pass isTestnet bool as int

example/lib/main.dart

@@ -64,7 +64,7 @@ class _MyAppState extends State<MyApp> {
       final diversifier = int.parse(diversifierController.text);
 
       String address = await _flutterLibsparkmobilePlugin.getAddress(
-          keyData, index, diversifier);
+          keyData, index, diversifier, isTestnet);
       addressController.text = address;
 
       if (kDebugMode) {
@@ -234,15 +234,24 @@ class _MyAppState extends State<MyApp> {
                       ),
                     ),
                   ),
-                  // Checkbox(
-                  //   value: isTestnet,
-                  //   onChanged: (bool? newValue) {
-                  //     setState(() {
-                  //       isTestnet = newValue ?? true;
-                  //     });
-                  //   },
-                  // ),
-                  // const Text('Testnet'),
+                  Expanded(
+                    child: Container(
+                      padding: const EdgeInsets.only(bottom: 22),
+                      child: Row(
+                        children: [
+                          Checkbox(
+                            value: isTestnet,
+                            onChanged: (bool? newValue) {
+                              setState(() {
+                                isTestnet = newValue ?? true;
+                              });
+                            },
+                          ),
+                          const Text('Testnet'),
+                        ],
+                      ),
+                    ),
+                  ),
                 ],
               ),
               const SizedBox(height: 20),

lib/flutter_libsparkmobile.dart

@@ -19,7 +19,7 @@ class FlutterLibsparkmobile {
 
   /// Derive an address from the keyData (mnemonic).
   Future<String> getAddress(
-      List<int> keyData, int index, int diversifier) async {
+      List<int> keyData, int index, int diversifier, bool isTestNet) async {
     // Validate that the keyData is 32 bytes.
     if (keyData.length != 32) {
       throw 'Key data must be 32 bytes.';
@@ -30,8 +30,8 @@ class FlutterLibsparkmobile {
     final keyDataPointer = keyDataHex.toNativeUtf8().cast<Char>();
 
     // Call the native method with the pointer.
-    final addressPointer =
-        _bindings.getAddress(keyDataPointer, index, diversifier);
+    final addressPointer = _bindings.getAddress(
+        keyDataPointer, index, diversifier, isTestNet ? 1 : 0);
 
     // Convert the Pointer<Char> to a Dart String.
     final addressString = addressPointer.cast<Utf8>().toDartString();

lib/flutter_libsparkmobile_bindings.dart

@@ -26,18 +26,20 @@ class SparkMobileBindings {
     ffi.Pointer<ffi.Char> keyDataHex,
     int index,
     int diversifier,
+    int isTestNet,
   ) {
     return _getAddress(
       keyDataHex,
       index,
       diversifier,
+      isTestNet,
     );
   }
 
   late final _getAddressPtr = _lookup<
       ffi.NativeFunction<
           ffi.Pointer<ffi.Char> Function(
-              ffi.Pointer<ffi.Char>, ffi.Int, ffi.Int)>>('getAddress');
+              ffi.Pointer<ffi.Char>, ffi.Int, ffi.Int, ffi.Int)>>('getAddress');
   late final _getAddress = _getAddressPtr.asFunction<
-      ffi.Pointer<ffi.Char> Function(ffi.Pointer<ffi.Char>, int, int)>();
+      ffi.Pointer<ffi.Char> Function(ffi.Pointer<ffi.Char>, int, int, int)>();
 }