feat: 支持模拟器定位与地图 fallback

suixinkan/UI/LocationReport/Views/LocationReportViews.swift

@@ -7,6 +7,10 @@ import CoreLocation
 import SnapKit
 import UIKit
 
+#if targetEnvironment(simulator)
+import MapKit
+#endif
+
 /// 地图缩放/定位控件。
 final class LocationReportMapControlStack: UIView {
 
@@ -295,7 +299,112 @@ final class LocationReportBottomActionView: UIControl {
     }
 }
 
-/// 地图容器，封装高德 `MAMapView`。
+/// 位置上报地图容器，模拟器使用 MapKit。
+#if targetEnvironment(simulator)
+final class LocationReportMapView: UIView, MKMapViewDelegate {
+
+    var onMapTap: ((CLLocationCoordinate2D) -> Void)?
+
+    let mapView: MKMapView
+    private var markerAnnotation: MKPointAnnotation?
+    private var shouldCenterOnNextUserLocation = false
+
+    override init(frame: CGRect) {
+        mapView = MKMapView(frame: .zero)
+        super.init(frame: frame)
+        mapView.delegate = self
+        mapView.showsUserLocation = true
+        mapView.showsCompass = false
+        addSubview(mapView)
+        mapView.snp.makeConstraints { make in
+            make.edges.equalToSuperview()
+        }
+
+        let tapGesture = UITapGestureRecognizer(target: self, action: #selector(mapTapped(_:)))
+        tapGesture.cancelsTouchesInView = false
+        mapView.addGestureRecognizer(tapGesture)
+    }
+
+    @available(*, unavailable)
+    required init?(coder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    /// 进入页面后，在首次拿到用户位置时将地图居中。
+    func enableInitialUserLocationCentering() {
+        shouldCenterOnNextUserLocation = true
+        centerOnUserLocationIfNeeded()
+    }
+
+    func centerOnUserLocation() {
+        guard let coordinate = validUserCoordinate else { return }
+        setCenter(coordinate)
+    }
+
+    func setCenter(_ coordinate: CLLocationCoordinate2D, animated: Bool = true) {
+        let region = MKCoordinateRegion(
+            center: coordinate,
+            span: MKCoordinateSpan(latitudeDelta: 0.012, longitudeDelta: 0.012)
+        )
+        mapView.setRegion(region, animated: animated)
+    }
+
+    func zoomIn() {
+        updateZoom(scale: 0.5)
+    }
+
+    func zoomOut() {
+        updateZoom(scale: 2)
+    }
+
+    func updateMarker(latitude: Double?, longitude: Double?) {
+        if let markerAnnotation {
+            mapView.removeAnnotation(markerAnnotation)
+            self.markerAnnotation = nil
+        }
+        guard let latitude, let longitude else { return }
+        let annotation = MKPointAnnotation()
+        annotation.coordinate = CLLocationCoordinate2D(latitude: latitude, longitude: longitude)
+        markerAnnotation = annotation
+        mapView.addAnnotation(annotation)
+    }
+
+    func mapView(_ mapView: MKMapView, didUpdate userLocation: MKUserLocation) {
+        centerOnUserLocationIfNeeded()
+    }
+
+    @objc private func mapTapped(_ gesture: UITapGestureRecognizer) {
+        guard gesture.state == .ended else { return }
+        let point = gesture.location(in: mapView)
+        onMapTap?(mapView.convert(point, toCoordinateFrom: mapView))
+    }
+
+    private var validUserCoordinate: CLLocationCoordinate2D? {
+        guard let coordinate = mapView.userLocation.location?.coordinate,
+              CLLocationCoordinate2DIsValid(coordinate),
+              coordinate.latitude != 0 || coordinate.longitude != 0 else {
+            return nil
+        }
+        return coordinate
+    }
+
+    private func centerOnUserLocationIfNeeded() {
+        guard shouldCenterOnNextUserLocation, let coordinate = validUserCoordinate else { return }
+        setCenter(coordinate, animated: false)
+        shouldCenterOnNextUserLocation = false
+    }
+
+    private func updateZoom(scale: Double) {
+        let current = mapView.region
+        let span = MKCoordinateSpan(
+            latitudeDelta: min(max(current.span.latitudeDelta * scale, 0.0005), 120),
+            longitudeDelta: min(max(current.span.longitudeDelta * scale, 0.0005), 120)
+        )
+        mapView.setRegion(MKCoordinateRegion(center: current.center, span: span), animated: true)
+    }
+}
+#else
+/// 位置上报地图容器，真机封装高德 `MAMapView`。
 final class LocationReportMapView: UIView, MAMapViewDelegate {
 
     var onMapTap: ((CLLocationCoordinate2D) -> Void)?
@@ -381,3 +490,4 @@ final class LocationReportMapView: UIView, MAMapViewDelegate {
         shouldCenterOnNextUserLocation = false
     }
 }
+#endif