import { EventData } from '@nativescript/core/data/observable'; import { Page } from '@nativescript/core/ui/page'; import { Button } from '@nativescript/core/ui/button'; import { StackLayout } from '@nativescript/core/ui/layouts/stack-layout'; export function toggle(args: EventData) { const page = (args.object).page; const getElementById = (id) => page.getViewById(id); const toggleBtn =