com.bumptech.glide.load.model

Class FileLoader<Data>

java.lang.Object

com.bumptech.glide.load.model.FileLoader<Data>

Type Parameters:

Data - The type of data loaded from the given File (InputStream or FileDescriptor etc).

All Implemented Interfaces:

ModelLoader<File,Data>

public class FileLoader<Data>
extends Object
implements ModelLoader<File,Data>

A simple model loader for loading data from Files.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	FileLoader.Factory<Data> Base factory for loading data from files.
static class	FileLoader.FileDescriptorFactory Factory for loading ParcelFileDescriptors from Files.
static interface	FileLoader.FileOpener<Data> Allows opening a specific type of data from a File.
static class	FileLoader.StreamFactory Factory for loading InputStreams from Files.

Nested classes/interfaces inherited from interface com.bumptech.glide.load.model.ModelLoader

ModelLoader.LoadData<Data>

Constructor Summary

Constructors

Constructor and Description
FileLoader(FileLoader.FileOpener<Data> fileOpener)

Method Summary

Modifier and Type	Method and Description
ModelLoader.LoadData<Data>	buildLoadData(File 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(File model) Returns true if the given model is a of a recognized type that this loader can probably load.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FileLoader

public FileLoader(FileLoader.FileOpener<Data> fileOpener)

Method Detail

buildLoadData

public ModelLoader.LoadData<Data> buildLoadData(File model,
                                                int width,
                                                int height,
                                                Options options)

Description copied from interface: ModelLoader

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. 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.

Specified by:

buildLoadData in interface ModelLoader<File,Data>

Parameters:

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.

handles

public boolean handles(File model)

Description copied from interface: ModelLoader

Returns true if the given model is a of a recognized type that this loader can probably load.

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)

Specified by:

handles in interface ModelLoader<File,Data>