GestureLongPressCallback typedef Null safety
Callback signature for LongPressGestureRecognizer.onLongPress.
Called when a pointer has remained in contact with the screen at the same location for a long period of time.
See also:
- GestureDetector.onLongPress, which matches this signature.
- GestureLongPressStartCallback, which is the same signature but with details of where the long press occurred.
Implementation
typedef GestureLongPressCallback = void Function();