ExifInterface class is used to retreive rotation information and etc.
But it only supports: JPEG, TIFF, RIFF, WAV
It does not support: GIF, PNG
On Android 2.0+, you can get & set following attributes:
ExifInterface.TAG_DATETIME
ExifInterface.TAG_FLASH
ExifInterface.TAG_FOCAL_LENGTH
ExifInterface.TAG_GPS_DATESTAMP
ExifInterface.TAG_GPS_LATITUDE
ExifInterface.TAG_GPS_LATITUDE_REF
ExifInterface.TAG_GPS_LONGITUDE
ExifInterface.TAG_GPS_LONGITUDE_REF
ExifInterface.TAG_GPS_PROCESSING_METHOD
ExifInterface.TAG_GPS_TIMESTAMP
ExifInterface.TAG_IMAGE_LENGTH
ExifInterface.TAG_IMAGE_WIDTH
ExifInterface.TAG_MAKE
ExifInterface.TAG_MODEL
ExifInterface.TAG_ORIENTATION
ExifInterface.TAG_WHITE_BALANCE
example:
ExifInterface
exif = null;
try {exif = new ExifInterface(filepath);
if (exif != null) {
exif.setAttribute(ExifInterface.TAG_ORIENTATION,
Integer.toString(ExifInterface.ORIENTATION_ROTATE_90));
exif.saveAttributes();
}
} catch (IOException ex) {
}