问使用iPhone摄像头的macOS应用程序

EN

import Cocoa
import AVFoundation

class ViewController: NSViewController {
@IBOutlet weak var camera: NSView!

override func viewDidLoad() {
    super.viewDidLoad()
    camera.layer = CALayer()
    let session:AVCaptureSession = AVCaptureSession()
    session.sessionPreset = AVCaptureSession.Preset.high
    let device:AVCaptureDevice = (AVCaptureDevice.default(for: AVMediaType.video))!
   // let listdevices = (AVCaptureDevice.devices())


do {
    try session.addInput(AVCaptureDeviceInput(device: device))

    //Preview
    let previewLayer:AVCaptureVideoPreviewLayer = AVCaptureVideoPreviewLayer(session: session)
    let myView:NSView = self.view
    previewLayer.frame = myView.bounds
    previewLayer.videoGravity = AVLayerVideoGravity.resizeAspectFill
    self.camera.layer?.addSublayer(previewLayer)
    session.startRunning()

           // print(listdevices)
            // print(device)
    } catch {
         print(device)
            }


}


override var representedObject: Any? {
    didSet {
    // Update the view, if already loaded.
    }
}


 }