android更新：4.4.2更改exifInterface总是返回0

Question

在我的应用程序中，我可以选择照片（纵向/横向），并在此代码的帮助下以原始方向显示照片：

public int getCameraPhotoOrientation(Context context, Uri imageUri, String imagePath) {
    int rotate = 0;
    context.getContentResolver().notifyChange(imageUri, null);
    File imageFile = new File(imagePath);

    try {
        ExifInterface exif;
        exif = new ExifInterface(imageFile.getAbsolutePath());
        int orientation = exif.getAttributeInt(
                ExifInterface.TAG_ORIENTATION,
                ExifInterface.ORIENTATION_NORMAL);
        System.out.println("ExifInterface.TAG_ORIENTATION: "+ ExifInterface.TAG_ORIENTATION
                + "\nExifInterface.ORIENTATION_NORMAL: " + ExifInterface.ORIENTATION_NORMAL);
        switch (orientation) {
        case ExifInterface.ORIENTATION_ROTATE_270:
            rotate = 270;
            break;
        case ExifInterface.ORIENTATION_ROTATE_180:
            rotate = 180;
            break;
        case ExifInterface.ORIENTATION_ROTATE_90:
            rotate = 90;
            break;

        }

    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    return rotate;
}

然后我将我的Sony手机更新为4.4.2，现在它的返回值始终为0。 在我的System.out.println中，我检查orientation_normal，它始终为1（横向/纵向）。 这是我称之为方法的地方：

            selectedImageUri = data.getData();
            screenShotUri = selectedImageUri;
            selectedImagePath = getPath(selectedImageUri);
            String fullPath = selectedImagePath;
            if (fullPath==null){
                return;
            }
            int index = fullPath.lastIndexOf("/");
            String fileNameUpperCase = fullPath.substring(index + 1);

            fileName = fileNameUpperCase.toLowerCase();

            pathTextView.setText("" + selectedImagePath);
            imageView.setVisibility(View.VISIBLE);
            imageView.setImageURI(selectedImageUri);
            int rotate = controller.getCameraPhotoOrientation(this,
                    selectedImageUri, selectedImagePath);

这是我旋转照片的地方：

if (rotate == 90) {
                Matrix matrix = new Matrix();
                matrix.postRotate(90);
                bmp = Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(),
                        bmp.getHeight(), matrix, true);
                imageView.setRotation(90f);
            } else if (rotate == 180) {
                Matrix matrix = new Matrix();
                matrix.postRotate(180);
                bmp = Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(),
                        bmp.getHeight(), matrix, true);
                imageView.setRotation(180f);
            } else if (rotate == 270) {
                Matrix matrix = new Matrix();
                matrix.postRotate(270);
                bmp = Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(),
                        bmp.getHeight(), matrix, true);
                imageView.setRotation(270f);
            }