protected override void OnDraw(Canvas canvas) { if (ScoreSource == null) { if (XmlSource == null) { return; } ScoreSource = XmlSource.ToScore(); } _innerScore = ScoreSource; if (ScoreSource == null) { return; } Renderer = new AndroidScoreRenderer(canvas); Renderer.Settings.IsPanoramaMode = IsPanoramaMode; Renderer.Render(_innerScore); }