InkResponse({Key key, Widget child, GestureTapCallback onTap, GestureTapCallback onDoubleTap, GestureLongPressCallback onLongPress, ValueChanged<bool> onHighlightChanged, bool containedInkWell: false, BoxShape highlightShape: BoxShape.circle, double radius })

Creates an area of a Material that responds to touch.

Must have an ancestor Material widget in which to cause ink reactions.

Source 

InkResponse({
  Key key,
  this.child,
  this.onTap,
  this.onDoubleTap,
  this.onLongPress,
  this.onHighlightChanged,
  this.containedInkWell: false,
  this.highlightShape: BoxShape.circle,
  this.radius,
}) : super(key: key);