URI from Intent.ACTION_GET_CONTENT into File

I've done this method to convert Uri from Intent.ACTION_GET_CONTENT to real path:

public static String getRealPathFromUri(Activity activity, Uri contentUri) {
    String[] proj = { MediaStore.Images.Media.DATA };
    Cursor cursor = activity.managedQuery(contentUri, proj, null, null, null);
    int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
    cursor.moveToFirst();
    return cursor.getString(column_index);
}

Which in turn converted into File:

Uri filePathFromActivity = (Uri) extras.get(Intent.EXTRA_STREAM);
filePathFromActivity = Uri.parse(FileUtil.getRealPathFromUri( (Activity) IntentActivity.this, filePathFromActivity));
File imageFile = new File(filePathFromActivity.getPath());