Xamarin

• Xamarin

The Accord.NET Image Processing and Machine Learning Framework

Accord.NET is a framework for scientific computing in .NET. The framework is comprised of multiple librares encompassing a wide range of scientific computing applications, such as statistical data processing, machine learning, pattern recognition, including but not limited to, computer vision and computer audition. The framework offers a large number of probability distributions, hypothesis tests, kernel functions and support for most popular performance measurements techniques.* Accord .NET Framework

Facial Recognition

Adding Facial Recognition to Your Mobile Apps By Pierce Boggan

• Adding Facial Recognition to Your Mobile Apps
• Learn how to build smarter mobile apps using Microsoft Cognitive Services & Xamarin

SkiaSharp

Fiddles

• Skia Fiddle
• Named Fiddles

Disposable Transform

<syntaxhighlight lang="C#" line='line'>

   using (new Transform(canvas))
   {

   }

   public class Transform : IDisposable
   {
       private readonly SKCanvas _canvas;

       public Transform(SKCanvas canvas)
       {
           _canvas = canvas;
           canvas.Save();
       }

       public void Dispose()
       {
           _canvas.Restore();
       }
   }

</syntaxhighlight >

Transform point from current transformation matrix to original grid

<source lang="cpp">

   // Transform point from current transformation matrix to original grid
   var originalPoints = new[] { new SKPoint(0, 0) };
   var pointInCurrentTransformationMatrix = new[] { new SKPoint(0, 0) };
   canvas.TotalMatrix.MapPoints(originalPoints, pointInCurrentTransformationMatrix);

   // Transform point from original grid to current transformation matrix
   canvas.TotalMatrix.TryInvert(out var inverseMatrix);
   var snappedPixelPointsInCurrentTransformationMatrix = new[] { new SKPoint(0, 0) };
   inverseMatrix.MapPoints(snappedPixelPointsInCurrentTransformationMatrix, originalPoints);

</source>

• Draw Japanese character string with SkiaSharp

• Resize an image and draw some overlay text with SkiaSharp

WPF

• skiasharpwpfextensions

Android

Android services

• Android services
• Part 1 - Started Services
• Started Services with Xamarin.Android

Android Emulator

Android Emulator Hardware Acceleration

• How to prepare your computer for maximum Android SDK Emulator performance

Android Camera

• googlesamples/android-Camera2Video

iOS

• Visual Studio 2017 Version 15.6 Preview Available Today!

Automatic macOS Provisioning

• Remoted iOS Simulator (for Windows)

MvvmCross

• Mvx.Flashlight
• Cheesebaron.MvxPlugins

Bindings

• MvvmCross Binding Target

UWP

• Microsoft.Net.Native.SharedLibrary-x64
• Using SuspensionManager for Saving Application State
• UWP Community Toolkit

Reflection and Default.rd.xml

• Pay attention to .NET Native when using Reflection (MVVM scenario)

Navigation

• Modifying UWP navigation backstack with MvvmCross
• PageStackEntry Class
• Re-implementing WinRT’s navigation system

Migrating ot UWP

• Migrate apps to the Universal Windows Platform (UWP)