Java script not working on Acrobat app

Hi does anyone know how make Java script work on Acrobat mobile app for showing and hiding fields when a check box is selected?

var nHide = event.target.isBoxChecked(0)?display.visible:display.hidden;

this.getField("platinum").display = nHide;

this.getField("platinum_price").display = nHide;

this.getField("audio_plat").display = nHide;

This completely works on desktop but when testing on Acrobat app, its not working.

Please let me know how to solve this. 

Thanks!