workaround for restarting capture after going back from message notification screen

Session/Home/New Conversation/NewMessageScreen.swift

@@ -63,7 +63,7 @@ struct NewMessageScreen: View {
         }
     }
     
-    func continueWithAccountIdFromQRCode(onError: (() -> ())?) {
+    func continueWithAccountIdFromQRCode(onSuccess: (() -> ())?, onError: (() -> ())?) {
         startNewPrivateChatIfPossible(with: accountIdOrONS, onError: onError)
     }
     

Session/Onboarding/LoadAccountScreen.swift

@@ -50,7 +50,7 @@ struct LoadAccountScreen: View {
         }
     }
     
-    private func continueWithSeed(seed: Data, from source: Onboarding.SeedSource, onError: (() -> ())?) {
+    private func continueWithSeed(seed: Data, from source: Onboarding.SeedSource, onSuccess: (() -> ())?, onError: (() -> ())?) {
         if (seed.count != 16) {
             errorString =  source.genericErrorMessage
             DispatchQueue.main.asyncAfter(deadline: .now() + 1) {
@@ -67,15 +67,19 @@ struct LoadAccountScreen: View {
                 x25519KeyPair: x25519KeyPair
             )
         
+        DispatchQueue.main.asyncAfter(deadline: .now() + 1) {
+            onSuccess?()
+        }
+        
         // Otherwise continue on to request push notifications permissions
         let viewController: SessionHostingViewController = SessionHostingViewController(rootView: PNModeScreen(flow: .link))
         viewController.setUpNavBarSessionIcon()
         self.host.controller?.navigationController?.pushViewController(viewController, animated: true)
     }
     
-    func continueWithhexEncodedSeed(onError: (() -> ())?) {
+    func continueWithhexEncodedSeed(onSuccess: (() -> ())?, onError: (() -> ())?) {
         let seed = Data(hex: hexEncodedSeed)
-        continueWithSeed(seed: seed, from: .qrCode, onError: onError)
+        continueWithSeed(seed: seed, from: .qrCode, onSuccess: onSuccess, onError: onError)
     }
     
     func continueWithMnemonic() {
@@ -99,7 +103,7 @@ struct LoadAccountScreen: View {
             return
         }
         let seed = Data(hex: hexEncodedSeed)
-        continueWithSeed(seed: seed, from: .mnemonic, onError: nil)
+        continueWithSeed(seed: seed, from: .mnemonic, onSuccess: nil, onError: nil)
     }
 }
 

Session/Open Groups/JoinOpenGroupVC.swift

@@ -144,7 +144,7 @@ final class JoinOpenGroupVC: BaseVC, UIPageViewControllerDataSource, UIPageViewC
         dismiss(animated: true, completion: nil)
     }
 
-    func controller(_ controller: QRCodeScanningViewController, didDetectQRCodeWith string: String, onError: (() -> ())?) {
+    func controller(_ controller: QRCodeScanningViewController, didDetectQRCodeWith string: String, onSuccess: (() -> ())?, onError: (() -> ())?) {
         joinOpenGroup(with: string, onError: onError)
     }
 

Session/Settings/QRCodeScreen.swift

@@ -56,7 +56,7 @@ struct QRCodeScreen: View {
         }
     }
     
-    func continueWithAccountId(onError: (() -> ())?) {
+    func continueWithAccountId(onSuccess: (() -> ())?, onError: (() -> ())?) {
         let hexEncodedPublicKey = accountId
         startNewPrivateChatIfPossible(with: hexEncodedPublicKey, onError: onError)
     }

Session/Shared/QRCodeScanningViewController.swift

@@ -6,7 +6,7 @@ import SessionUIKit
 import SessionUtilitiesKit
 
 protocol QRScannerDelegate: AnyObject {
-    func controller(_ controller: QRCodeScanningViewController, didDetectQRCodeWith string: String, onError: (() -> ())?)
+    func controller(_ controller: QRCodeScanningViewController, didDetectQRCodeWith string: String, onSuccess: (() -> ())?, onError: (() -> ())?)
 }
 
 class QRCodeScanningViewController: UIViewController, AVCaptureMetadataOutputObjectsDelegate {
@@ -16,6 +16,7 @@ class QRCodeScanningViewController: UIViewController, AVCaptureMetadataOutputObj
     private var capture: AVCaptureSession?
     private var captureLayer: AVCaptureVideoPreviewLayer?
     private var captureEnabled: Bool = false
+    private var shouldResumeCapture: Bool = false
     
     // MARK: - Initialization
     
@@ -49,7 +50,7 @@ class QRCodeScanningViewController: UIViewController, AVCaptureMetadataOutputObj
     override func viewWillAppear(_ animated: Bool) {
         super.viewWillAppear(animated)
         
-        if captureEnabled {
+        if captureEnabled || shouldResumeCapture {
             self.startCapture()
         }
     }
@@ -199,9 +200,16 @@ class QRCodeScanningViewController: UIViewController, AVCaptureMetadataOutputObj
         // Vibrate
         AudioServicesPlaySystemSound(kSystemSoundID_Vibrate)
 
-        self.scanDelegate?.controller(self, didDetectQRCodeWith: qrCode) { [weak self] in
+        self.scanDelegate?.controller(
-            self?.startCapture()
+            self,
-        }
+            didDetectQRCodeWith: qrCode,
+            onSuccess: { [weak self] in
+                self?.shouldResumeCapture = true
+            },
+            onError: { [weak self] in
+                self?.startCapture()
+            }
+        )
     }
 }
 
@@ -212,7 +220,7 @@ struct QRCodeScanningVC_SwiftUI: UIViewControllerRepresentable {
     typealias UIViewControllerType = QRCodeScanningViewController
     
     let scanQRCodeVC = QRCodeScanningViewController()
-    var didDetectQRCode: (String, (() -> ())?) -> ()
+    var didDetectQRCode: (String, (() -> ())?, (() -> ())?) -> ()
     
     func makeUIViewController(context: Context) -> QRCodeScanningViewController {
         return scanQRCodeVC
@@ -230,19 +238,19 @@ struct QRCodeScanningVC_SwiftUI: UIViewControllerRepresentable {
     }
     
     class Coordinator: NSObject, QRScannerDelegate {
-        var didDetectQRCode: (String, (() -> ())?) -> ()
+        var didDetectQRCode: (String, (() -> ())?, (() -> ())?) -> ()
         
         init(
             scanQRCodeVC: QRCodeScanningViewController,
-            didDetectQRCode: @escaping (String, (() -> ())?) -> ()
+            didDetectQRCode: @escaping (String, (() -> ())?, (() -> ())?) -> ()
         ) {
             self.didDetectQRCode = didDetectQRCode
             super.init()
             scanQRCodeVC.scanDelegate = self
         }
         
-        func controller(_ controller: QRCodeScanningViewController, didDetectQRCodeWith string: String, onError: (() -> ())?) {
+        func controller(_ controller: QRCodeScanningViewController, didDetectQRCodeWith string: String, onSuccess: (() -> ())?, onError: (() -> ())?) {
-            didDetectQRCode(string, onError)
+            didDetectQRCode(string, onSuccess, onError)
         }
     }
 }

Session/Shared/ScanQRCodeScreen.swift

@@ -9,12 +9,12 @@ struct ScanQRCodeScreen: View {
     @Binding var error: String?
     @State var hasCameraAccess: Bool = (AVCaptureDevice.authorizationStatus(for: .video) == .authorized)
     
-    var continueAction: (((() -> ())?) -> Void)?
+    var continueAction: (((() -> ())?, (() -> ())?) -> Void)?
     
     init(
         _ result: Binding<String>,
         error: Binding<String?>,
-        continueAction: (((() -> ())?) -> Void)?
+        continueAction: (((() -> ())?, (() -> ())?) -> Void)?
     ) {
         self._result = result
         self._error = error
@@ -25,9 +25,9 @@ struct ScanQRCodeScreen: View {
         ZStack{
             if hasCameraAccess {
                 VStack {
-                    QRCodeScanningVC_SwiftUI { result, onError in
+                    QRCodeScanningVC_SwiftUI { result, onSuccess, onError in
                         self.result = result
-                        continueAction?(onError)
+                        continueAction?(onSuccess, onError)
                     }
                 }
                 .frame(