generateKeychainUUID method

@override Future<String?> generateKeychainUUID()

生成钥匙串UUID iOS专属接口 如果已成在则返回现有UUID，否则生成新的UUID并存储

Implementation

@override
Future<String?> generateKeychainUUID() async {
  final result = await methodChannel.invokeMethod<String?>(
    'generateKeychainUUID',
  );
  return result;
}