Constructor Detail

• BitmapDrawableDecoder

  BitmapDrawableDecoder(Context context, ResourceDecoder<DataType, Bitmap> decoder)

• BitmapDrawableDecoder

  BitmapDrawableDecoder(Resources resources, BitmapPool bitmapPool, ResourceDecoder<DataType, Bitmap> decoder)

• BitmapDrawableDecoder

  BitmapDrawableDecoder(Resources resources, ResourceDecoder<DataType, Bitmap> decoder)

Method Detail

• handles

   boolean handles(@NonNull() DataType source, @NonNull() Options options)

  Returns {@code true} if this decoder is capable of decoding the given source with the givenoptions, and {@code false} otherwise.

  Decoders should make a best effort attempt to quickly determine if they are likely to beable to decode data, but should not attempt to completely read the given data. A typicalimplementation would check the file headers verify they match content the decoder expects tohandle (i.e. a GIF decoder should verify that the image contains the GIF header block.

  Decoders that return {@code true} from {@code handles} may still return {@code null} from decode if the data is partial or formatted incorrectly.

• decode

   Resource<BitmapDrawable> decode(@NonNull() DataType source, int width, int height, @NonNull() Options options)

  Returns a decoded resource from the given data or null if no resource could be decoded.

  The {@code source} is managed by the caller, there's no need to close it. The returned Resource will be released when the engine sees fit.

  Note - The {@code width} and {@code height} arguments are hints only, there is norequirement that the decoded resource exactly match the given dimensions. A typical use casewould be to use the target dimensions to determine how much to downsample Bitmaps by to avoidoverly large allocations.

  Parameters:

  source - The data the resource should be decoded from.

  width - The ideal width in pixels of the decoded resource, or to indicate the original resourcewidth.

  height - The ideal height in pixels of the decoded resource, or to indicate the original resourceheight.

  options - A map of string keys to objects that may or may not contain options available tothis particular implementation.