Package com.bumptech.glide.load.model

Class DataUrlLoader<Model,Data>

java.lang.Object

com.bumptech.glide.load.model.DataUrlLoader<Model,Data>

Type Parameters:

Model - The type of Model that we can retrieve data for, e.g. String.

Data - The type of data that can be opened, e.g. InputStream.

All Implemented Interfaces:

ModelLoader<Model,Data>

public final class DataUrlLoader<Model,Data>
extends java.lang.Object
implements ModelLoader<Model,Data>

A simple model loader for loading data from a Data URL String.

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:

data:[mediatype][;base64],some_data

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	DataUrlLoader.DataDecoder<Data>	Allows decoding a specific type of data from a Data URL String.
static class	DataUrlLoader.StreamFactory<Model>	Factory for loading InputStreams from data uris.

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

ModelLoader.LoadData<Data>

Constructor Summary

Constructors

Constructor	Description
DataUrlLoader(DataUrlLoader.DataDecoder<Data> dataDecoder)

Method Summary

Modifier and Type	Method	Description
ModelLoader.LoadData<Data>	buildLoadData(Model 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(Model 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

DataUrlLoader

public DataUrlLoader(DataUrlLoader.DataDecoder<Data> dataDecoder)

Method Detail

buildLoadData

public ModelLoader.LoadData<Data> buildLoadData(@NonNull
                                                Model model,
                                                int width,
                                                int height,
                                                @NonNull
                                                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<Model,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(@NonNull
                       Model 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 to 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<Model,Data>