A bunch of UIGraphics methods were deprecated in iOS 17 with no clear replacement?

I have a piece of code where I use the UIGraphics methods and it seems that the three methods that I was using are all deprecated.

This is a piece of Xamarin.iOS code but I am sure Swift users can help here too, can anyone help me out with what the new methods for these are I am trying to google for this but I don't seem to be getting any straight clues as to what replacement is for these methods.

The following three methods have been deprecated;

    UIGraphics.BeginImageContextWithOptions(size, false, ScreenDensity);
    var image = UIGraphics.GetImageFromCurrentImageContext();
    UIGraphics.EndImageContext();

The full piece of code is as follows, not sure if this helps though...

private UIImage CreateBufferImage()
{
    if (paths is null || paths.Count == 0)
    {
        return null;
    }

    var size = Bounds.Size;
    UIGraphics.BeginImageContextWithOptions(size, false, ScreenDensity);
    var context = UIGraphics.GetCurrentContext();

    context.SetLineCap(CGLineCap.Round);
    context.SetLineJoin(CGLineJoin.Round);

    foreach (var path in paths)
    {
        context.SetStrokeColor(path.Color.CGColor);
        context.SetLineWidth(path.Width);

        context.AddPath(path.Path.CGPath);
        context.StrokePath();

        path.IsDirty = false;
    }

    var image = UIGraphics.GetImageFromCurrentImageContext();

    UIGraphics.EndImageContext();

    return image;
}

Thanks

Solution

You should now use the UIGraphicsImageRenderer API to draw images.

var renderer = new UIGraphicsImageRenderer(size, new UIGraphicsImageRendererFormat {
    Opaque = false,
    Scale = ScreenDensity
});

You should pass in an Action<UIGraphicsImageRendererContext> to CreateImage to draw your image. The image will be returned by CreateImage.

var image = renderer.CreateImage(imageContext => {
    // if you want a CGContext, you can get that from the CGContext property
    var cgcontext = imageContext.CGContext;

    // drawing code here...
});