Update MAUI to RC 1 and use a macOS Monterey pool (#1986)

2022-04-13 10:28:03 +02:00 · 2022-04-13 10:28:03 +02:00 · 486317a7d5
--- a/nuget/SkiaSharp.Views.WinUI.nuspec
+++ b/nuget/SkiaSharp.Views.WinUI.nuspec
@ -31,6 +31,10 @@ Please visit https://go.microsoft.com/fwlink/?linkid=868517 to view the release
        <dependency id="SkiaSharp" version="1.0.0" />
        <dependency id="Microsoft.WindowsAppSDK" version="1.0.0" />
      </group>
+      <group targetFramework="net6.0-windows10.0.18362">
+        <dependency id="SkiaSharp" version="1.0.0" />
+        <dependency id="Microsoft.WindowsAppSDK" version="1.0.0" />
+      </group>
    </dependencies>

  </metadata>
@ -40,6 +44,9 @@ Please visit https://go.microsoft.com/fwlink/?linkid=868517 to view the release
    <file platform="windows" src="lib/net5.0-windows10.0.18362/SkiaSharp.Views.Windows.dll" />
    <file platform="windows" src="lib/net5.0-windows10.0.18362/SkiaSharp.Views.Windows.pdb" />
    <file platform="windows" src="lib/net5.0-windows10.0.18362/SkiaSharp.Views.Windows.xml" />
+    <file platform="windows" src="lib/net6.0-windows10.0.18362/SkiaSharp.Views.Windows.dll" />
+    <file platform="windows" src="lib/net6.0-windows10.0.18362/SkiaSharp.Views.Windows.pdb" />
+    <file platform="windows" src="lib/net6.0-windows10.0.18362/SkiaSharp.Views.Windows.xml" />

    <!-- legal -->
    <file src="LICENSE.txt" />
--- a/samples/Basic/Maui/SkiaSharpSample/MauiProgram.cs
+++ b/samples/Basic/Maui/SkiaSharpSample/MauiProgram.cs
@ -2,6 +2,7 @@
 using Microsoft.Maui.Hosting;
 using Microsoft.Maui.Controls.Hosting;
 using SkiaSharp.Views.Maui.Controls.Hosting;
+using Microsoft.Maui.Controls.Compatibility.Hosting;

 namespace SkiaSharpSample
 {
--- a/samples/Basic/Maui/SkiaSharpSample/Platforms/Windows/App.xaml.cs
+++ b/samples/Basic/Maui/SkiaSharpSample/Platforms/Windows/App.xaml.cs
@ -12,12 +12,5 @@ namespace SkiaSharpSample.WinUI
 		}

 		protected override MauiApp CreateMauiApp() => MauiProgram.CreateMauiApp();
-
-		protected override void OnLaunched(LaunchActivatedEventArgs args)
-		{
-			base.OnLaunched(args);
-
-			Microsoft.Maui.Essentials.Platform.OnLaunched(args);
-		}
 	}
 }
--- a/samples/Basic/Maui/SkiaSharpSample/SkiaSharpSample.csproj
+++ b/samples/Basic/Maui/SkiaSharpSample/SkiaSharpSample.csproj
@ -2,7 +2,7 @@

  <PropertyGroup>
    <TargetFrameworks>net6.0-ios;net6.0-maccatalyst;net6.0-android</TargetFrameworks>
-    <TargetFrameworks Condition="$([MSBuild]::IsOSPlatform('windows')) and '$(MSBuildRuntimeType)' == 'Full'">$(TargetFrameworks);net6.0-windows10.0.19041</TargetFrameworks>
+    <TargetFrameworks Condition="$([MSBuild]::IsOSPlatform('windows')) and '$(MSBuildRuntimeType)' == 'Full'">$(TargetFrameworks);net6.0-windows10.0.19041.0</TargetFrameworks>
    <OutputType>Exe</OutputType>
    <UseMaui>true</UseMaui>
    <SingleProject>true</SingleProject>
@ -18,7 +18,7 @@
    <SupportedOSPlatformVersion Condition="'$(TargetFramework)' == 'net6.0-ios'">14.2</SupportedOSPlatformVersion>
    <SupportedOSPlatformVersion Condition="'$(TargetFramework)' == 'net6.0-maccatalyst'">14.0</SupportedOSPlatformVersion>
    <SupportedOSPlatformVersion Condition="'$(TargetFramework)' == 'net6.0-android'">21.0</SupportedOSPlatformVersion>
-    <SupportedOSPlatformVersion Condition="$(TargetFramework.Contains('-windows'))">10.0.18362.0</SupportedOSPlatformVersion>
+    <SupportedOSPlatformVersion Condition="$(TargetFramework.Contains('-windows'))">10.0.17763.0</SupportedOSPlatformVersion>
  </PropertyGroup>

  <ItemGroup>
@ -37,11 +37,6 @@
    <ProjectReference Include="..\..\..\..\source\SkiaSharp.Views.Maui\SkiaSharp.Views.Maui.Controls\SkiaSharp.Views.Maui.Controls.csproj" />
  </ItemGroup>

-  <ItemGroup Condition="$(TargetFramework.Contains('-windows'))">
-    <PackageReference Include="Microsoft.WindowsAppSDK" Version="1.0.0" />
-    <PackageReference Include="Microsoft.Graphics.Win2D" Version="1.0.0.30" />
-  </ItemGroup>
-
  <ItemGroup Condition="$(TargetFramework.Contains('-windows'))">
    <None Include="..\..\..\..\output\native\windows\x64\libSkiaSharp.dll" Condition="Exists('..\..\..\..\output\native\windows\x64\libSkiaSharp.dll')">
      <Link>libSkiaSharp.dll</Link>
@ -49,11 +44,6 @@
    </None>
  </ItemGroup>

-  <PropertyGroup Condition="$(TargetFramework.Contains('-windows'))">
-    <OutputType>WinExe</OutputType>
-    <RuntimeIdentifier>win10-x64</RuntimeIdentifier>
-  </PropertyGroup>
-
  <Import Project="..\..\..\..\output\SkiaSharp\nuget\build\$(TargetFramework)\SkiaSharp.Local.targets" Condition="Exists('..\..\..\..\output\SkiaSharp\nuget\build\$(TargetFramework)\SkiaSharp.Local.targets')" />

 </Project>
--- a/scripts/azure-pipelines-variables.yml
+++ b/scripts/azure-pipelines-variables.yml
@ -13,9 +13,9 @@ variables:
  MONO_VERSION_MACOS: '6_12_13'
  MONO_VERSION_LINUX: ''
  XCODE_VERSION: 13.2.1
-  VISUAL_STUDIO_VERSION: ''
-  DOTNET_VERSION_PREVIEW: '6.0.200-rtm.22107.3'
-  DOTNET_WORKLOAD_SOURCE: 'https://aka.ms/dotnet/maui/6.0.200/preview.14.json'
+  VISUAL_STUDIO_VERSION: '17/pre'
+  DOTNET_VERSION_PREVIEW: '6.0.300-preview.22179.2'
+  DOTNET_WORKLOAD_SOURCE: 'https://aka.ms/dotnet/maui/6.0.300/rc.1.json'
  CONFIGURATION: 'Release'
  DOTNET_SKIP_FIRST_TIME_EXPERIENCE: true
  THROW_ON_TEST_FAILURE: true
--- a/scripts/azure-pipelines.yml
+++ b/scripts/azure-pipelines.yml
@ -19,12 +19,33 @@ parameters:
      pool:
        name: Azure Pipelines
        vmImage: windows-2022
-  - name: VM_IMAGE_MAC
+  - name: VM_IMAGE_MAC_NATIVE
    type: object
    default:
      pool:
        name: Azure Pipelines
        vmImage: macos-11
+  - name: VM_IMAGE_MAC
+    type: object
+    default:
+      pool:
+        name: VSEng-VSMac-Xamarin-Shared
+        vmImage: VSEng-VSMac-Xamarin-Shared
+        demands:
+          - macOS.Name -equals Monterey
+          - macOS.Architecture -equals x64
+          - Agent.HasDevices -equals False
+          - Agent.IsPaired -equals False
+      variables:
+        XCODE_VERSION: 13.3.0
+      provisioningSteps:
+        - task: xamops.azdevex.provisionator-task.provisionator@1
+          displayName: 'Provision Xamarin'
+          inputs:
+            provisioning_script: ./scripts/provisionator.csx
+            provisioning_extra_args: --force
+          env:
+            AUTH_TOKEN_GITHUB_COM: $(github--pat--vs-mobiletools-engineering-service2)
  - name: VM_IMAGE_LINUX
    type: object
    default:
@ -51,6 +72,6 @@ stages:
      VM_IMAGE_WINDOWS: ${{ parameters.VM_IMAGE_WINDOWS }}
      VM_IMAGE_WINDOWS_NATIVE: ${{ parameters.VM_IMAGE_WINDOWS }}
      VM_IMAGE_MAC: ${{ parameters.VM_IMAGE_MAC }}
-      VM_IMAGE_MAC_NATIVE: ${{ parameters.VM_IMAGE_MAC }}
+      VM_IMAGE_MAC_NATIVE: ${{ parameters.VM_IMAGE_MAC_NATIVE }}
      VM_IMAGE_LINUX: ${{ parameters.VM_IMAGE_LINUX }}
      VM_IMAGE_LINUX_NATIVE: ${{ parameters.VM_IMAGE_LINUX }}
--- a/scripts/azure-templates-build.yml
+++ b/scripts/azure-templates-build.yml
@ -145,9 +145,10 @@ jobs:
            displayName: Display all the .NET information
          # install VS
          - ${{ if endsWith(parameters.name, '_windows') }}:
-            - ${{ if and(eq(parameters.installPreviewVs, 'true'), ne(variables.VISUAL_STUDIO_VERSION, '')) }}:
+            - ${{ if eq(parameters.installPreviewVs, 'true') }}:
              - pwsh: .\scripts\install-vs.ps1 -Version $(VISUAL_STUDIO_VERSION)
                displayName: Install Visual Studio
+                condition: ne(variables.VISUAL_STUDIO_VERSION, '')
          # install workloads
          - ${{ if not(endsWith(parameters.name, '_linux')) }}:
            - pwsh: .\scripts\install-dotnet-workloads.ps1 -InstallDir "$env:AGENT_TOOLSDIRECTORY/dotnet" -SourceUrl "$env:DOTNET_WORKLOAD_SOURCE" -IsPreview $true
--- a/scripts/azure-templates-variables.yml
+++ b/scripts/azure-templates-variables.yml
@ -51,13 +51,17 @@ steps:

  - pwsh: |
      Write-Host "Working with $env:RESOURCES_PIPELINE_SKIASHARP_RUNNAME"
-      $match = [regex]::Match("$env:RESOURCES_PIPELINE_SKIASHARP_RUNNAME", '.*\-(.+)\.(\d+)')
-      $label = $match.Groups[1].Value
-      Write-Host "Preview label: $label"
-      Write-Host "##vso[task.setvariable variable=PREVIEW_LABEL]$label"
-      $buildnumber = $match.Groups[2].Value
-      Write-Host "Build number: $buildnumber"
-      Write-Host "##vso[task.setvariable variable=BUILD_NUMBER]$buildnumber"
+      if ($env:RESOURCES_PIPELINE_SKIASHARP_RUNNAME) {
+        $match = [regex]::Match("$env:RESOURCES_PIPELINE_SKIASHARP_RUNNAME", '.*\-(.+)\.(\d+)')
+        $label = $match.Groups[1].Value
+        Write-Host "Preview label: $label"
+        Write-Host "##vso[task.setvariable variable=PREVIEW_LABEL]$label"
+        $buildnumber = $match.Groups[2].Value
+        Write-Host "Build number: $buildnumber"
+        Write-Host "##vso[task.setvariable variable=BUILD_NUMBER]$buildnumber"
+      } else {
+        Write-Host "Not a secondary build."
+      }
    condition: or(eq(variables['Build.Reason'], 'ResourceTrigger'), eq(variables['Build.Reason'], 'Manual'))
    displayName: Override the preview label and build number if this is a secondary build

--- a/scripts/install-vs.ps1
+++ b/scripts/install-vs.ps1
@ -11,25 +11,30 @@ if (Test-Path $fullPath) {
  exit 0
 }

+$temp = "$env:TEMP"
+if ("$env:AGENT_TEMPDIRECTORY") {
+  $temp = "$env:AGENT_TEMPDIRECTORY"
+}
+
 $startTime = Get-Date

 Write-Host "Downloading Visual Studio Installer..."
 Invoke-WebRequest -UseBasicParsing `
  -Uri "https://aka.ms/vs/install/latest/vs_setup.exe" `
-  -OutFile "$env:TEMP\dd_vs_setup.exe"
+  -OutFile "$temp\dd_vs_setup.exe"

 Write-Host "Updating the Visual Studio Installer..."
-$exitCode = & "$env:TEMP\dd_vs_setup.exe" --update --quiet --wait | Out-Null
+$exitCode = & "$temp\dd_vs_setup.exe" --update --quiet --wait | Out-Null

 Write-Host "Exit code: $exitCode"

 Write-Host "Downloading Visual Studio ($Version)..."
 Invoke-WebRequest -UseBasicParsing `
  -Uri "https://aka.ms/vs/$Version/vs_community.exe" `
-  -OutFile "$env:TEMP\dd_vs_community.exe"
+  -OutFile "$temp\dd_vs_community.exe"

 Write-Host "Installing Visual Studio..."
-$exitCode = & "$env:TEMP\dd_vs_community.exe" --quiet --norestart --wait `
+$exitCode = & "$temp\dd_vs_community.exe" --quiet --norestart --wait `
  --includeRecommended `
  --add Microsoft.VisualStudio.Workload.NetCrossPlat `
  --add Microsoft.VisualStudio.Workload.NetCoreTools `
@ -41,7 +46,7 @@ Write-Host "Exit code: $exitCode"

 $vsLogs = 'output\logs\vs-logs'
 New-Item -ItemType Directory -Force -Path "$vsLogs" | Out-Null
-Get-ChildItem "$env:TEMP\dd_*" |
+Get-ChildItem "$temp\dd_*" |
  Where-Object { $_.CreationTime -gt $startTime } |
  Copy-Item -Destination "$vsLogs"

--- a/scripts/provisionator.csx
+++ b/scripts/provisionator.csx
@ -0,0 +1 @@
+XamarinChannel("Stable");
--- a/source/SkiaSharp.Build.targets
+++ b/source/SkiaSharp.Build.targets
@ -23,7 +23,7 @@
    <SupportedOSPlatformVersion Condition="$(TargetFramework.Contains('-macos'))">10.14</SupportedOSPlatformVersion>
    <SupportedOSPlatformVersion Condition="$(TargetFramework.Contains('-maccatalyst'))">13.1</SupportedOSPlatformVersion>
    <SupportedOSPlatformVersion Condition="$(TargetFramework.Contains('-android'))">21.0</SupportedOSPlatformVersion>
-    <SupportedOSPlatformVersion Condition="$(TargetFramework.Contains('-windows'))">10.0.18362.0</SupportedOSPlatformVersion>
+    <SupportedOSPlatformVersion Condition="$(TargetFramework.Contains('-windows'))">10.0.17763.0</SupportedOSPlatformVersion>

    <!--
      Suppress version attribute generation in Microsoft.NET.Sdk projects to avoid build failures
--- a/source/SkiaSharp.Views.Forms/SkiaSharp.Views.Forms.Native.Shared/SKCanvasViewRendererBase.cs
+++ b/source/SkiaSharp.Views.Forms/SkiaSharp.Views.Forms.Native.Shared/SKCanvasViewRendererBase.cs
@ -13,16 +13,16 @@ using SKFormsView = SkiaSharp.Views.Maui.Controls.SKCanvasView;

 #if __ANDROID__
 using Android.Content;
-using Microsoft.Maui.Controls.Compatibility.Platform.Android;
+using Microsoft.Maui.Controls.Handlers.Compatibility;
 using SKNativeView = SkiaSharp.Views.Android.SKCanvasView;
 using SKNativePaintSurfaceEventArgs = SkiaSharp.Views.Android.SKPaintSurfaceEventArgs;
 #elif __IOS__
-using Microsoft.Maui.Controls.Compatibility.Platform.iOS;
+using Microsoft.Maui.Controls.Handlers.Compatibility;
 using SKNativeView = SkiaSharp.Views.iOS.SKCanvasView;
 using SKNativePaintSurfaceEventArgs = SkiaSharp.Views.iOS.SKPaintSurfaceEventArgs;
 #elif WINDOWS
 using Windows.Graphics.Display;
-using Microsoft.Maui.Controls.Compatibility.Platform.UWP;
+using Microsoft.Maui.Controls.Handlers.Compatibility;
 using SKNativeView = SkiaSharp.Views.Windows.SKXamlCanvas;
 using SKNativePaintSurfaceEventArgs = SkiaSharp.Views.Windows.SKPaintSurfaceEventArgs;
 using WVisibility = Microsoft.UI.Xaml.Visibility;
--- a/source/SkiaSharp.Views.Forms/SkiaSharp.Views.Forms.Native.Shared/SKGLViewRendererBase.cs
+++ b/source/SkiaSharp.Views.Forms/SkiaSharp.Views.Forms.Native.Shared/SKGLViewRendererBase.cs
@ -11,11 +11,11 @@ using SKFormsView = SkiaSharp.Views.Maui.Controls.SKGLView;

 #if __ANDROID__
 using Android.Content;
-using Microsoft.Maui.Controls.Compatibility.Platform.Android;
+using Microsoft.Maui.Controls.Handlers.Compatibility;
 using SKNativeView = SkiaSharp.Views.Android.SKGLTextureView;
 using SKNativePaintGLSurfaceEventArgs = SkiaSharp.Views.Android.SKPaintGLSurfaceEventArgs;
 #elif __IOS__
-using Microsoft.Maui.Controls.Compatibility.Platform.iOS;
+using Microsoft.Maui.Controls.Handlers.Compatibility;
 using SKNativeView = SkiaSharp.Views.iOS.SKGLView;
 using SKNativePaintGLSurfaceEventArgs = SkiaSharp.Views.iOS.SKPaintGLSurfaceEventArgs;
 #endif
--- a/source/SkiaSharp.Views.Forms/SkiaSharp.Views.Forms.Shared/SKImageSource.cs
+++ b/source/SkiaSharp.Views.Forms/SkiaSharp.Views.Forms.Shared/SKImageSource.cs
@ -153,6 +153,8 @@ namespace SkiaSharp.Views.Forms
 		{
 			if (propertyName == PictureProperty.PropertyName)
 				OnSourceChanged();
+			else if (propertyName == DimensionsProperty.PropertyName)
+				OnSourceChanged();
 			base.OnPropertyChanged(propertyName);
 		}
 	}
--- a/source/SkiaSharp.Views.Maui/SkiaSharp.Views.Maui.Controls.Compatibility/AppHostBuilderExtensions.cs
+++ b/source/SkiaSharp.Views.Maui/SkiaSharp.Views.Maui.Controls.Compatibility/AppHostBuilderExtensions.cs
@ -1,6 +1,4 @@
 using System;
-using Microsoft.Maui;
-using Microsoft.Maui.Controls.Compatibility;
 using Microsoft.Maui.Hosting;
 using SkiaSharp.Views.Maui.Controls.Compatibility;
 using SkiaSharp.Views.Maui.Controls.Hosting;
@ -27,12 +25,12 @@ namespace SkiaSharp.Views.Maui.Controls.Hosting
 				{
 #if !NETSTANDARD
 					if (replaceHandlers)
-						handlers.AddCompatibilityRenderer(typeof(SKCanvasView), typeof(SKCanvasViewRenderer));
+						handlers.AddHandler<SKCanvasView, SKCanvasViewRenderer>();
 					else
-						handlers.TryAddCompatibilityRenderer(typeof(SKCanvasView), typeof(SKCanvasViewRenderer));
+						handlers.TryAddHandler<SKCanvasView, SKCanvasViewRenderer>();

 #if !WINDOWS && !__MACCATALYST__
-					handlers.AddCompatibilityRenderer(typeof(SKGLView), typeof(SKGLViewRenderer));
+					handlers.AddHandler<SKGLView, SKGLViewRenderer>();
 #endif

 					CompatRegistrar.Registered.Register(typeof(SKImageImageSource), typeof(SKImageSourceHandler));
--- a/source/SkiaSharp.Views.Maui/SkiaSharp.Views.Maui.Core/Handlers/SKCanvasView/SKCanvasViewHandler.Android.cs
+++ b/source/SkiaSharp.Views.Maui/SkiaSharp.Views.Maui.Core/Handlers/SKCanvasView/SKCanvasViewHandler.Android.cs
@ -65,7 +65,7 @@ namespace SkiaSharp.Views.Maui.Handlers
 				VirtualView?.OnCanvasSizeChanged(newCanvasSize);
 			}

-			VirtualView?.OnPaintSurface(new SKPaintSurfaceEventArgs(e.Surface, e.Info));
+			VirtualView?.OnPaintSurface(new SKPaintSurfaceEventArgs(e.Surface, e.Info, e.RawInfo));
 		}

 		private SKPoint OnGetScaledCoord(double x, double y)
--- a/source/SkiaSharp.Views.Maui/SkiaSharp.Views.Maui.Core/Handlers/SKCanvasView/SKCanvasViewHandler.Windows.cs
+++ b/source/SkiaSharp.Views.Maui/SkiaSharp.Views.Maui.Core/Handlers/SKCanvasView/SKCanvasViewHandler.Windows.cs
@ -63,7 +63,7 @@ namespace SkiaSharp.Views.Maui.Handlers
 				VirtualView?.OnCanvasSizeChanged(newCanvasSize);
 			}

-			VirtualView?.OnPaintSurface(new SKPaintSurfaceEventArgs(e.Surface, e.Info));
+			VirtualView?.OnPaintSurface(new SKPaintSurfaceEventArgs(e.Surface, e.Info, e.RawInfo));
 		}

 		private SKPoint OnGetScaledCoord(double x, double y)
--- a/source/SkiaSharp.Views.Maui/SkiaSharp.Views.Maui.Core/Handlers/SKCanvasView/SKCanvasViewHandler.iOS.cs
+++ b/source/SkiaSharp.Views.Maui/SkiaSharp.Views.Maui.Core/Handlers/SKCanvasView/SKCanvasViewHandler.iOS.cs
@ -64,7 +64,7 @@ namespace SkiaSharp.Views.Maui.Handlers
 				VirtualView?.OnCanvasSizeChanged(newCanvasSize);
 			}

-			VirtualView?.OnPaintSurface(new SKPaintSurfaceEventArgs(e.Surface, e.Info));
+			VirtualView?.OnPaintSurface(new SKPaintSurfaceEventArgs(e.Surface, e.Info, e.RawInfo));
 		}

 		private SKPoint OnGetScaledCoord(double x, double y)
--- a/source/SkiaSharp.Views.Maui/SkiaSharp.Views.Maui.Core/Handlers/SKImageSourceService/SKImageSourceService.Android.cs
+++ b/source/SkiaSharp.Views.Maui/SkiaSharp.Views.Maui.Core/Handlers/SKImageSourceService/SKImageSourceService.Android.cs
@ -9,7 +9,29 @@ namespace SkiaSharp.Views.Maui.Handlers
 {
 	public partial class SKImageSourceService
 	{
-		public override Task<IImageSourceServiceResult<Drawable>?> GetDrawableAsync(IImageSource imageSource, Context context, CancellationToken cancellationToken = default)
+		public override async Task<IImageSourceServiceResult?> LoadDrawableAsync(
+			IImageSource imageSource,
+			global::Android.Widget.ImageView imageView,
+			CancellationToken cancellationToken = default)
+		{
+			var realResult = await GetDrawableAsync(imageView.Context!, imageSource, cancellationToken);
+
+			if (realResult is null)
+			{
+				imageView.SetImageDrawable(null);
+				return null;
+			}
+
+			imageView.SetImageDrawable(realResult.Value);
+
+			var result = new ImageSourceServiceLoadResult(
+				realResult.IsResolutionDependent,
+				() => realResult.Dispose());
+
+			return result;
+		}
+
+		public override Task<IImageSourceServiceResult<Drawable>?> GetDrawableAsync(Context context, IImageSource imageSource, CancellationToken cancellationToken = default)
 		{
 			var bitmap = imageSource switch
 			{
--- a/source/SkiaSharp.Views.WinUI/SkiaSharp.Views.WinUI/SkiaSharp.Views.WinUI.csproj
+++ b/source/SkiaSharp.Views.WinUI/SkiaSharp.Views.WinUI/SkiaSharp.Views.WinUI.csproj
@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
-    <TargetFramework>net5.0-windows10.0.18362</TargetFramework>
+    <TargetFrameworks>net5.0-windows10.0.18362;net6.0-windows10.0.18362</TargetFrameworks>
    <TargetPlatformMinVersion>10.0.17763.0</TargetPlatformMinVersion>
    <RootNamespace>SkiaSharp.Views.Windows</RootNamespace>
    <AssemblyName>SkiaSharp.Views.Windows</AssemblyName>
--- a/source/SkiaSharp.Views/SkiaSharp.Views.UWP/UWPExtensions.cs
+++ b/source/SkiaSharp.Views/SkiaSharp.Views.UWP/UWPExtensions.cs
@ -75,7 +75,7 @@ namespace SkiaSharp.Views.UWP
 		{
 			using (var image = SKImage.FromPicture(picture, dimensions))
 			{
-				return image.ToWriteableBitmap();
+				return image?.ToWriteableBitmap();
 			}
 		}