105 lines
3.2 KiB
Swift
105 lines
3.2 KiB
Swift
//
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// LocationGeocoder.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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/// 地址逆地理编码能力，供平台定位实现注入。
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@MainActor
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protocol LocationAddressGeocoding: AnyObject {
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/// 将坐标解析为可读地址，失败时返回空字符串。
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func reverseGeocode(latitude: Double, longitude: Double) async -> String
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}
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/// 平台逆地理编码封装；真机使用高德，模拟器使用 Core Location。
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@MainActor
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final class LocationGeocoder: NSObject, LocationAddressGeocoding {
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nonisolated static let shared = LocationGeocoder()
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#if targetEnvironment(simulator)
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private let geocoder = CLGeocoder()
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#else
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private var searchAPI: AMapSearchAPI?
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private var continuation: CheckedContinuation<String, Never>?
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#endif
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nonisolated private override init() {
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super.init()
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}
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/// 将坐标解析为可读地址。
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func reverseGeocode(latitude: Double, longitude: Double) async -> String {
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#if targetEnvironment(simulator)
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let location = CLLocation(latitude: latitude, longitude: longitude)
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guard let placemark = try? await geocoder.reverseGeocodeLocation(location).first else {
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return ""
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}
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if let name = placemark.name?.trimmingCharacters(in: .whitespacesAndNewlines),
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!name.isEmpty {
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return name
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}
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return [
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placemark.administrativeArea,
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placemark.locality,
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placemark.subLocality,
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placemark.thoroughfare,
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placemark.subThoroughfare,
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]
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.compactMap { $0?.trimmingCharacters(in: .whitespacesAndNewlines) }
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.filter { !$0.isEmpty }
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.joined()
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#else
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do {
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try AMapBootstrap.requireConfigured()
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} catch {
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return ""
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}
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return await withCheckedContinuation { continuation in
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self.continuation?.resume(returning: "")
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self.continuation = continuation
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guard let api = makeSearchAPI() else {
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continuation.resume(returning: "")
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return
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}
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let request = AMapReGeocodeSearchRequest()
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request.location = AMapGeoPoint.location(withLatitude: CGFloat(latitude), longitude: CGFloat(longitude))
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request.requireExtension = true
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request.radius = 200
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api.aMapReGoecodeSearch(request)
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}
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#endif
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}
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#if !targetEnvironment(simulator)
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func onReGeocodeSearchDone(_ request: AMapReGeocodeSearchRequest!, response: AMapReGeocodeSearchResponse!) {
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let address = response?.regeocode?.formattedAddress ?? ""
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continuation?.resume(returning: address)
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continuation = nil
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}
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func aMapSearchRequest(_ request: Any!, didFailWithError error: Error!) {
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continuation?.resume(returning: "")
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continuation = nil
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}
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private func makeSearchAPI() -> AMapSearchAPI? {
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if let searchAPI {
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return searchAPI
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}
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guard let api = AMapSearchAPI() else { return nil }
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api.delegate = self
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searchAPI = api
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return api
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}
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#endif
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}
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#if !targetEnvironment(simulator)
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extension LocationGeocoder: AMapSearchDelegate {}
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#endif
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