class DialogExample extends StatelessWidget with DialogMixin {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: ElevatedButton(
        onPressed: () {
          showAlertDialog(
              context,
              "Delete",
              "Are you sure want to delete ?",
              "yes",
              "no",
                  (val) {});
        },
        child: Text("Delete"),
      ),
    );
  }
}