It is recommended to ensure that the width and height of these elements are at least 48dp

[calcitem]

All elements on the screen that the user can click, touch, or otherwise interact with should be moderately sized to ensure reliable interaction. It is recommended to ensure that the width and height of these elements are at least 48dp.

But after adjustment, you need to slide.

          SimpleDialogOption(
            padding:
                const EdgeInsets.symmetric(vertical: 16.0 /* 8.0 */, horizontal: 24.0),
            child: Text(S.of(context).close),
            onPressed: () => Navigator.pop(context),
          ),