private Bitmap tryLoadBitmap() throws TaskCancelledException {
File imageFile = getImageFileInDiscCache();
Bitmap bitmap = null;
try {
String cacheFileUri = Scheme.FILE.wrap(imageFile.getAbsolutePath());
if (imageFile.exists()) {
log(LOG_LOAD_IMAGE_FROM_DISC_CACHE);
loadedFrom = LoadedFrom.DISC_CACHE;
checkTaskNotActual();
bitmap = decodeImage(cacheFileUri);
}
if (bitmap == null || bitmap.getWidth() <= 0 || bitmap.getHeight() <= 0) {
log(LOG_LOAD_IMAGE_FROM_NETWORK);
loadedFrom = LoadedFrom.NETWORK;
String imageUriForDecoding =
options.isCacheOnDisc() && tryCacheImageOnDisc(imageFile) ? cacheFileUri : uri;
checkTaskNotActual();
bitmap = decodeImage(imageUriForDecoding);
if (bitmap == null || bitmap.getWidth() <= 0 || bitmap.getHeight() <= 0) {
fireFailEvent(FailType.DECODING_ERROR, null);
}
}
} catch (IllegalStateException e) {
fireFailEvent(FailType.NETWORK_DENIED, null);
} catch (TaskCancelledException e) {
throw e;
} catch (IOException e) {
L.e(e);
fireFailEvent(FailType.IO_ERROR, e);
if (imageFile.exists()) {
imageFile.delete();
}
} catch (OutOfMemoryError e) {
L.e(e);
fireFailEvent(FailType.OUT_OF_MEMORY, e);
} catch (Throwable e) {
L.e(e);
fireFailEvent(FailType.UNKNOWN, e);
}
return bitmap;
}
/** Decodes image file into Bitmap, resize it and save it back */
private boolean resizeAndSaveImage(File targetFile, int maxWidth, int maxHeight)
throws IOException {
// Decode image file, compress and re-save it
ImageSize targetImageSize = new ImageSize(maxWidth, maxHeight);
DisplayImageOptions specialOptions =
new DisplayImageOptions.Builder()
.cloneFrom(options)
.imageScaleType(ImageScaleType.IN_SAMPLE_INT)
.build();
ImageDecodingInfo decodingInfo =
new ImageDecodingInfo(
memoryCacheKey,
Scheme.FILE.wrap(targetFile.getAbsolutePath()),
targetImageSize,
ViewScaleType.FIT_INSIDE,
getDownloader(),
specialOptions);
Bitmap bmp = decoder.decode(decodingInfo);
if (bmp != null && configuration.processorForDiscCache != null) {
log(LOG_PROCESS_IMAGE_BEFORE_CACHE_ON_DISC);
bmp = configuration.processorForDiscCache.process(bmp);
if (bmp == null) {
L.e(ERROR_PROCESSOR_FOR_DISC_CACHE_NULL, memoryCacheKey);
}
}
if (bmp != null) {
OutputStream os = new BufferedOutputStream(new FileOutputStream(targetFile), BUFFER_SIZE);
try {
bmp.compress(
configuration.imageCompressFormatForDiscCache,
configuration.imageQualityForDiscCache,
os);
} finally {
IoUtils.closeSilently(os);
}
bmp.recycle();
}
return true;
}
