systemScreen method

@override Future<String> systemScreen({ String imageName = "myimage", ImageFormat fileExtension = ImageFormat.jpeg, DownloadLocation location = DownloadLocation.temporaryDirectory, })

before using homeScreen, lockScreen , bothScreen, systemScreen . we need to download image . imageName -> after downloading image name to be saved so when using home screen, etc we can pass this name and location location where the image is downloaded

Implementation

@override
Future<String> systemScreen({
  String imageName = "myimage",
  ImageFormat fileExtension = ImageFormat.jpeg,
  DownloadLocation location = DownloadLocation.temporaryDirectory,
}) async {
  final String resultvar = await methodChannel
      .invokeMethod('SystemWallpaper', {
        'location': location.index,
        'imageName': imageName,
        'fileExtension': _imageFormatToExtension(fileExtension),
      });
  return resultvar;
}