public override void ViewWillAppear(bool animated)
{
base.ViewWillAppear(animated);
Canvas = new PKEventingCanvasView {
BackgroundColor = UIColor.LightTextColor, TranslatesAutoresizingMaskIntoConstraints = false
};
View.AddSubview(Canvas);
View.AddConstraints(new[]
{
NSLayoutConstraint.Create(Canvas, NSLayoutAttribute.CenterX, NSLayoutRelation.Equal, View, NSLayoutAttribute.CenterX, 1, 0),
NSLayoutConstraint.Create(Canvas, NSLayoutAttribute.Bottom, NSLayoutRelation.Equal, View, NSLayoutAttribute.BottomMargin, 1, -50),
NSLayoutConstraint.Create(Canvas, NSLayoutAttribute.Width, NSLayoutRelation.Equal, 1, 300),
NSLayoutConstraint.Create(Canvas, NSLayoutAttribute.Height, NSLayoutRelation.Equal, 1, 200),
});
var window = GetWindow();
var tool = PKToolPicker.GetSharedToolPicker(window);
tool.SetVisible(true, Canvas);
tool.AddObserver(Canvas);
Canvas.BecomeFirstResponder();
Canvas.OnImage = img => BackgroundView.BackgroundColor = UIColor.FromPatternImage(img);
CreateAndAnimateBackground();
}
public static void DrawOnto(this PKEventingCanvasView canvasView, SCNNode node) => canvasView.OnImage = img =>
{
if (img is null)
{
return;
}
node.Geometry.FirstMaterial.Diffuse.Contents = img;
};
private void SetupCanvas()
{
Canvas = new PKEventingCanvasView {
TranslatesAutoresizingMaskIntoConstraints = false
};
Canvas.ContentSize = new CGSize(160, 160);
View.AddSubview(Canvas);
var window = GetWindow();
var tool = PKToolPicker.GetSharedToolPicker(window);
tool.SetVisible(true, Canvas);
tool.AddObserver(Canvas);
var dialog = new EBDialogViewController();
EBDialogView = dialog.View;
View.AddSubview(dialog.View);
View.AddConstraints(new[]
{
NSLayoutConstraint.Create(dialog.View, NSLayoutAttribute.Bottom, NSLayoutRelation.Equal, View, NSLayoutAttribute.Bottom, 1, -20),
NSLayoutConstraint.Create(dialog.View, NSLayoutAttribute.CenterX, NSLayoutRelation.Equal, View, NSLayoutAttribute.CenterX, 1, 0),
NSLayoutConstraint.Create(dialog.View, NSLayoutAttribute.Width, NSLayoutRelation.Equal, 1, 220),
NSLayoutConstraint.Create(dialog.View, NSLayoutAttribute.Height, NSLayoutRelation.Equal, 1, 220),
});
dialog.SetContent(Canvas);
dialog.View.AddConstraints(new[]
{
NSLayoutConstraint.Create(Canvas, NSLayoutAttribute.Height, NSLayoutRelation.Equal, 1, 160)
});
dialog.View.Transform = CGAffineTransform.MakeTranslation(0, 800);
}
