onTap property
Called when the user taps on the render object.
Implementation
GestureTapCallback get onTap => _onTap;
Implementation
set onTap(GestureTapCallback value) {
if (_onTap == value)
return;
final bool hadHandler = _onTap != null;
_onTap = value;
if ((value != null) != hadHandler)
markNeedsSemanticsUpdate();
}