isInstalled method

Future<bool?> isInstalled(
  1. String packageName
)

Implementation

Future<bool?> isInstalled(String packageName) async {
  if (kIsWeb) {
    return null;
  }
  if (Platform.isIOS) {
    return canLaunchUrl(Uri.parse('$packageName://'));
  }
  if (Platform.isAndroid) {
    return _platform.invokeMethod(
      'installation_checker/is_installed',
      {
        'package_name': packageName,
      },
    );
  }
  return null;
}