NativeScript/apps/automated/app/ui/tab-view/tab-view-tests-native.android.ts

import { TabView } from '@nativescript/core/ui/tab-view';

export function getNativeTabCount(tabView: TabView): number {
	const pagerAdapter: androidx.viewpager.widget.PagerAdapter = (<any>tabView)._pagerAdapter;

	return pagerAdapter ? pagerAdapter.getCount() : 0;
}

export function selectNativeTab(tabView: TabView, index: number): void {
	const viewPager: androidx.viewpager.widget.ViewPager = (<any>tabView)._viewPager;
	if (viewPager) {
		viewPager.setCurrentItem(index);
	}
}

export function getNativeSelectedIndex(tabView: TabView): number {
	const viewPager: androidx.viewpager.widget.ViewPager = (<any>tabView)._viewPager;

	return viewPager ? viewPager.getCurrentItem() : -1;
}

export function getNativeFont(tabView: TabView): any {
	const tv: android.widget.TextView = (<org.nativescript.widgets.TabLayout>(<any>tabView)._tabLayout).getTextViewForItemAt(0);
	if (tv) {
		return {
			typeface: tv.getTypeface(),
			size: tv.getTextSize(),
		};
	}

	return null;
}

export function getOriginalFont(tabView: TabView): any {
	const tv: android.widget.TextView = (<org.nativescript.widgets.TabLayout>(<any>tabView)._tabLayout).getTextViewForItemAt(0);

	return {
		typeface: tv.getTypeface(),
		size: tv.getTextSize(),
	};
}