obtainKey method
- @override
override
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 ==
).
Implementation
@override
Future<AssetBundleImageKey> obtainKey(ImageConfiguration configuration) {
return SynchronousFuture<AssetBundleImageKey>(AssetBundleImageKey(
bundle: bundle ?? configuration.bundle ?? rootBundle,
name: keyName,
scale: scale
));
}