diff --git a/suixinkan/AppDelegate.swift b/suixinkan/AppDelegate.swift
index 87fa38c..1017f41 100644
--- a/suixinkan/AppDelegate.swift
+++ b/suixinkan/AppDelegate.swift
@@ -10,7 +10,8 @@ import UIKit
 @main
 class AppDelegate: UIResponder, UIApplicationDelegate {
 
-
+    /// 兼容部分 Objective-C SDK 通过 UIApplicationDelegate.window 访问主窗口的场景。
+    @objc var window: UIWindow?
 
     func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
         UmengBootstrap.configureIfNeeded()
diff --git a/suixinkan/SceneDelegate.swift b/suixinkan/SceneDelegate.swift
index 9c0ef58..1499d2d 100644
--- a/suixinkan/SceneDelegate.swift
+++ b/suixinkan/SceneDelegate.swift
@@ -22,12 +22,16 @@ class SceneDelegate: UIResponder, UIWindowSceneDelegate {
         window.rootViewController = AppRouter.makeRootViewController()
         window.makeKeyAndVisible()
         self.window = window
+        (UIApplication.shared.delegate as? AppDelegate)?.window = window
 
         registerNotifications()
     }
 
     func sceneDidDisconnect(_ scene: UIScene) {
         NotificationCenter.default.removeObserver(self)
+        if (UIApplication.shared.delegate as? AppDelegate)?.window === window {
+            (UIApplication.shared.delegate as? AppDelegate)?.window = nil
+        }
     }
 
     private func registerNotifications() {