Data - The type of data that will be retrieved for Uris.public class UriLoader<Data> extends Object implements ModelLoader<Uri,Data>
Uris that handles local Uris
directly and routes remote Uris to a wrapped
ModelLoader that handles
GlideUrls.| Modifier and Type | Class and Description |
|---|---|
static class |
UriLoader.FileDescriptorFactory
Loads
ParcelFileDescriptors from Uris. |
static interface |
UriLoader.LocalUriFetcherFactory<Data>
Factory for obtaining a
DataFetcher for a data type for a particular Uri. |
static class |
UriLoader.StreamFactory
Loads
InputStreams from Uris. |
ModelLoader.LoadData<Data>| Constructor and Description |
|---|
UriLoader(UriLoader.LocalUriFetcherFactory<Data> factory) |
| Modifier and Type | Method and Description |
|---|---|
ModelLoader.LoadData<Data> |
buildLoadData(Uri model,
int width,
int height,
Options options)
Returns a
ModelLoader.LoadData containing a
DataFetcher required to decode the resource
represented by this model, as well as a set of Keys that
identify the data loaded by the DataFetcher as well as an
optional list of alternate keys from which equivalent data can be loaded. |
boolean |
handles(Uri model)
Returns true if the given model is a of a recognized type that this loader can probably load.
|
public UriLoader(UriLoader.LocalUriFetcherFactory<Data> factory)
public ModelLoader.LoadData<Data> buildLoadData(Uri model, int width, int height, Options options)
ModelLoaderModelLoader.LoadData containing a
DataFetcher required to decode the resource
represented by this model, as well as a set of Keys that
identify the data loaded by the DataFetcher as well as an
optional list of alternate keys from which equivalent data can be loaded. The
DataFetcher will 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.
buildLoadData in interface ModelLoader<Uri,Data>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_ORIGINAL to 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_ORIGINAL to indicate that
the resource should be loaded at its original height.public boolean handles(Uri model)
ModelLoaderFor 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 are acceptable. ModelLoaders that return true from this method may
return null from ModelLoader.buildLoadData(Object, int, int, Options)
handles in interface ModelLoader<Uri,Data>