generateKeychainUUID method

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

Future<String?> generateKeychainUUID() {
  throw UnimplementedError(
    'generateKeychainUUID() has not been implemented.',
  );
}