Ich arbeite an einem Projekt, das benutzerdefinierte Kameraansicht enthält. Und ich bin nicht in der Lage, die Unteransicht über die Hauptansicht zu erfassen. Meine Hauptansicht besteht aus AVCaptureSession
und ich möchte Foto von Superview und Subview beide in einem Bild.Swift 3 - Wie wird das Bild und seine Unteransicht aufgenommen?
Was ich in Code versuchen:
class ViewController: UIViewController {
@IBOutlet weak var cameraButton: UIButton!
var captureSession = AVCaptureSession()
var backCamera: AVCaptureDevice?
var frontCamera: AVCaptureDevice?
var currentDevice: AVCaptureDevice?
var photoOutput: AVCapturePhotoOutput?
var cameraPreviewLayer:AVCaptureVideoPreviewLayer?
var image: UIImage?
var toggleCameraGestureRecognizer = UISwipeGestureRecognizer()
var zoomInGestureRecognizer = UISwipeGestureRecognizer()
var zoomOutGestureRecognizer = UISwipeGestureRecognizer()
override func viewDidLoad() {
super.viewDidLoad()
setupCaptureSession()
setupDevice()
setupInputOutput()
setupPreviewLayer()
captureSession.startRunning()
toggleCameraGestureRecognizer.direction = .up
toggleCameraGestureRecognizer.addTarget(self, action: #selector(self.switchCamera))
view.addGestureRecognizer(toggleCameraGestureRecognizer)
// Zoom In recognizer
zoomInGestureRecognizer.direction = .right
zoomInGestureRecognizer.addTarget(self, action: #selector(zoomIn))
view.addGestureRecognizer(zoomInGestureRecognizer)
// Zoom Out recognizer
zoomOutGestureRecognizer.direction = .left
zoomOutGestureRecognizer.addTarget(self, action: #selector(zoomOut))
view.addGestureRecognizer(zoomOutGestureRecognizer)
styleCaptureButton()
}
cameraButton.layer.borderColor = UIColor.white.cgColor
cameraButton.layer.borderWidth = 5
cameraButton.clipsToBounds = true
cameraButton.layer.cornerRadius = min(cameraButton.frame.width, cameraButton.frame.height)/2
}
func setupCaptureSession() {
captureSession.sessionPreset = AVCaptureSession.Preset.photo
}
func setupDevice() {
let deviceDiscoverySession = AVCaptureDevice.DiscoverySession(deviceTypes: [AVCaptureDevice.DeviceType.builtInWideAngleCamera], mediaType: AVMediaType.video, position: AVCaptureDevice.Position.unspecified)
let devices = deviceDiscoverySession.devices
for device in devices {
if device.position == AVCaptureDevice.Position.back {
backCamera = device
} else if device.position == AVCaptureDevice.Position.front {
frontCamera = device
}
}
currentDevice = backCamera
}
func setupInputOutput() {
do {
let captureDeviceInput = try AVCaptureDeviceInput(device: currentDevice!)
captureSession.addInput(captureDeviceInput)
photoOutput = AVCapturePhotoOutput()
photoOutput!.setPreparedPhotoSettingsArray([AVCapturePhotoSettings(format: [AVVideoCodecKey : AVVideoCodecType.jpeg])], completionHandler: nil)
captureSession.addOutput(photoOutput!)
} catch {
print(error)
}
}
func setupPreviewLayer() {
self.cameraPreviewLayer = AVCaptureVideoPreviewLayer(session: captureSession)
self.cameraPreviewLayer?.videoGravity = AVLayerVideoGravity.resizeAspectFill
self.cameraPreviewLayer?.connection?.videoOrientation = AVCaptureVideoOrientation.portrait
self.cameraPreviewLayer?.frame = view.frame
self.view.layer.insertSublayer(self.cameraPreviewLayer!, at: 0)
}
@IBAction func cameraButton_TouchUpInside(_ sender: Any) {
let settings = AVCapturePhotoSettings()
self.photoOutput?.capturePhoto(with: settings, delegate: self)
}
}
extension ViewController: AVCapturePhotoCaptureDelegate {
func photoOutput(_ output: AVCapturePhotoOutput, didFinishProcessingPhoto photo: AVCapturePhoto, error: Error?) {
if let imageData = photo.fileDataRepresentation() {
self.image = UIImage(data: imageData)
performSegue(withIdentifier: "Preview_Segue", sender: nil)
}
}
}
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