Dynamic slide: Unshift items into model of a slide-box

Hi All,
I’m trying to dynamically change the data model of a slide-box(slides are generated by ng-repeat) so that slides can grow. Push items to the end of the array works well. But unshift items into it will cause the inserted slide to be the showing slide instantly, I’m wondering is there any good solution to it currently?
The issue is the same with https://github.com/driftyco/ionic/issues/1215