Flutter- adjust the custom button tap area

Question

    Widget customButton() {
    return Container(
      child: InkWell(
        onTap: () {},
        child: Container(
          height: 100,
          width: 100,
          decoration: BoxDecoration(
            color: Colors.amber,
            shape: BoxShape.circle,
          ),
          child: Icon(Icons.auto_fix_normal),
        ),
      ),
    );
  }

I'm trying to create custom button with inkwell, but button can tapping from the outside of the button . How i can adjust the button tap area ?

Answer 1

Using customBorder: CircleBorder(), on InkWell fixed the splash effect, but to work it properly I am extending the snippet.

 Widget customButton() {
      return Container(
        decoration: const BoxDecoration(
          shape: BoxShape.circle,
        ),
        child: Material(
          color: Colors.orange,
          shape: const CircleBorder(),
          child: InkWell(
            splashColor: Colors.black,
            onTap: () {},
            customBorder: const CircleBorder(),
            child: Ink(
              decoration: const BoxDecoration(shape: BoxShape.circle),
              height: 100,
              width: 100,
              child: const Icon(Icons.holiday_village),
            ),
          ),
        ),
      );
    }