fix: crash fix

ios/Push.swift

@@ -3,15 +3,16 @@ import NotificationCenter
 import React
 
 @objc(Push)
-public class Push: RCTEventEmitter {
+final public class Push: RCTEventEmitter {
 
     private var notificationCallbackDictionary: [String: () -> Void] = [:]
-    private var isInitialized = false
-    private var queue: [Action] = []
-
-    @objc public override init() {
-        super.init()
-        UNUserNotificationCenter.current().delegate = self
+    private static var isInitialized = false
+    @objc public static var emitter: RCTEventEmitter?
+    private static var queue: [Action] = []
+
+    override public init() {
+      super.init()
+      Self.emitter = self
     }
 
     enum NotificationType: String, CaseIterable {
@@ -23,30 +24,32 @@ public class Push: RCTEventEmitter {
         let payload: Any!
     }
 
-    private func sendStoreAction(_ action: Action) {
-        self.sendEvent(withName: action.type.rawValue, body: action.payload)
+    private static func sendStoreAction(_ action: Action) {
+        if let emitter = self.emitter {
+            emitter.sendEvent(withName: action.type.rawValue, body: action.payload)
+        }
     }
 
-    @objc public func dispatch(type: String, payload: Any!) {
+    @objc public static func dispatch(type: String, payload: Any!) {
         let actionObj = Action(type: .init(rawValue: type) ?? .errorReceived, payload: payload)
         if isInitialized {
-            self.sendStoreAction(actionObj)
+            sendStoreAction(actionObj)
         } else {
-            self.queue.append(actionObj)
+            queue.append(actionObj)
         }
     }
 
     @objc public override func startObserving() {
-        isInitialized = true
-        for event in queue {
-            sendStoreAction(event)
-        }
-        queue = []
-    }
-
-    @objc public override func stopObserving() {
-        isInitialized = false
-    }
+          Self.isInitialized = true
+          for event in Self.queue {
+              Self.sendStoreAction(event)
+          }
+          Self.queue = []
+      }
+      
+      @objc public override func stopObserving() {
+          Self.isInitialized = false
+      }
 
     public override func supportedEvents() -> [String]! {
         return NotificationType.allCases.map { $0.rawValue }
@@ -104,58 +107,58 @@ public class Push: RCTEventEmitter {
 
 extension Push: UNUserNotificationCenterDelegate {
 
-    func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
+    public func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
         let tokenParts = deviceToken.map { data -> String in
             return String(format: "%02x", data)
         }
         let token = tokenParts.joined()
-        dispatch(type: NotificationType.deviceTokenReceived.rawValue, payload: token)
+        Self.dispatch(type: NotificationType.deviceTokenReceived.rawValue, payload: token)
     }
 
-    func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
-        dispatch(
+    public func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
+        Self.dispatch(
             type: NotificationType.errorReceived.rawValue,
             payload: error.localizedDescription
         )
     }
 
     public func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
         let uuid = UUID().uuidString
-        dispatch(
+        Self.dispatch(
             type: NotificationType.notificationReceived.rawValue,
             payload: ["payload": notification.request.content.userInfo, "uuid": uuid, "kind": "foreground"]
         )
         notificationCallbackDictionary[uuid] = {
             completionHandler([.badge, .banner, .sound, .list])
         }
-        DispatchQueue.main.asyncAfter(deadline: .now() + 29) { [weak self] in
-            if let callback = self?.notificationCallbackDictionary[uuid] {
+        DispatchQueue.main.asyncAfter(deadline: .now() + 29) {
+            if let callback = self.notificationCallbackDictionary[uuid] {
                 callback()
-                self?.notificationCallbackDictionary.removeValue(forKey: uuid)
+                self.notificationCallbackDictionary.removeValue(forKey: uuid)
             }
         }
     }
 
     public func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse) async {
-        dispatch(
+        Self.dispatch(
             type: NotificationType.notificationReceived.rawValue,
             payload: ["payload": response.notification.request.content.userInfo, "kind": "opened"]
         )
     }
 
-    func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
+    public func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
         let uuid = UUID().uuidString
-        dispatch(
+        Self.dispatch(
             type: NotificationType.notificationReceived.rawValue,
             payload: ["payload": userInfo, "uuid": uuid, "kind": "background"]
         )
         notificationCallbackDictionary[uuid] = {
             completionHandler(.newData)
         }
-        DispatchQueue.main.asyncAfter(deadline: .now() + 29) { [weak self] in
-            if let callback = self?.notificationCallbackDictionary[uuid] {
+        DispatchQueue.main.asyncAfter(deadline: .now() + 29) {
+            if let callback = self.notificationCallbackDictionary[uuid] {
                 callback()
-                self?.notificationCallbackDictionary.removeValue(forKey: uuid)
+                self.notificationCallbackDictionary.removeValue(forKey: uuid)
             }
         }
     }