download method

  1. @override
Future<File> download(
  1. String url,
  2. String name,
  3. {void onProgress(
    1. int total,
    2. int downloaded,
    3. double percent
    )?}
)
override

Downloads a file from a given url to the temporary directory with the given name.

Returns a future that resolves to the downloaded File.

Use onProgress to get notified about the download progress

  • total is the total number of bytes to download
  • downloaded is the number of bytes that have been downloaded so far
  • percent is the percentage of the download that has been completed (between 0 and 1)

Throws an Exception if the download fails.

Implementation

@override
Future<File> download(
  String url,
  String name, {
  void Function(int total, int downloaded, double percent)? onProgress,
}) async {
  final dir = await getTemporaryDirectory();
  final file = File('${dir.path}/$name');

  await dio.download(
    url,
    file.path,
    onReceiveProgress: (count, total) {
      onProgress?.call(total, count, count / total);
    },
  );

  if (!file.existsSync()) throw Exception('Download failed');

  return file;
}