GestureLongPressMoveUpdateCallback typedef Null safety

void GestureLongPressMoveUpdateCallback(
  1. LongPressMoveUpdateDetails details
)

Callback signature for LongPressGestureRecognizer.onLongPressMoveUpdate.

Called when a pointer is moving after being held in contact at the same location for a long period of time. Reports the new position and its offset from the original down position.

Implementation

typedef GestureLongPressMoveUpdateCallback = void Function(LongPressMoveUpdateDetails details);