chore: update Flutter SDK demo to 1.12.0

lib/main.dart

@@ -15,6 +15,7 @@ void main() {
       environmentId: '0322a696-4207-48c6-9ed4-ffb0aa896090',
       appLogoUrl: 'https://demo.dynamic.xyz/favicon-32x32.png',
       appName: 'Dynamic Demo',
+      appOrigin: 'https://demo.dynamic.xyz',
       redirectUrl: "flutterdemo://",
     ),
   );

lib/views/home_view.dart

@@ -125,9 +125,7 @@ class HomeView extends StatelessWidget {
 
                         return Column(
                           children: wallets
-                              .map(
-                                (wallet) => _buildWalletCard(context, wallet),
-                              )
+                              .map((wallet) => WalletCard(wallet: wallet))
                               .toList(),
                         );
                       },
@@ -173,8 +171,18 @@ class HomeView extends StatelessWidget {
       ],
     );
   }
+}
+
+class WalletCard extends StatelessWidget {
+  final BaseWallet wallet;
+
+  const WalletCard({super.key, required this.wallet});
+
+  @override
+  Widget build(BuildContext context) {
+    final isAuthenticated = wallet.isAuthenticated ?? false;
+    final additionalAddresses = wallet.additionalAddresses ?? const [];
 
-  Widget _buildWalletCard(BuildContext context, BaseWallet wallet) {
     return Container(
       margin: const EdgeInsets.only(bottom: 12),
       padding: const EdgeInsets.all(12),
@@ -207,7 +215,7 @@ class HomeView extends StatelessWidget {
               Container(
                 padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
                 decoration: BoxDecoration(
-                  color: Colors.blue.withOpacity(0.1),
+                  color: Colors.blue.withValues(alpha: 0.1),
                   borderRadius: BorderRadius.circular(12),
                 ),
                 child: Text(
@@ -245,25 +253,25 @@ class HomeView extends StatelessWidget {
           Row(
             children: [
               Icon(
-                wallet.isAuthenticated ? Icons.verified : Icons.warning,
-                color: wallet.isAuthenticated ? Colors.green : Colors.orange,
+                isAuthenticated ? Icons.verified : Icons.warning,
+                color: isAuthenticated ? Colors.green : Colors.orange,
                 size: 16,
               ),
               const SizedBox(width: 4),
               Text(
-                wallet.isAuthenticated ? 'Authenticated' : 'Not Authenticated',
+                isAuthenticated ? 'Authenticated' : 'Not Authenticated',
                 style: TextStyle(
-                  color: wallet.isAuthenticated ? Colors.green : Colors.orange,
+                  color: isAuthenticated ? Colors.green : Colors.orange,
                   fontSize: 12,
                   fontWeight: FontWeight.w500,
                 ),
               ),
             ],
           ),
-          if (wallet.additionalAddresses.isNotEmpty) ...[
+          if (additionalAddresses.isNotEmpty) ...[
             const SizedBox(height: 8),
             Text(
-              'Additional Addresses: ${wallet.additionalAddresses.length}',
+              'Additional Addresses: ${additionalAddresses.length}',
               style: const TextStyle(
                 color: Colors.grey,
                 fontSize: 12,

lib/views/wallet_view.dart

@@ -41,18 +41,23 @@ class _WalletViewState extends State<WalletView> {
     });
     try {
       final bal = await DynamicSDK.instance.wallets.getBalance(wallet: wallet);
+      if (!mounted) return;
+
       setState(() {
         _balance = bal;
       });
     } catch (e) {
+      if (!mounted) return;
+
       setState(() {
         _error = e.toString();
       });
     } finally {
-      if (!mounted) return;
-      setState(() {
-        _loadingBalance = false;
-      });
+      if (mounted) {
+        setState(() {
+          _loadingBalance = false;
+        });
+      }
     }
   }
 
@@ -201,6 +206,8 @@ class _WalletViewState extends State<WalletView> {
       final transactionHash = await DynamicSDK.instance.web3dart
           .sendTransaction(transaction: transaction, wallet: wallet);
 
+      if (!mounted) return;
+
       setState(() {
         _lastTxHash = transactionHash;
       });
@@ -209,17 +216,20 @@ class _WalletViewState extends State<WalletView> {
         const SnackBar(content: Text('Mint transaction submitted')),
       );
     } catch (e) {
+      if (!mounted) return;
+
       setState(() {
         _error = e.toString();
       });
       ScaffoldMessenger.of(
         context,
       ).showSnackBar(SnackBar(content: Text('Mint failed: $e')));
     } finally {
-      if (!mounted) return;
-      setState(() {
-        _busy = false;
-      });
+      if (mounted) {
+        setState(() {
+          _busy = false;
+        });
+      }
     }
   }
 
@@ -413,7 +423,7 @@ class _WalletHeader extends StatelessWidget {
               Container(
                 padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
                 decoration: BoxDecoration(
-                  color: Colors.blue.withOpacity(0.1),
+                  color: Colors.blue.withValues(alpha: 0.1),
                   borderRadius: BorderRadius.circular(12),
                 ),
                 child: Text(
@@ -430,6 +440,8 @@ class _WalletHeader extends StatelessWidget {
                 tooltip: 'Copy address',
                 onPressed: () async {
                   await Clipboard.setData(ClipboardData(text: wallet.address));
+                  if (!context.mounted) return;
+
                   ScaffoldMessenger.of(context).showSnackBar(
                     const SnackBar(
                       content: Text('Address copied to clipboard'),

macos/Flutter/GeneratedPluginRegistrant.swift

@@ -6,18 +6,30 @@ import FlutterMacOS
 import Foundation
 
 import desktop_webview_window
-import flutter_secure_storage_macos
+import device_info_plus
+import file_picker
+import flutter_secure_storage_darwin
 import flutter_web_auth_2
+import package_info_plus
+import passkeys_darwin
 import path_provider_foundation
+import share_plus
+import ua_client_hints
 import url_launcher_macos
 import webview_flutter_wkwebview
 import window_to_front
 
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
   DesktopWebviewWindowPlugin.register(with: registry.registrar(forPlugin: "DesktopWebviewWindowPlugin"))
-  FlutterSecureStoragePlugin.register(with: registry.registrar(forPlugin: "FlutterSecureStoragePlugin"))
+  DeviceInfoPlusMacosPlugin.register(with: registry.registrar(forPlugin: "DeviceInfoPlusMacosPlugin"))
+  FilePickerPlugin.register(with: registry.registrar(forPlugin: "FilePickerPlugin"))
+  FlutterSecureStorageDarwinPlugin.register(with: registry.registrar(forPlugin: "FlutterSecureStorageDarwinPlugin"))
   FlutterWebAuth2Plugin.register(with: registry.registrar(forPlugin: "FlutterWebAuth2Plugin"))
+  FPPPackageInfoPlusPlugin.register(with: registry.registrar(forPlugin: "FPPPackageInfoPlusPlugin"))
+  PasskeysPlugin.register(with: registry.registrar(forPlugin: "PasskeysPlugin"))
   PathProviderPlugin.register(with: registry.registrar(forPlugin: "PathProviderPlugin"))
+  SharePlusMacosPlugin.register(with: registry.registrar(forPlugin: "SharePlusMacosPlugin"))
+  UAClientHintsPlugin.register(with: registry.registrar(forPlugin: "UAClientHintsPlugin"))
   UrlLauncherPlugin.register(with: registry.registrar(forPlugin: "UrlLauncherPlugin"))
   WebViewFlutterPlugin.register(with: registry.registrar(forPlugin: "WebViewFlutterPlugin"))
   WindowToFrontPlugin.register(with: registry.registrar(forPlugin: "WindowToFrontPlugin"))