예제 #1
0
            public override bool OnScale(ScaleGestureDetector detector)
            {
                float span = detector.CurrentSpan;

                float newFactor = _zoomAndPanView.ZoomFactor * span / _lastSpan;

                _lastSpan = span;

                _zoomAndPanView.ChangeZoom(
                    zoomFactor: newFactor,
                    zoomCenterX: detector.FocusX,
                    zoomCenterY: detector.FocusY);
                _zoomAndPanView._didScrollOrZoomFromTouch = true;

                return(true);
            }