如何在Swift 3/4中获得相机内的位置？

import CoreLocation

let locationManager = CLLocationManager()

override func viewDidLoad() {
    super.viewDidLoad()
    
    locationManager.delegate = self
    locationManager.desiredAccuracy = kCLLocationAccuracyBest
    
    // 请求地理位置权限
    locationManager.requestWhenInUseAuthorization()
}

extension YourViewController: CLLocationManagerDelegate {
    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        if let location = locations.first {
            // 获取设备的地理位置信息
            let latitude = location.coordinate.latitude
            let longitude = location.coordinate.longitude
            
            // 在这里可以使用获取到的地理位置信息进行相应的操作
        }
    }
    
    func locationManager(_ manager: CLLocationManager, didFailWithError error: Error) {
        // 处理定位失败的情况
    }
}

import AVFoundation

let captureSession = AVCaptureSession()
captureSession.sessionPreset = .photo

guard let captureDevice = AVCaptureDevice.default(for: .video) else {
    // 处理设备没有相机的情况
    return
}

guard let captureInput = try? AVCaptureDeviceInput(device: captureDevice) else {
    // 处理无法创建输入设备的情况
    return
}

if captureSession.canAddInput(captureInput) {
    captureSession.addInput(captureInput)
} else {
    // 处理无法添加输入设备的情况
    return
}

let previewLayer = AVCaptureVideoPreviewLayer(session: captureSession)
previewLayer.videoGravity = .resizeAspectFill
previewLayer.frame = view.bounds
view.layer.addSublayer(previewLayer)

captureSession.startRunning()