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Diffstat (limited to 'platform/ios/demo/Examples/Swift/RuntimeAnimateLineExample.swift')
| -rw-r--r-- | platform/ios/demo/Examples/Swift/RuntimeAnimateLineExample.swift | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/platform/ios/demo/Examples/Swift/RuntimeAnimateLineExample.swift b/platform/ios/demo/Examples/Swift/RuntimeAnimateLineExample.swift new file mode 100644 index 0000000000..46280bd891 --- /dev/null +++ b/platform/ios/demo/Examples/Swift/RuntimeAnimateLineExample.swift @@ -0,0 +1,162 @@ +import Mapbox + +@objc(RuntimeAnimateLineExample_Swift) + +class RuntimeAnimateLineExample_Swift: UIViewController, MGLMapViewDelegate { + var mapView: MGLMapView! + var timer: Timer? + var polylineSource: MGLShapeSource? + var currentIndex = 1 + var allCoordinates: [CLLocationCoordinate2D]! + + override func viewDidLoad() { + super.viewDidLoad() + + mapView = MGLMapView(frame: view.bounds) + mapView.autoresizingMask = [.flexibleWidth, .flexibleHeight] + + mapView.setCenter( + CLLocationCoordinate2D(latitude: 45.5076, longitude: -122.6736), + zoomLevel: 11, + animated: false) + view.addSubview(mapView) + + mapView.delegate = self + + allCoordinates = coordinates() + } + + // Wait until the map is loaded before adding to the map. + func mapView(_ mapView: MGLMapView, didFinishLoading style: MGLStyle) { + addLayer(to: style) + animatePolyline() + } + + func addLayer(to style: MGLStyle) { + // Add an empty MGLShapeSource, we’ll keep a reference to this and add points to this later. + let source = MGLShapeSource(identifier: "polyline", shape: nil, options: nil) + style.addSource(source) + polylineSource = source + + // Add a layer to style our polyline. + let layer = MGLLineStyleLayer(identifier: "polyline", source: source) + layer.lineJoin = MGLStyleValue(rawValue: NSValue(mglLineJoin: .round)) + layer.lineCap = MGLStyleValue(rawValue: NSValue(mglLineCap: .round)) + layer.lineColor = MGLStyleValue(rawValue: UIColor.red) + layer.lineWidth = MGLStyleFunction(interpolationMode: .exponential, + cameraStops: [14: MGLConstantStyleValue<NSNumber>(rawValue: 5), + 18: MGLConstantStyleValue<NSNumber>(rawValue: 20)], + options: [.defaultValue : MGLConstantStyleValue<NSNumber>(rawValue: 1.5)]) + style.addLayer(layer) + } + + func 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 = Timer.scheduledTimer(timeInterval: 0.05, target: self, selector: #selector(tick), userInfo: nil, repeats: true) + } + + func tick() { + if currentIndex > allCoordinates.count { + timer?.invalidate() + timer = nil + return + } + + // Create a subarray of locations up to the current index. + let coordinates = Array(allCoordinates[0..<currentIndex]) + + // Update our MGLShapeSource with the current locations. + updatePolylineWithCoordinates(coordinates: coordinates) + + currentIndex += 1 + } + + func updatePolylineWithCoordinates(coordinates: [CLLocationCoordinate2D]) { + var mutableCoordinates = coordinates + + let polyline = MGLPolylineFeature(coordinates: &mutableCoordinates, count: UInt(mutableCoordinates.count)) + + // Updating the MGLShapeSource’s shape will have the map redraw our polyline with the current coordinates. + polylineSource?.shape = polyline + } + + func coordinates() -> [CLLocationCoordinate2D] { + return [ + (-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) + ].map({CLLocationCoordinate2D(latitude: $0.1, longitude: $0.0)}) + } +} |