private void dropCache() {
        if (ProgressBarDisposableHandler.isInProgress(this) || progress.isShowing()) {
            showToast(res.getString(R.string.err_detail_still_working));
            return;
        }
        final ChangeNotificationHandler handler = new ChangeNotificationHandler(this);
        handler.showProgress();
        cache.drop(handler);
    }
Enum of all possible pages with methods to get the view and a title.
main/src/main/java/cgeo/geocaching/CacheDetailActivity.java