Move CallExampleContext ownership to the AppDelegate. When receiving a PushIncoming call, register (else call won’t work)

swift/CallKitTutorial/CallKitTutorial/AppDelegate.swift

@@ -7,11 +7,12 @@
 //
 
 import UIKit
+import SwiftUI
 
 @UIApplicationMain
 class AppDelegate: UIResponder, UIApplicationDelegate {
 
-
+    @ObservedObject var tutorialContext = CallExampleContext()
 
     func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
         // Override point for customization after application launch.

swift/CallKitTutorial/CallKitTutorial/CallExample.swift

@@ -43,6 +43,7 @@ class CallExampleContext : ObservableObject
     let outgoingCallName = "Outgoing call example"
     let incomingCallName = "Incoming call example"
     
+    
     init()
     {
         mProviderDelegate = CallKitProviderDelegate(context : self)
@@ -60,13 +61,12 @@ class CallExampleContext : ObservableObject
         
         // Initialize Linphone Core
         
-        try? mCore = factory.createCore(configPath: "MyConfig", factoryConfigPath: "", systemContext: nil)
+        try? mCore = factory.createCore(configPath: "", factoryConfigPath: "", systemContext: nil)
 
         // main loop for receiving notifications and doing background linphonecore work:
         mCore.autoIterateEnabled = true
         mCore.callkitEnabled = true
         mCore.pushNotificationEnabled = true
-
         
         let pushConfig = mCore.pushNotificationConfig!
         pushConfig.provider = "apns.dev"
@@ -106,6 +106,12 @@ class CallExampleContext : ObservableObject
         }
     }
     
+    func clearRegistrations()
+    {
+        mCore.clearProxyConfig()
+        loggedIn = false
+    }
+    
     
     func createCallParams() throws -> CallParams
     {
@@ -213,6 +219,11 @@ class CallStateDelegate: CoreDelegate {
         
         if (cstate == .PushIncomingReceived)
         {
+            if (!tutorialContext.loggedIn)
+            {
+                // Cannot properly answer call if not registered. If the app was launched from a push notification, register.
+                tutorialContext.registrationExample()
+            }
             // We're being called by someone (and app is in background)
             initIncomingCall()
         }

swift/CallKitTutorial/CallKitTutorial/ContentView.swift

@@ -10,7 +10,7 @@ import SwiftUI
 
 struct ContentView: View {
     
-    @ObservedObject var tutorialContext = CallExampleContext()
+    @ObservedObject var tutorialContext : CallExampleContext
     
     func getCallButtonText() -> String
     {
@@ -62,11 +62,21 @@ struct ContentView: View {
                             .frame(width: 90.0, height: 42.0)
                             .background(Color.gray)
                     }
-                    Text("Login State : ")
+                    Spacer()
+                    Text("Login State :")
                         .font(.footnote)
                     Text(tutorialContext.loggedIn ? "Logged in" : "Unregistered")
                         .font(.footnote)
                         .foregroundColor(tutorialContext.loggedIn ? Color.green : Color.black)
+                    Spacer()
+                    Button(action:  tutorialContext.clearRegistrations)
+                    {
+                        Text("Clear")
+                            .font(.largeTitle)
+                            .foregroundColor(Color.white)
+                            .frame(width: 90.0, height: 42.0)
+                            .background(Color.gray)
+                    }
                 }
             }
             VStack(spacing: 0.0) {
@@ -150,6 +160,6 @@ struct ContentView: View {
 
 struct ContentView_Previews: PreviewProvider {
     static var previews: some View {
-        ContentView()
+        ContentView(tutorialContext: CallExampleContext())
     }
 }

swift/CallKitTutorial/CallKitTutorial/SceneDelegate.swift

@@ -20,8 +20,10 @@ class SceneDelegate: UIResponder, UIWindowSceneDelegate {
         // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
 
         // Create the SwiftUI view that provides the window contents.
-        let contentView = ContentView()
-
+        let delegate = UIApplication.shared.delegate as! AppDelegate
+        
+        let contentView = ContentView(tutorialContext: delegate.tutorialContext)
+        
         // Use a UIHostingController as window root view controller.
         if let windowScene = scene as? UIWindowScene {
             let window = UIWindow(windowScene: windowScene)