FCM + AppIcon 2

ios/Runner/AppDelegate.swift

@@ -1,4 +1,6 @@
 import Flutter
+import Firebase
+import FirebaseMessaging
 import UIKit
 
 @main
@@ -7,10 +9,24 @@ import UIKit
     _ application: UIApplication,
     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
   ) -> Bool {
+    // Explicitly register for remote notifications on every launch so iOS always
+    // calls didRegisterForRemoteNotificationsWithDeviceToken, ensuring Firebase
+    // receives a fresh APNs token regardless of whether permission was already granted.
+    application.registerForRemoteNotifications()
     return super.application(application, didFinishLaunchingWithOptions: launchOptions)
   }
 
   func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {
     GeneratedPluginRegistrant.register(with: engineBridge.pluginRegistry)
   }
+
+  // FlutterImplicitEngineDelegate can interfere with Firebase's method swizzling,
+  // preventing it from capturing the APNs token. Forward it explicitly instead.
+  override func application(
+    _ application: UIApplication,
+    didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data
+  ) {
+    Messaging.messaging().apnsToken = deviceToken
+    super.application(application, didRegisterForRemoteNotificationsWithDeviceToken: deviceToken)
+  }
 }