Model- The type of Model that we can retrieve data for, e.g.
Data- The type of data that can be opened, e.g.
public final class DataUrlLoader<Model,Data> extends java.lang.Object implements ModelLoader<Model,Data>
Data URIs use the "data" scheme.
See http://www.ietf.org/rfc/rfc2397.txt for a complete description of the 'data' URL scheme.
Briefly, a 'data' URL has the form:
|Modifier and Type||Class and Description|
Allows decoding a specific type of data from a Data URL String.
Factory for loading
|Constructor and Description|
|Modifier and Type||Method and Description|
Returns true if the given model is a of a recognized type that this loader can probably load.
public ModelLoader.LoadData<Data> buildLoadData(@NonNull Model model, int width, int height, @NonNull Options options)
DataFetcherrequired to decode the resource represented by this model, as well as a set of
Keysthat identify the data loaded by the
DataFetcheras well as an optional list of alternate keys from which equivalent data can be loaded. The
DataFetcherwill not be used if the resource is already cached.
Note - If no valid data fetcher can be returned (for example if a model has a null URL), then it is acceptable to return a null data fetcher from this method.
model- The model representing the resource.
width- The width in pixels of the view or target the resource will be loaded into, or
Target.SIZE_ORIGINALto indicate that the resource should be loaded at its original width.
height- The height in pixels of the view or target the resource will be loaded into, or
Target.SIZE_ORIGINALto indicate that the resource should be loaded at its original height.
public boolean handles(@NonNull Model model)
For example, you may want multiple Uri -> InputStream loaders. One might handle media store Uris, another might handle asset Uris, and a third might handle file Uris etc.
This method is generally expected to do no I/O and complete quickly, so best effort results
ModelLoaders that return true from this method may return
ModelLoader.buildLoadData(Object, int, int, Options)