight; + + [self.mapView setCenterCoordinate:CLLocationCoordinate2DMake(45.5076, -122.6736) + zoomLevel:11 + animated:NO]; + + [self.view addSubview:self.mapView]; + + self.mapView.delegate = self; +} + +// Wait until the map is loaded before adding to the map. +- (void)mapView:(MGLMapView *)mapView didFinishLoadingStyle:(MGLStyle *)style { + [self addLayer]; + [self animatePolyline]; +} + +- (void)addLayer { + // Add an empty MGLShapeSource, we’ll keep a reference to this and add points to this later. + MGLShapeSource *source = [[MGLShapeSource alloc] initWithIdentifier:@"polyline" features:@[] options:nil]; + [self.mapView.style addSource:source]; + self.polylineSource = source; + + // Add a layer to style our polyline. + MGLLineStyleLayer *layer = [[MGLLineStyleLayer alloc] initWithIdentifier:@"polyline" source:source]; + layer.lineJoin = [MGLStyleValue valueWithRawValue:[NSValue valueWithMGLLineJoin:MGLLineJoinRound]]; + layer.lineCap = [MGLStyleValue valueWithRawValue:[NSValue valueWithMGLLineCap:MGLLineCapRound]]; + layer.lineColor = [MGLStyleValue valueWithRawValue:[UIColor redColor]]; + layer.lineWidth = [MGLStyleValue valueWithInterpolationMode:MGLInterpolationModeExponential + cameraStops: @{ + @14: [MGLStyleValue valueWithRawValue:@5], + @18: [MGLStyleValue valueWithRawValue:@20] + } + options:@{MGLStyleFunctionOptionDefaultValue:@1.75}]; + + [self.mapView.style addLayer:layer]; +} + +- (void)animatePolyline { + _currentIndex = 1; + + // Start a timer that will simulate adding points to our polyline. This could also represent coordinates being added to our polyline from another source, such as a CLLocationManagerDelegate. + _timer = [NSTimer scheduledTimerWithTimeInterval:0.05 target:self selector:@selector(tick) userInfo:nil repeats:YES]; +} + +- (void)tick { + if (_currentIndex > self.locations.count) { + [_timer invalidate]; + _timer = nil; + return; + } + + // Create a subarray of locations up to the current index. + NSArray *currentLocations = [self.locations subarrayWithRange:NSMakeRange(0, _currentIndex)]; + + // Update our MGLShapeSource with the current locations. + [self updatePolylineWithLocations:currentLocations]; + + _currentIndex++; +} + +- (void)updatePolylineWithLocations:(NSArray<CLLocation *> *)locations { + CLLocationCoordinate2D coordinates[locations.count]; + + for (NSUInteger i = 0; i < locations.count; i++) { + coordinates[i] = locations[i].coordinate; + } + + MGLPolylineFeature *polyline = [MGLPolylineFeature polylineWithCoordinates:coordinates count:locations.count]; + + // Updating the MGLShapeSource’s shape will have the map redraw our polyline with the current coordinates. + self.polylineSource.shape = polyline; +} + +- (NSArray<CLLocation *> *)locations { + NSArray *coordinates = @[ + @[@(-122.63748), @45.52214], + @[@(-122.64855), @45.52218], + @[@(-122.6545), @45.52219], + @[@(-122.65497), @45.52196], + @[@(-122.65631), @45.52104], + @[@(-122.6578), @45.51935], + @[@(-122.65867), @45.51848], + @[@(-122.65872), @45.51293], + @[@(-122.66576), @45.51295], + @[@(-122.66745), @45.51252], + @[@(-122.66813), @45.51244], + @[@(-122.67359), @45.51385], + @[@(-122.67415), @45.51406], + @[@(-122.67481), @45.51484], + @[@(-122.676), @45.51532], + @[@(-122.68106), @45.51668], + @[@(-122.68503), @45.50934], + @[@(-122.68546), @45.50858], + @[@(-122.6852), @45.50783], + @[@(-122.68424), @45.50714], + @[@(-122.68433), @45.50585], + @[@(-122.68429), @45.50521], + @[@(-122.68456), @45.50445], + @[@(-122.68538), @45.50371], + @[@(-122.68653), @45.50311], + @[@(-122.68731), @45.50292], + @[@(-122.68742), @45.50253], + @[@(-122.6867), @45.50239], + @[@(-122.68545), @45.5026], + @[@(-122.68407), @45.50294], + @[@(-122.68357), @45.50271], + @[@(-122.68236), @45.50055], + @[@(-122.68233), @45.49994], + @[@(-122.68267), @45.49955], + @[@(-122.68257), @45.49919], + @[@(-122.68376), @45.49842], + @[@(-122.68428), @45.49821], + @[@(-122.68573), @45.49798], + @[@(-122.68923), @45.49805], + @[@(-122.68926), @45.49857], + @[@(-122.68814), @45.49911], + @[@(-122.68865), @45.49921], + @[@(-122.6897), @45.49905], + @[@(-122.69346), @45.49917], + @[@(-122.69404), @45.49902], + @[@(-122.69438), @45.49796], + @[@(-122.69504), @45.49697], + @[@(-122.69624), @45.49661], + @[@(-122.69781), @45.4955], + @[@(-122.69803), @45.49517], + @[@(-122.69711), @45.49508], + @[@(-122.69688), @45.4948], + @[@(-122.69744), @45.49368], + @[@(-122.69702), @45.49311], + @[@(-122.69665), @45.49294], + @[@(-122.69788), @45.49212], + @[@(-122.69771), @45.49264], + @[@(-122.69835), @45.49332], + @[@(-122.7007), @45.49334], + @[@(-122.70167), @45.49358], + @[@(-122.70215), @45.49401], + @[@(-122.70229), @45.49439], + @[@(-122.70185), @45.49566], + @[@(-122.70215), @45.49635], + @[@(-122.70346), @45.49674], + @[@(-122.70517), @45.49758], + @[@(-122.70614), @45.49736], + @[@(-122.70663), @45.49736], + @[@(-122.70807), @45.49767], + @[@(-122.70807), @45.49798], + @[@(-122.70717), @45.49798], + @[@(-122.70713), @45.4984], + @[@(-122.70774), @45.49893], + ]; + + NSMutableArray<CLLocation *> *locations = [NSMutableArray array]; + for (NSArray<NSNumber *> *c in coordinates) { + [locations addObject:[[CLLocation alloc] initWithLatitude:[c[1] doubleValue] longitude:[c[0] doubleValue]]]; + } + return locations; +} + +@end |