Data
- The type of data this loader will obtain.public class AssetUriLoader<Data> extends java.lang.Object implements ModelLoader<android.net.Uri,Data>
Modifier and Type | Class and Description |
---|---|
static interface |
AssetUriLoader.AssetFetcherFactory<Data>
A factory to build a
DataFetcher for a specific asset path. |
static class |
AssetUriLoader.FileDescriptorFactory
Factory for loading
ParcelFileDescriptor s from asset manager Uris. |
static class |
AssetUriLoader.StreamFactory
Factory for loading
InputStream s from asset manager Uris. |
ModelLoader.LoadData<Data>
Constructor and Description |
---|
AssetUriLoader(android.content.res.AssetManager assetManager,
AssetUriLoader.AssetFetcherFactory<Data> factory) |
Modifier and Type | Method and Description |
---|---|
ModelLoader.LoadData<Data> |
buildLoadData(android.net.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(android.net.Uri model)
Returns true if the given model is a of a recognized type that this loader can probably load.
|
public AssetUriLoader(android.content.res.AssetManager assetManager, AssetUriLoader.AssetFetcherFactory<Data> factory)
public ModelLoader.LoadData<Data> buildLoadData(@NonNull android.net.Uri model, int width, int height, @NonNull Options options)
ModelLoader
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. 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<android.net.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(@NonNull android.net.Uri model)
ModelLoader
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
are acceptable. ModelLoaders
that return true from this method may return
null
from ModelLoader.buildLoadData(Object, int, int, Options)
handles
in interface ModelLoader<android.net.Uri,Data>