@Override
        protected void onPostExecuteInternal(final List<Download> result) {
            final Activity activity = activityRef.get();
            if (activity != null) {
                if (result.isEmpty()) {
                    ViewUtils.showShortToast(activity, R.string.no_updates_found);
                } else {
                    triggerDownloads(activity, R.string.updates_check, R.string.download_confirmation_updates, result, null);
                }
            }
        }
displays an info to the user to check for updates
if button pressed: checks whether updates are available for the type specified
if yes: ask user to download them all
if yes: trigger download(s)
main/src/main/java/cgeo/geocaching/downloader/DownloaderUtils.java