onScaleUpdate abstract method

Future<void> onScaleUpdate(
  1. Vector2 focalPoint,
  2. Vector2 focalPointDelta,
  3. double horizontalScale,
  4. double verticalScale,
  5. double scale,
  6. int pointerCount,
  7. double rotation,
  8. Duration? sourceTimestamp,
)

Implementation

Future<void> onScaleUpdate(Vector2 focalPoint, Vector2 focalPointDelta, double horizontalScale, double verticalScale, double scale, int pointerCount, double rotation, Duration? sourceTimestamp);