isInstalled method
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;
}