getAvatar method
- String? filename
override
Downloads a user's avatar from NTUT Portal.
If filename is omitted or empty, the server returns a dynamically
generated placeholder avatar (a colored square with the user's name).
Returns the avatar image as raw bytes.
Implementation
@override
Future<Uint8List> getAvatar([String? filename]) async {
return avatarResult ?? Uint8List(0);
}