launch method

@override Future<void> launch(String url, { String? androidPackageName, })

Launch a URL. Opens in the native app if it handles the URL, otherwise opens in the default browser.

On Android, androidPackageName targets the specific app package so the system resolver doesn't open a different app (e.g. Go vs Maps). Complete only once handoff is accepted. Throw MapHandoffException only for confirmed rejection; other exceptions stop fallback because the outcome is unknown. A blocked popup must be marked blocked, not retried.

Implementation

@override
Future<void> launch(String url, {String? androidPackageName}) async {
  final uri = Uri.tryParse(url);
  if (uri == null ||
      (uri.scheme != 'https' && uri.scheme != 'http') ||
      uri.host.isEmpty ||
      url.contains('\u0000')) {
    throw ArgumentError.value(
      url,
      'url',
      'Desktop maps require an HTTP(S) URL',
    );
  }
  final ProcessResult result;
  if (Platform.isMacOS) {
    result = await Process.run('open', [url]);
  } else if (Platform.isWindows) {
    result = await Process.run('powershell.exe', windowsLaunchArguments(url));
  } else if (Platform.isLinux) {
    result = await Process.run('xdg-open', [url]);
  } else {
    throw UnsupportedError(
      'MapLauncherDesktop does not support ${Platform.operatingSystem}',
    );
  }
  if (result.exitCode != 0) {
    throw Exception('Failed to launch URL: ${result.stderr}');
  }
}