obtainKey method Null safety

  1. @override
Future<PravatarImage> obtainKey(
  1. ImageConfiguration configuration

Converts an ImageProvider's settings plus an ImageConfiguration to a key that describes the precise image to load.

The type of the key is determined by the subclass. It is a value that unambiguously identifies the image (including its scale) that the load method will fetch. Different ImageProviders given the same constructor arguments and ImageConfiguration objects should return keys that are '==' to each other (possibly by using a class for the key that itself implements ==).


Future<PravatarImage> obtainKey(ImageConfiguration configuration) {
  return SynchronousFuture<PravatarImage>(this);