Creates a pointer up event.
All of the argument must be non-null.
Source
const PointerUpEvent({ Duration timeStamp: Duration.ZERO, int pointer: 0, PointerDeviceKind kind: PointerDeviceKind.touch, int device: 0, Point position: Point.origin, int buttons: 0, bool obscured: false, double pressureMin: 1.0, double pressureMax: 1.0, double distance: 0.0, double distanceMax: 0.0, double radiusMin: 0.0, double radiusMax: 0.0, double orientation: 0.0, double tilt: 0.0 }) : super( timeStamp: timeStamp, pointer: pointer, kind: kind, device: device, position: position, buttons: buttons, down: false, obscured: obscured, pressureMin: pressureMin, pressureMax: pressureMax, distance: distance, distanceMax: distanceMax, radiusMin: radiusMin, radiusMax: radiusMax, orientation: orientation, tilt: tilt );