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- All Implemented Interfaces:
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com.mobwith.imgmodule.load.model.ModelLoader
public class ByteArrayLoader<Data> implements ModelLoader<Array<byte>, Data>
A base class to convert byte arrays to input streams so they can be decoded. This class is abstract because there is no simple/quick way to generate an id from the bytes themselves, so subclass must include an id.
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Nested Class Summary
Nested Classes Modifier and Type Class Description public interfaceByteArrayLoader.ConverterConverts between a byte array a desired model class.
public classByteArrayLoader.ByteBufferFactoryFactory for com.mobwith.imgmodule.load.model.ByteArrayLoader and .
public classByteArrayLoader.StreamFactoryFactory for ByteArrayLoader and InputStream.
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Constructor Summary
Constructors Constructor Description ByteArrayLoader(ByteArrayLoader.Converter<Data> converter)
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Method Summary
Modifier and Type Method Description ModelLoader.LoadData<Data>buildLoadData(@NonNull() Array<byte> model, int width, int height, @NonNull() Options options)Returns a com.mobwith.imgmodule.load.model.ModelLoader.LoadData containing a required to decode the resource represented by thismodel, as well as a set of Keys that identify the dataloaded by the com.mobwith.imgmodule.load.data.DataFetcher as well as an optional list ofalternate keys from which equivalent data can be loaded. booleanhandles(@NonNull() Array<byte> model)Returns true if the given model is a of a recognized type that this loader can probably load. -
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Constructor Detail
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ByteArrayLoader
ByteArrayLoader(ByteArrayLoader.Converter<Data> converter)
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Method Detail
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buildLoadData
ModelLoader.LoadData<Data> buildLoadData(@NonNull() Array<byte> model, int width, int height, @NonNull() Options options)
Returns a com.mobwith.imgmodule.load.model.ModelLoader.LoadData containing a required to decode the resource represented by thismodel, as well as a set of Keys that identify the dataloaded by the com.mobwith.imgmodule.load.data.DataFetcher as well as an optional list ofalternate keys from which equivalent data can be loaded. The DataFetcher will not beused 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.
- Parameters:
model- The model representing the resource.width- The width in pixels of the view or target the resource will be loaded into, orSIZE_ORIGINAL to indicate that theresource should be loaded at its original width.height- The height in pixels of the view or target the resource will be loaded into, orSIZE_ORIGINAL to indicate that theresource should be loaded at its original height.
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handles
boolean handles(@NonNull() Array<byte> model)
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 storeUris, 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 resultsare acceptable. ModelLoaders that return true from this method may return
{@code null}from buildLoadData
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