118 lines
3.4 KiB
Swift
118 lines
3.4 KiB
Swift
import MapKit
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import SwiftUI
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struct AttachmentLocationPickerView: View {
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@StateObject var locationManager = LocationManager()
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@State private var region = MKCoordinateRegion()
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@State private var userInteraction = false
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var body: some View {
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ZStack {
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// MapView
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MapView(
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region: $region,
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userInteraction: $userInteraction
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)
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// Track button
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let img = userInteraction ? "location.circle" : "location.circle.fill"
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VStack {
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Spacer()
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HStack {
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Spacer()
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Image(systemName: img)
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.resizable()
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.frame(width: 30, height: 30)
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.foregroundColor(.Material.Elements.active)
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.background(Color.Material.Shape.white)
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.clipShape(Circle())
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.padding(16)
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.shadow(color: .white, radius: 2)
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.tappablePadding(.symmetric(10)) {
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userInteraction = false
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}
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}
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}
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}
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.onAppear {
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locationManager.start()
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}
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.onChange(of: locationManager.region) { region in
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if !userInteraction {
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self.region = region
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}
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}
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}
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}
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struct MapView: UIViewRepresentable {
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@Binding var region: MKCoordinateRegion
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@Binding var userInteraction: Bool
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func makeUIView(context: Context) -> MKMapView {
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let mapView = MKMapView()
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mapView.delegate = context.coordinator
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mapView.showsUserLocation = false
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mapView.userTrackingMode = .none
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return mapView
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}
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func updateUIView(_ uiView: MKMapView, context _: Context) {
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if uiView.region != region, !userInteraction {
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uiView.setRegion(region, animated: true)
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}
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}
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func makeCoordinator() -> Coordinator {
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Coordinator(self)
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}
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class Coordinator: NSObject, MKMapViewDelegate {
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var parent: MapView
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init(_ parent: MapView) {
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self.parent = parent
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}
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}
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}
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class LocationManager: NSObject, ObservableObject, CLLocationManagerDelegate {
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private let locationManager = CLLocationManager()
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@Published var region: MKCoordinateRegion
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override init() {
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region = MKCoordinateRegion()
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super.init()
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locationManager.delegate = self
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locationManager.desiredAccuracy = kCLLocationAccuracyBest
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}
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func start() {
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locationManager.requestWhenInUseAuthorization()
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locationManager.startUpdatingLocation()
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}
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func stop() {
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locationManager.stopUpdatingLocation()
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}
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func locationManager(_: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
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if let loc = locations.first {
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region = MKCoordinateRegion(
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center: loc.coordinate,
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span: MKCoordinateSpan(latitudeDelta: 0.002, longitudeDelta: 0.002)
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)
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}
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}
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}
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extension MKCoordinateRegion: Equatable {
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public static func == (lhs: MKCoordinateRegion, rhs: MKCoordinateRegion) -> Bool {
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lhs.center.latitude == rhs.center.latitude &&
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lhs.center.longitude == rhs.center.longitude &&
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lhs.span.latitudeDelta == rhs.span.latitudeDelta &&
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lhs.span.longitudeDelta == rhs.span.longitudeDelta
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}
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}
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