angular scroll with animation for accordion mobile

Recently we want to have scroll animation which works with accordion in mobile.
angular-scroll has bugs where it only check the top position instead recheck this every time.

If you have same issue, feel free to try this version.

https://github.com/kkurni/angular-scroll/

https://gist.github.com/kkurni/98e664941ac1c373a3ff

Ps. Thanks to Matt for this.