Local Notification 과 privacy screen 을 추가한 코드 for IOS

AppDelegate.swift

import UIKit
import Flutter

@UIApplicationMain
@objc class AppDelegate: FlutterAppDelegate {
    
  private var flutterViewController: FlutterViewController!
  private var securityChannel: FlutterMethodChannel!
  private var blurEffectView: UIVisualEffectView?
  private var isInBackground: Bool = false // Track whether app is in background

  override func application(
    _ application: UIApplication,
    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
  ) -> Bool {

    if #available(iOS 10.0, *) {
      UNUserNotificationCenter.current().delegate = self as? UNUserNotificationCenterDelegate
    }

    GeneratedPluginRegistrant.register(with: self)
    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
  }
    
    
    private func setupFlutterCommunication() {
      flutterViewController = window?.rootViewController as? FlutterViewController
      securityChannel = FlutterMethodChannel(
        name: "security",
        binaryMessenger: flutterViewController.binaryMessenger
      )

      securityChannel.setMethodCallHandler(handle)
    }

    override func applicationDidEnterBackground(_ application: UIApplication) {
      isInBackground = true // App entered background
      enableAppSecurity()
    }

    override func applicationDidBecomeActive(_ application: UIApplication) {
      // Check if the app was in background before becoming active
      if isInBackground {
        disableAppSecurity()
        isInBackground = false
      }
    }

    private func handle(_ call: FlutterMethodCall, result: @escaping FlutterResult) {
      switch call.method {
      case "enableAppSecurity":
        result(nil)
      case "disableAppSecurity":
        result(nil)
      default:
        result(FlutterMethodNotImplemented)
      }
    }

    private func enableAppSecurity() {
      let blurEffect = UIBlurEffect(style: .light)
      blurEffectView = UIVisualEffectView(effect: blurEffect)
      blurEffectView?.frame = window!.frame
      window?.addSubview(blurEffectView!)
    }

    private func disableAppSecurity() {
      UIView.animate(withDuration: 0.5, animations: {
        self.blurEffectView?.alpha = 0.0
      }) { _ in
        self.blurEffectView?.removeFromSuperview()
      }
    }
    
    
}

gistfile1.txt

import 'dart:developer';

import 'package:flutter/services.dart';

abstract class IAppScreenPrivacy {
  Future<void> enableScreenPrivacy();
  Future<void> disableScreenPrivacy();
}

class AppScreenPrivacyService extends IAppScreenPrivacy {
  static const platform = MethodChannel('security');
  @override
  Future<void> disableScreenPrivacy() async {
    try {
      await platform.invokeMethod('disableAppSecurity');
    } on PlatformException catch (e) {
      log('Failed to disable app security: "${e.message}"');
    }
  }

  @override
  Future<void> enableScreenPrivacy() async {
    try {
      await platform.invokeMethod('enableAppSecurity');
    } on PlatformException catch (e) {
      log('Failed to enable app security: "${e.message}"');
    }
  }
}