Image Orientation – Android

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You need to account for all orientations not just 90 or 180. I am using this

    File curFile = new File("path-to-file"); // ... This is an image file from my device.
    Bitmap rotatedBitmap;

            try {
                ExifInterface exif = new ExifInterface(curFile.getPath());
                int rotation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL);
                int rotationInDegrees = exifToDegrees(rotation);
                Matrix matrix = new Matrix();
                if (rotation != 0f) {matrix.preRotate(rotationInDegrees);}
                rotatedBitmap = Bitmap.createBitmap(bitmap,0,0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);


            }catch(IOException ex){
                Log.e(TAG, "Failed to get Exif data", ex);
            }

and:

 /**
 * Gets the Amount of Degress of rotation using the exif integer to determine how much
 * we should rotate the image.
 * @param exifOrientation - the Exif data for Image Orientation
 * @return - how much to rotate in degress
 */
private static int exifToDegrees(int exifOrientation) {
    if (exifOrientation == ExifInterface.ORIENTATION_ROTATE_90) { return 90; }
    else if (exifOrientation == ExifInterface.ORIENTATION_ROTATE_180) {  return 180; }
    else if (exifOrientation == ExifInterface.ORIENTATION_ROTATE_270) {  return 270; }
    return 0;
}

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