com.nostra13.universalimageloader.core.decode
Class BaseImageDecoder
java.lang.Object
com.nostra13.universalimageloader.core.decode.BaseImageDecoder
- All Implemented Interfaces:
- ImageDecoder
public class BaseImageDecoder
- extends Object
- implements ImageDecoder
Decodes images to Bitmap
, scales them to needed size
- Since:
- 1.8.3
- Author:
- Sergey Tarasevich (nostra13[at]gmail[dot]com)
- See Also:
ImageDecodingInfo
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
LOG_SUBSAMPLE_IMAGE
protected static final String LOG_SUBSAMPLE_IMAGE
- See Also:
- Constant Field Values
LOG_SCALE_IMAGE
protected static final String LOG_SCALE_IMAGE
- See Also:
- Constant Field Values
LOG_ROTATE_IMAGE
protected static final String LOG_ROTATE_IMAGE
- See Also:
- Constant Field Values
LOG_FLIP_IMAGE
protected static final String LOG_FLIP_IMAGE
- See Also:
- Constant Field Values
ERROR_CANT_DECODE_IMAGE
protected static final String ERROR_CANT_DECODE_IMAGE
- See Also:
- Constant Field Values
loggingEnabled
protected final boolean loggingEnabled
BaseImageDecoder
public BaseImageDecoder(boolean loggingEnabled)
- Parameters:
loggingEnabled
- Whether debug logs will be written to LogCat. Usually should match ImageLoaderConfiguration.writeDebugLogs()
decode
public android.graphics.Bitmap decode(ImageDecodingInfo decodingInfo)
throws IOException
- Decodes image from URI into
Bitmap
. Image is scaled close to incoming target size
during decoding (depend on incoming parameters).
- Specified by:
decode
in interface ImageDecoder
- Parameters:
decodingInfo
- Needed data for decoding image
- Returns:
- Decoded bitmap
- Throws:
IOException
- if some I/O exception occurs during image reading
UnsupportedOperationException
- if image URI has unsupported scheme(protocol)
getImageStream
protected InputStream getImageStream(ImageDecodingInfo decodingInfo)
throws IOException
- Throws:
IOException
defineImageSizeAndRotation
protected BaseImageDecoder.ImageFileInfo defineImageSizeAndRotation(InputStream imageStream,
ImageDecodingInfo decodingInfo)
throws IOException
- Throws:
IOException
defineExifOrientation
protected BaseImageDecoder.ExifInfo defineExifOrientation(String imageUri)
prepareDecodingOptions
protected android.graphics.BitmapFactory.Options prepareDecodingOptions(ImageSize imageSize,
ImageDecodingInfo decodingInfo)
resetStream
protected InputStream resetStream(InputStream imageStream,
ImageDecodingInfo decodingInfo)
throws IOException
- Throws:
IOException
considerExactScaleAndOrientatiton
protected android.graphics.Bitmap considerExactScaleAndOrientatiton(android.graphics.Bitmap subsampledBitmap,
ImageDecodingInfo decodingInfo,
int rotation,
boolean flipHorizontal)
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