【需求】ios推送初始化

 import Flutter
 import UIKit
+import UserNotifications
 
+@objc(FlutterPushPlugin)
 public class FlutterPushPlugin: NSObject, FlutterPlugin {
     public static func register(with registrar: FlutterPluginRegistrar) {
-    let channel = FlutterMethodChannel(name: "flutter_push", binaryMessenger: registrar.messenger())
+        let channel = FlutterMethodChannel(name: "ewin:flutter_push", binaryMessenger: registrar.messenger())
         let instance = FlutterPushPlugin()
         registrar.addMethodCallDelegate(instance, channel: channel)
     }
 
-  public func handle(_ call: FlutterMethodCall, result: @escaping FlutterResult) {
+    @objc public func handle(_ call: FlutterMethodCall, result: @escaping FlutterResult) {
         switch call.method {
         case "getPlatformVersion":
             result("iOS " + UIDevice.current.systemVersion)
+        case "init":
+            print("init初始化")
+            // 初始化
+            DispatchQueue.main.async {
+                UIApplication.shared.registerForRemoteNotifications()
+            }
+            result(true)
+        case "checkPermission":
+            print("checkPermission检测权限")
+            UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .sound, .badge]) { granted, _ in
+                if granted {
+                    print("有通知权限")
+                } else {
+                    print("无用通知权限")
+                }
+            }
+            result(true)
+        case "getPermission":
+            print("getPermission跳转设置获取权限")
+            if #available(iOS 15.0, *) {
+                // iOS 15 及以上版本，直接跳转到通知设置页面
+                if let url = URL(string: "App-Prefs:NOTIFICATIONS_ID") {
+                    UIApplication.shared.open(url, options: [:], completionHandler: nil)
+                }
+            } else {
+                // iOS 15 以下版本，跳转到应用的设置页面
+                if let url = URL(string: UIApplication.openSettingsURLString) {
+                    UIApplication.shared.open(url, options: [:], completionHandler: nil)
+                }
+            }
+            result(true)
         default:
             result(FlutterMethodNotImplemented)
         }