Initial commit: suixinkan_ios UIKit rewrite project.

Co-authored-by: Cursor <cursoragent@cursor.com>

suixinkan_ios/Features/ScenicPermission/ViewModels/ScenicSelectionLocationProvider.swift

@@ -0,0 +1,62 @@
+//
+//  ScenicSelectionLocationProvider.swift
+//  suixinkan
+//
+//  Created by Codex on 2026/6/23.
+//
+
+import CoreLocation
+import Foundation
+
+/// 景区选择定位服务，负责向系统请求一次当前位置。
+final class ScenicSelectionLocationProvider: NSObject, CLLocationManagerDelegate {
+    var onLocation: ((CLLocation) -> Void)?
+    var onFailure: ((String) -> Void)?
+
+    private let manager = CLLocationManager()
+
+    /// 初始化定位服务并配置精度。
+    override init() {
+        super.init()
+        manager.delegate = self
+        manager.desiredAccuracy = kCLLocationAccuracyHundredMeters
+    }
+
+    /// 请求一次当前位置；未授权时先触发系统授权弹窗。
+    func request() {
+        switch manager.authorizationStatus {
+        case .notDetermined:
+            manager.requestWhenInUseAuthorization()
+        case .authorizedAlways, .authorizedWhenInUse:
+            manager.requestLocation()
+        case .denied, .restricted:
+            onFailure?("定位权限未开启，请在系统设置中允许访问位置")
+        @unknown default:
+            onFailure?("定位状态不可用")
+        }
+    }
+
+    /// 监听授权状态变化，并在授权后继续请求定位。
+    func locationManagerDidChangeAuthorization(_ manager: CLLocationManager) {
+        switch manager.authorizationStatus {
+        case .authorizedAlways, .authorizedWhenInUse:
+            manager.requestLocation()
+        case .denied, .restricted:
+            onFailure?("定位权限未开启，请在系统设置中允许访问位置")
+        default:
+            break
+        }
+    }
+
+    /// 接收系统返回的位置。
+    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
+        if let location = locations.last {
+            onLocation?(location)
+        }
+    }
+
+    /// 接收系统定位错误。
+    func locationManager(_ manager: CLLocationManager, didFailWithError error: Error) {
+        onFailure?("定位失败：\(error.localizedDescription)")
+    }
+}