saveFile method

Future<String?> saveFile(String argFilepath, String? argDestinationfilename)

Silent saving file into:

• Downloads directory (only Android)
• Document folder (only IOS) - downloaded files will be showed in Files App on iOS

Parameters:

• filePath - absolute source file path.
• destinationFileName - file name with extension (e.g. file.pdf)

Implementation

Future<String?> saveFile(
  String argFilepath,
  String? argDestinationfilename,
) async {
  final BasicMessageChannel<Object?> channel = BasicMessageChannel<Object?>(
    'dev.flutter.pigeon.FileSaverApi.saveFile',
    codec,
    binaryMessenger: _binaryMessenger,
  );
  final Map<Object?, Object?>? replyMap =
      await channel.send(<Object?>[argFilepath, argDestinationfilename])
          as Map<Object?, Object?>?;
  if (replyMap == null) {
    throw PlatformException(
      code: 'channel-error',
      message: 'Unable to establish connection on channel.',
    );
  } else if (replyMap['error'] != null) {
    final Map<Object?, Object?> error =
        (replyMap['error'] as Map<Object?, Object?>?)!;
    throw PlatformException(
      code: (error['code'] as String?)!,
      message: error['message'] as String?,
      details: error['details'],
    );
  } else {
    return (replyMap['result'] as String?);
  }
}