load abstract method
- String key
Retrieve a binary resource from the asset bundle as a data stream.
Throws an exception if the asset is not found.
ByteData can be converted to a Uint8List (a list of bytes)
using Uint8List.sublistView. Lists of bytes can be used with APIs that
accept Uint8List objects, such as decodeImageFromList, as well as any
API that accepts a List<int>, such as File.writeAsBytes or
Utf8Codec.decode (accessible via utf8).
Future<ByteData> load(String key);