Swiftycam media capture library delegate crashes - ios

Question

I am using this library called SwiftyCam As it is mentioned in its page, this part is a bit confusing:
SwiftyCam is a drop-in convenience framework. To create a Camera instance, create a new UIViewController subclass. Replace the UIViewController subclass declaration with SwiftyCamViewController.
So i created a new view controller extends class SwiftyCameraViewController: SwiftyCamViewController, SwiftyCamViewControllerDelegate as in sample project. And i called this class from my main UIViewcontroller(MainViewController.swift) as:
let swiftyCamera = SwiftyCameraViewController()
self.present(swiftyCamera, animated: true, completion: nil)
So, this is SwiftyCameraViewController:
import UIKit
class SwiftyCameraViewController: SwiftyCamViewController, SwiftyCamViewControllerDelegate {
#IBOutlet weak var captureButton: SwiftyRecordButton!
#IBOutlet weak var flipCameraButton: UIButton!
#IBOutlet weak var flashButton: UIButton!
override func viewDidLoad() {
super.viewDidLoad()
cameraDelegate = self
maximumVideoDuration = 10.0
shouldUseDeviceOrientation = true
allowAutoRotate = true
audioEnabled = true
}
override var prefersStatusBarHidden: Bool {
return true
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
captureButton.delegate = self
}
func swiftyCam(_ swiftyCam: SwiftyCamViewController, didTake photo: UIImage) {
let newVC = PhotoViewController(image: photo)
self.present(newVC, animated: true, completion: nil)
}
func swiftyCam(_ swiftyCam: SwiftyCamViewController, didBeginRecordingVideo camera: SwiftyCamViewController.CameraSelection) {
print("Did Begin Recording")
captureButton.growButton()
UIView.animate(withDuration: 0.25, animations: {
self.flashButton.alpha = 0.0
self.flipCameraButton.alpha = 0.0
})
}
func swiftyCam(_ swiftyCam: SwiftyCamViewController, didFinishRecordingVideo camera: SwiftyCamViewController.CameraSelection) {
print("Did finish Recording")
captureButton.shrinkButton()
UIView.animate(withDuration: 0.25, animations: {
self.flashButton.alpha = 1.0
self.flipCameraButton.alpha = 1.0
})
}
func swiftyCam(_ swiftyCam: SwiftyCamViewController, didFinishProcessVideoAt url: URL) {
let newVC = VideoViewController(videoURL: url)
self.present(newVC, animated: true, completion: nil)
}
func swiftyCam(_ swiftyCam: SwiftyCamViewController, didFocusAtPoint point: CGPoint) {
let focusView = UIImageView(image: #imageLiteral(resourceName: "focus"))
focusView.center = point
focusView.alpha = 0.0
view.addSubview(focusView)
UIView.animate(withDuration: 0.25, delay: 0.0, options: .curveEaseInOut, animations: {
focusView.alpha = 1.0
focusView.transform = CGAffineTransform(scaleX: 1.25, y: 1.25)
}, completion: { (success) in
UIView.animate(withDuration: 0.15, delay: 0.5, options: .curveEaseInOut, animations: {
focusView.alpha = 0.0
focusView.transform = CGAffineTransform(translationX: 0.6, y: 0.6)
}, completion: { (success) in
focusView.removeFromSuperview()
})
})
}
func swiftyCam(_ swiftyCam: SwiftyCamViewController, didChangeZoomLevel zoom: CGFloat) {
print(zoom)
}
func swiftyCam(_ swiftyCam: SwiftyCamViewController, didSwitchCameras camera: SwiftyCamViewController.CameraSelection) {
print(camera)
}
func swiftyCam(_ swiftyCam: SwiftyCamViewController, didFailToRecordVideo error: Error) {
print(error)
}
#IBAction func cameraSwitchTapped(_ sender: Any) {
switchCamera()
}
#IBAction func toggleFlashTapped(_ sender: Any) {
flashEnabled = !flashEnabled
if flashEnabled == true {
flashButton.setImage(#imageLiteral(resourceName: "flash"), for: UIControlState())
} else {
flashButton.setImage(#imageLiteral(resourceName: "flashOutline"), for: UIControlState())
}
}
}
It crashed at line 33: captureButton.delegate = self, because captureButton is nil
I appreciate any kind of help. Thank you.

Answer 1

You must load the viewController with identifier
let swiftyCamera = self.storyboard?.instantiateViewController(withIdentifier:"swiftyCameraID")
self.present(swiftyCamera, animated: true, completion: nil)