diff --git a/NFCLockDemoV2/MainPage.xaml.cs b/NFCLockDemoV2/MainPage.xaml.cs
index 6a18fea..bf13a89 100644
--- a/NFCLockDemoV2/MainPage.xaml.cs
+++ b/NFCLockDemoV2/MainPage.xaml.cs
@@ -66,12 +66,16 @@ public partial class MainPage : ContentPage
         InitializeComponent();
         _mainMainViewModel = mainViewModel;
         BindingContext = _mainMainViewModel;
-    
+    }
+
+    protected override void OnAppearing()
+    {
+        base.OnAppearing();
 #if IOS
         SetNFCCallbacks();
 #endif
     }
-
+    
     private void LockClicked(object? sender, EventArgs e)
     {
 #if IOS
diff --git a/NFCLockDemoV2/Platforms/iOS/Info.plist b/NFCLockDemoV2/Platforms/iOS/Info.plist
index d867286..bae4984 100644
--- a/NFCLockDemoV2/Platforms/iOS/Info.plist
+++ b/NFCLockDemoV2/Platforms/iOS/Info.plist
@@ -30,5 +30,11 @@
 	<string>Assets.xcassets/appicon.appiconset</string>
 	<key>NFCReaderUsageDescription</key>
 	<string>此应用需要使用NFC功能来与智能锁设备通信</string>
+	<key>UIBackgroundModes</key>
+	<array>
+		<string>fetch</string>
+		<!-- 如果需要 NFC 后台操作，添加： -->
+		<string>nfc-tag-reading</string>
+	</array>
 </dict>
 </plist>