bool ignoring

Whether this render object is ignored during hit testing.

Regardless of whether this render object is ignored during hit testing, it will still consume space during layout and be visible during painting.

Source 

bool get ignoring => _ignoring;
void ignoring=(bool value)

Source 

set ignoring(bool value) {
  assert(value != null);
  if (value == _ignoring)
    return;
  _ignoring = value;
  if (ignoringSemantics == null)
    markNeedsSemanticsUpdate();
}