The Shimmer Effect is special effect to indicate loading status. It is an alternative to progress bar to show loading progress.
A picture is worth a thousand words:-
If you are interested to reuse the source code of the screen, please check out the shimmer_effect branch of the git repository hosted at https://github.com/limcheekin/fluwix. Feel free to fork the repository and send me pull request.
I'd love to hear from you. :)