Answers

• mattleibow ZAXamarin Team Xamurai

  October 2016 Accepted Answer

  @ttt.5443, thanks for having a look at SkiaSharp. There are several ways, the easiest might be to just use one of he new SkiaSharp Views: http://forums.xamarin.com/discussion/80325/announcing-skiasharp-v1-54-1-and-skiasharp-views

  This will allow you to draw onto a canvas. This is great, but as it is a "live" canvas, drawing will happen if the canvas changes for some reason (resized, invalidated) If the image is going to be a static image (fixed size, drawn once), then you can cache the image.

  This can be done by creating a new SKSurface and then taking a snapshot, saving that to disk/stream and displaying that:

  // crate a nice surface
  var surface = SKSurface.Create(new SKImageInfo(100, 100));
  
  // all drawing happens via a canvas
  var canvas = surface.Canvas;
  // canvas.DoDraw();
  canvas.Flush();
  
  // take a snapshot of the current surface state
  var image = surface.Snapshot();
  
  // encode the snapshot (default is PNG)
  var data = image.Encode();
  
  // create the Xamarin.Forms image source
  var imageSource = ImageSource.FromStream(() => data.AsStream());
  

  That should do it... Let me know if this is what you are looking for.

  5
• ttt.5443 USMember ✭

  October 2016

  OK It works. Thanks Matthew.

  1