public override void TouchesEnded(NSSet touches, UIEvent evt)
{
base.TouchesEnded(touches, evt);
foreach (UITouch touch in touches.Cast <UITouch>())
{
// Get polyline from dictionary and remove it from dictionary
FingerPaintPolyline polyline = inProgressPolylines[touch.Handle];
inProgressPolylines.Remove(touch.Handle);
// Add final point to path and save with completed polylines
polyline.Path.AddLineToPoint(touch.LocationInView(this));
completedPolylines.Add(polyline);
}
SetNeedsDisplay();
}
public override void TouchesBegan(NSSet touches, UIEvent evt)
{
base.TouchesBegan(touches, evt);
foreach (UITouch touch in touches.Cast <UITouch>())
{
// Create a FingerPaintPolyline, set the initial point, and store it
FingerPaintPolyline polyline = new FingerPaintPolyline
{
Color = StrokeColor,
StrokeWidth = StrokeWidth,
StrokeAlpha = 0.3f
};
polyline.Path.MoveToPoint(touch.LocationInView(this));
inProgressPolylines.Add(touch.Handle, polyline);
}
SetNeedsDisplay();
}