createIosWidget method
Implementation
@override
CupertinoButton createIosWidget(BuildContext context) {
return CupertinoButton(
child: isLoading ? PlatformProgressIndicator() : Text(text!),
onPressed: onPressed,
padding: const EdgeInsets.symmetric(horizontal: 16.0, vertical: 14.0),
color: color ?? Theme.of(context).cupertinoOverrideTheme?.primaryColor,
);
}