isPointerAllowed method Null safety

  1. @protected
bool isPointerAllowed(
  1. PointerDownEvent event

Checks whether or not a pointer is allowed to be tracked by this recognizer.


bool isPointerAllowed(PointerDownEvent event) {
  // Currently, it only checks for device kind. But in the future we could check
  // for other things e.g. mouse button.
  return _supportedDevices == null || _supportedDevices!.contains(event.kind);