110 lines
3.9 KiB
Swift
110 lines
3.9 KiB
Swift
//
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// LocationProvider.swift
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// suixinkan
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//
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import CoreLocation
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import Foundation
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/// 统一定位服务，封装高德 `AMapLocationManager`，对齐 Android `LocationProvider`。
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final class LocationProvider: NSObject, LocationProviding {
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static let shared = LocationProvider()
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private let permissionManager = CLLocationManager()
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private let geocoder: LocationGeocoder
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init(geocoder: LocationGeocoder = .shared) {
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self.geocoder = geocoder
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super.init()
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permissionManager.desiredAccuracy = kCLLocationAccuracyBest
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}
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func requestSnapshot() async throws -> HomeLocationSnapshot {
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try AMapBootstrap.requireConfigured()
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try await ensureLocationPermission()
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let manager = makeLocationManager(
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desiredAccuracy: kCLLocationAccuracyBest,
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locatingWithReGeocode: true
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)
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return try await withCheckedThrowingContinuation { continuation in
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let started = manager.requestLocation(withReGeocode: true) { location, regeocode, error in
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if let error {
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continuation.resume(throwing: error)
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return
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}
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guard let location else {
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continuation.resume(throwing: LocationProviderError.locationFailed)
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return
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}
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let address = regeocode?.formattedAddress ?? ""
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continuation.resume(returning: HomeLocationSnapshot(
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latitude: location.coordinate.latitude,
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longitude: location.coordinate.longitude,
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address: address
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))
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}
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if !started {
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continuation.resume(throwing: LocationProviderError.locationFailed)
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}
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}
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}
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func requestCoordinate(desiredAccuracy: CLLocationAccuracy) async throws -> CLLocationCoordinate2D {
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try AMapBootstrap.requireConfigured()
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try await ensureLocationPermission()
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let manager = makeLocationManager(
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desiredAccuracy: desiredAccuracy,
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locatingWithReGeocode: false
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)
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return try await withCheckedThrowingContinuation { continuation in
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let started = manager.requestLocation(withReGeocode: false) { location, _, error in
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if let error {
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continuation.resume(throwing: error)
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return
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}
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guard let location else {
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continuation.resume(throwing: LocationProviderError.locationFailed)
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return
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}
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continuation.resume(returning: location.coordinate)
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}
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if !started {
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continuation.resume(throwing: LocationProviderError.locationFailed)
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}
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}
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}
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func reverseGeocode(latitude: Double, longitude: Double) async -> String {
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await geocoder.reverseGeocode(latitude: latitude, longitude: longitude)
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}
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/// 请求系统定位权限，首次弹窗后等待用户响应。
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func ensureLocationPermission() async throws {
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let initialStatus = permissionManager.authorizationStatus
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if initialStatus == .notDetermined {
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permissionManager.requestWhenInUseAuthorization()
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try await Task.sleep(nanoseconds: 500_000_000)
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}
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let status = permissionManager.authorizationStatus
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guard status == .authorizedWhenInUse || status == .authorizedAlways else {
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throw LocationProviderError.permissionDenied
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}
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}
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private func makeLocationManager(
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desiredAccuracy: CLLocationAccuracy,
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locatingWithReGeocode: Bool
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) -> AMapLocationManager {
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let manager = AMapLocationManager()
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manager.desiredAccuracy = desiredAccuracy
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manager.locationTimeout = 30
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manager.reGeocodeTimeout = 10
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manager.locatingWithReGeocode = locatingWithReGeocode
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return manager
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}
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}
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