protected InputStream resetStream(InputStream imageStream, ImageDecodingInfo decodingInfo)
throws IOException {
try {
imageStream.reset();
} catch (IOException e) {
IoUtils.closeSilently(imageStream);
imageStream = getImageStream(decodingInfo);
}
return imageStream;
}
/**
* Decodes image from URI into {@link Bitmap}. Image is scaled close to incoming {@linkplain
* ImageSize target size} during decoding (depend on incoming parameters).
*
* @param decodingInfo Needed data for decoding image
* @return Decoded bitmap
* @throws IOException if some I/O exception occurs during image reading
* @throws UnsupportedOperationException if image URI has unsupported scheme(protocol)
*/
@Override
public Bitmap decode(ImageDecodingInfo decodingInfo) throws IOException {
Bitmap decodedBitmap;
ImageFileInfo imageInfo;
InputStream imageStream = getImageStream(decodingInfo);
try {
imageInfo = defineImageSizeAndRotation(imageStream, decodingInfo);
imageStream = resetStream(imageStream, decodingInfo);
Options decodingOptions = prepareDecodingOptions(imageInfo.imageSize, decodingInfo);
decodedBitmap = BitmapFactory.decodeStream(imageStream, null, decodingOptions);
} finally {
IoUtils.closeSilently(imageStream);
}
if (decodedBitmap == null) {
L.e(ERROR_CANT_DECODE_IMAGE, decodingInfo.getImageKey());
} else {
decodedBitmap =
considerExactScaleAndOrientatiton(
decodedBitmap, decodingInfo, imageInfo.exif.rotation, imageInfo.exif.flipHorizontal);
}
return decodedBitmap;
}