WeatherMaster/lib/utils/open_links.dart

import 'package:url_launcher/url_launcher.dart';
import 'dart:async';

Future<void> openLink(String urlString) async {
  final Uri url = Uri.parse(urlString);

  if (!await launchUrl(url, mode: LaunchMode.externalApplication)) {
    throw Exception('Could not launch $url');
  }
}