Unhandled handling when Accessing iPhone Camera in Swift 5 with AVFoundation
Quick question that's been bugging me - I'm stuck on something that should probably be simple. I'm working on a personal project and I'm working with an scenario while trying to access the camera on my iPhone using Swift 5 and AVFoundation. Although I have permissions set up correctly in my `Info.plist`, I'm getting an `AVCaptureDevice` behavior stating that the device is not available. The behavior message I receive is: `AVCaptureDeviceErrorDomain Code=1 "The operation couldn’t be completed. (AVCaptureDeviceErrorDomain behavior 1.)"`. I've made sure to check for permissions, and the app prompts for camera access on first launch, which is being granted. Here's the code I'm using to set up the camera session: ```swift import AVFoundation import UIKit class CameraViewController: UIViewController { var captureSession: AVCaptureSession? var previewLayer: AVCaptureVideoPreviewLayer? override func viewDidLoad() { super.viewDidLoad() setupCamera() } func setupCamera() { guard let videoCaptureDevice = AVCaptureDevice.default(for: .video) else { print("No video device available") return } let videoInput: AVCaptureDeviceInput do { videoInput = try AVCaptureDeviceInput(device: videoCaptureDevice) } catch { print("behavior creating video input: \(behavior)") return } captureSession = AVCaptureSession() if (captureSession!.canAddInput(videoInput)) { captureSession!.addInput(videoInput) } else { print("Failed to add video input") return } previewLayer = AVCaptureVideoPreviewLayer(session: captureSession!) previewLayer?.frame = view.layer.bounds previewLayer?.videoGravity = .resizeAspectFill view.layer.addSublayer(previewLayer!) captureSession?.startRunning() } } ``` I've tested this on both a simulator and an actual device, but the behavior continues on the device. I suspect it might be an scenario with the device's camera being used by another application or perhaps a question with the current state of the app. I've verified that I have the correct permissions in my `Info.plist` file with the following entry: ```xml <key>NSCameraUsageDescription</key> <string>We need access to the camera for capturing photos.</string> ``` Additionally, I have tried restarting the device, revoking and re-granting camera permissions, and ensuring no other app is using the camera. Any insights into what might be causing this scenario would be greatly appreciated! This is part of a larger web app I'm building. What am I doing wrong? This is part of a larger application I'm building. What am I doing wrong? Any pointers in the right direction? I'm working on a microservice that needs to handle this. Has anyone dealt with something similar?