Creates a widget that detects gestures.
By default, gesture detectors contribute semantic information to the tree that is used by assistive technology.
Source
RawGestureDetector({
Key key,
this.child,
this.gestures: const <Type, GestureRecognizerFactory>{},
this.behavior,
this.excludeFromSemantics: false
}) : super(key: key) {
assert(gestures != null);
assert(excludeFromSemantics != null);
}