Add MAUI csharp\sample\InferenceSample\ project

csharp/sample/InferenceSample/Microsoft.ML.OnnxRuntime.InferenceSample.Maui/App.xaml

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+<?xml version = "1.0" encoding = "UTF-8" ?>
+<Application xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+             xmlns:local="clr-namespace:Microsoft.ML.OnnxRuntime.InferenceSample.Maui"
+             x:Class="Microsoft.ML.OnnxRuntime.InferenceSample.Maui.App">
+    <Application.Resources>
+        <ResourceDictionary>
+            <ResourceDictionary.MergedDictionaries>
+                <ResourceDictionary Source="Resources/Styles/Colors.xaml" />
+                <ResourceDictionary Source="Resources/Styles/Styles.xaml" />
+            </ResourceDictionary.MergedDictionaries>
+        </ResourceDictionary>
+    </Application.Resources>
+</Application>

csharp/sample/InferenceSample/Microsoft.ML.OnnxRuntime.InferenceSample.Maui/App.xaml.cs

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+namespace Microsoft.ML.OnnxRuntime.InferenceSample.Maui;
+
+public partial class App : Application
+{
+	public App()
+	{
+		InitializeComponent();
+
+		MainPage = new AppShell();
+	}
+}

csharp/sample/InferenceSample/Microsoft.ML.OnnxRuntime.InferenceSample.Maui/AppShell.xaml

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+<?xml version="1.0" encoding="UTF-8" ?>
+<Shell
+    x:Class="Microsoft.ML.OnnxRuntime.InferenceSample.Maui.AppShell"
+    xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
+    xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+    xmlns:local="clr-namespace:Microsoft.ML.OnnxRuntime.InferenceSample.Maui"
+    Shell.FlyoutBehavior="Disabled">
+
+    <ShellContent
+        Title="Home"
+        ContentTemplate="{DataTemplate local:MainPage}"
+        Route="MainPage" />
+
+</Shell>

csharp/sample/InferenceSample/Microsoft.ML.OnnxRuntime.InferenceSample.Maui/AppShell.xaml.cs

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+namespace Microsoft.ML.OnnxRuntime.InferenceSample.Maui;
+
+public partial class AppShell : Shell
+{
+	public AppShell()
+	{
+		InitializeComponent();
+	}
+}

csharp/sample/InferenceSample/Microsoft.ML.OnnxRuntime.InferenceSample.Maui/MainPage.xaml

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+<?xml version="1.0" encoding="utf-8" ?>
+<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+             x:Class="Microsoft.ML.OnnxRuntime.InferenceSample.Maui.MainPage">
+
+    <StackLayout>
+        <Frame BackgroundColor="#2196F3" Padding="24" CornerRadius="0">
+            <Label Text="Inference Sample" HorizontalTextAlignment="Center" TextColor="White" FontSize="36"/>
+        </Frame>
+        <Label Text="ONNX Runtime" FontSize="Title" Padding="30,10,30,10"/>
+        <Button x:Name="Start" Text="Run tests" Clicked="Start_Clicked" FontSize="Large" />
+        <Label x:Name="OutputLabel" Text="Output" FontSize="Small"/>
+    </StackLayout>
+
+</ContentPage>

csharp/sample/InferenceSample/Microsoft.ML.OnnxRuntime.InferenceSample.Maui/MainPage.xaml.cs

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+namespace Microsoft.ML.OnnxRuntime.InferenceSample.Maui;
+//using Microsoft.Maui.Controls;
+
+public partial class MainPage : ContentPage
+{
+	public MainPage()
+	{
+		InitializeComponent();
+
+        // Best Practice: create the inference session (which loads and optimizes the model) once and not per inference
+        // as it can be expensive and time consuming.
+        inferenceSampleApi = new InferenceSampleApi();
+    }
+
+    protected override void OnAppearing()
+    {
+        base.OnAppearing();
+
+        OutputLabel.Text = "Press 'Run Tests'.\n";
+    }
+
+    private readonly InferenceSampleApi inferenceSampleApi;
+
+    private async Task ExecuteTests()
+    {
+        Action<Label, string> addOutput = (label, text) =>
+        {
+            Application.Current.Dispatcher.Dispatch(() => { label.Text += text; });
+            //Device.BeginInvokeOnMainThread(() => { label.Text += text; });
+            Console.Write(text);
+        };
+
+        OutputLabel.Text = "Testing execution\nComplete output is written to Console in this trivial example.\n\n";
+
+        // run the testing in a background thread so updates to the UI aren't blocked
+        await Task.Run(() =>
+        {
+            addOutput(OutputLabel, "Testing using default platform-specific session options... ");
+            inferenceSampleApi.Execute();
+            addOutput(OutputLabel, "done.\n");
+            Thread.Sleep(1000); // artificial delay so the UI updates gradually
+
+            // demonstrate a range of usages by recreating the inference session with different session options.
+            addOutput(OutputLabel, "Testing using default platform-specific session options... ");
+            inferenceSampleApi.CreateInferenceSession(SessionOptionsContainer.Create());
+            inferenceSampleApi.Execute();
+            addOutput(OutputLabel, "done.\n");
+            Thread.Sleep(1000);
+
+            addOutput(OutputLabel, "Testing using named platform-specific session options... ");
+            inferenceSampleApi.CreateInferenceSession(SessionOptionsContainer.Create("ort_with_npu"));
+            inferenceSampleApi.Execute();
+            addOutput(OutputLabel, "done.\n");
+            Thread.Sleep(1000);
+
+            addOutput(OutputLabel, "Testing using default platform-specific session options via ApplyConfiguration extension... ");
+            inferenceSampleApi.CreateInferenceSession(new SessionOptions().ApplyConfiguration());
+            inferenceSampleApi.Execute();
+            addOutput(OutputLabel, "done.\n");
+            Thread.Sleep(1000);
+
+            addOutput(OutputLabel, "Testing using named platform-specific session options via ApplyConfiguration extension... ");
+            inferenceSampleApi.CreateInferenceSession(new SessionOptions().ApplyConfiguration("ort_with_npu"));
+            inferenceSampleApi.Execute();
+            addOutput(OutputLabel, "done.\n\n");
+            Thread.Sleep(1000);
+        });
+
+        addOutput(OutputLabel, "Testing successfully completed! See the Console log for more info.");
+    }
+
+    private async void Start_Clicked(object sender, EventArgs e)
+    {
+        await ExecuteTests()
+            .ContinueWith(
+            (task) =>
+            {
+                if (task.IsFaulted)
+                    MainThread.BeginInvokeOnMainThread(() => DisplayAlert("Error", task.Exception.Message, "OK"));
+            })
+            .ConfigureAwait(false);
+    }
+}
+

csharp/sample/InferenceSample/Microsoft.ML.OnnxRuntime.InferenceSample.Maui/MauiProgram.cs

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+namespace Microsoft.ML.OnnxRuntime.InferenceSample.Maui;
+
+public static class MauiProgram
+{
+	public static MauiApp CreateMauiApp()
+	{
+		var builder = MauiApp.CreateBuilder();
+		builder
+			.UseMauiApp<App>()
+			.ConfigureFonts(fonts =>
+			{
+				fonts.AddFont("OpenSans-Regular.ttf", "OpenSansRegular");
+				fonts.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold");
+			});
+
+		return builder.Build();
+	}
+}

csharp/sample/InferenceSample/Microsoft.ML.OnnxRuntime.InferenceSample.Maui/Microsoft.ML.OnnxRuntime.InferenceSample.Maui.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+	<PropertyGroup>
+		<!-- note net6.0-maccatalyst is not supported currently. requires a new native build to be added. -->
+		<TargetFrameworks>net6.0-android;net6.0-ios</TargetFrameworks>
+		<TargetFrameworks Condition="$([MSBuild]::IsOSPlatform('windows'))">$(TargetFrameworks);net6.0-windows10.0.19041.0</TargetFrameworks>
+		<OutputType>Exe</OutputType>
+		<RootNamespace>Microsoft.ML.OnnxRuntime.InferenceSample.Maui</RootNamespace>
+		<UseMaui>true</UseMaui>
+		<SingleProject>true</SingleProject>
+		<ImplicitUsings>enable</ImplicitUsings>
+
+		<!-- Display name -->
+		<ApplicationTitle>InferenceSample_Maui</ApplicationTitle>
+
+		<!-- App Identifier -->
+		<ApplicationId>com.microsoft.ml.onnxruntime.inferencesample.maui</ApplicationId>
+		<ApplicationIdGuid>58af3884-1c25-42b7-b78b-30a65fb3cf69</ApplicationIdGuid>
+
+		<!-- Versions -->
+		<ApplicationDisplayVersion>1.0</ApplicationDisplayVersion>
+		<ApplicationVersion>1</ApplicationVersion>
+
+		<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'ios'">14.2</SupportedOSPlatformVersion>
+		<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'maccatalyst'">14.0</SupportedOSPlatformVersion>
+		<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'android'">21.0</SupportedOSPlatformVersion>
+		<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'windows'">10.0.17763.0</SupportedOSPlatformVersion>
+		<TargetPlatformMinVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'windows'">10.0.17763.0</TargetPlatformMinVersion>
+		<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'tizen'">6.5</SupportedOSPlatformVersion>
+		<DefaultLanguage>en</DefaultLanguage>
+	</PropertyGroup>
+
+	<!-- set ORT SelectedTargets to include .net6 target frameworks -->
+	<PropertyGroup>
+		<SelectedTargets>All</SelectedTargets>
+	</PropertyGroup>
+
+	<ItemGroup>
+		<!-- NOTE: 
+		You need to manually put builds from other platforms such as Android in the correct place for this to work for cross-platform
+		builds such as running in the Android simulator.
+		The 'correct' place is defined by the OnnxRuntimeBuildDirectory property in Microsoft.ML.OnnxRuntime.csproj
+		-->
+		<ProjectReference Include="..\..\..\src\Microsoft.ML.OnnxRuntime\Microsoft.ML.OnnxRuntime.csproj" />
+		<ProjectReference Include="..\Microsoft.ML.OnnxRuntime.InferenceSample\Microsoft.ML.OnnxRuntime.InferenceSample.csproj" />
+	</ItemGroup>
+
+	<ItemGroup>
+		<EmbeddedResource Include="..\..\..\testdata\bench.in">
+		<Link>TestData\bench.in</Link>
+		</EmbeddedResource>
+		<EmbeddedResource Include="..\..\..\testdata\squeezenet.onnx">
+		<Link>TestData\squeezenet.onnx</Link>
+		</EmbeddedResource>
+	</ItemGroup>
+
+	<ItemGroup>
+		<!-- App Icon -->
+		<MauiIcon Include="Resources\AppIcon\appicon.svg" ForegroundFile="Resources\AppIcon\appiconfg.svg" Color="#512BD4" />
+
+		<!-- Splash Screen -->
+		<MauiSplashScreen Include="Resources\Splash\splash.svg" Color="#512BD4" BaseSize="128,128" />
+
+		<!-- Images -->
+		<MauiImage Include="Resources\Images\*" />
+		<MauiImage Update="Resources\Images\dotnet_bot.svg" BaseSize="168,208" />
+
+		<!-- Custom Fonts -->
+		<MauiFont Include="Resources\Fonts\*" />
+
+		<!-- Raw Assets (also remove the "Resources\Raw" prefix) -->
+		<MauiAsset Include="Resources\Raw\**" LogicalName="%(RecursiveDir)%(Filename)%(Extension)" />
+	</ItemGroup>
+
+</Project>

csharp/sample/InferenceSample/Microsoft.ML.OnnxRuntime.InferenceSample.Maui/Microsoft.ML.OnnxRuntime.InferenceSample.Maui.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31611.283
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Microsoft.ML.OnnxRuntime.InferenceSample.Maui", "Microsoft.ML.OnnxRuntime.InferenceSample.Maui.csproj", "{00338B12-B291-43A6-9F54-0174660FB70E}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{00338B12-B291-43A6-9F54-0174660FB70E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{00338B12-B291-43A6-9F54-0174660FB70E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{00338B12-B291-43A6-9F54-0174660FB70E}.Debug|Any CPU.Deploy.0 = Debug|Any CPU
+		{00338B12-B291-43A6-9F54-0174660FB70E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{00338B12-B291-43A6-9F54-0174660FB70E}.Release|Any CPU.Build.0 = Release|Any CPU
+		{00338B12-B291-43A6-9F54-0174660FB70E}.Release|Any CPU.Deploy.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {61F7FB11-1E47-470C-91E2-47F8143E1572}
+	EndGlobalSection
+EndGlobal

csharp/sample/InferenceSample/Microsoft.ML.OnnxRuntime.InferenceSample.Maui/Platforms/Android/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+	<application android:allowBackup="true" android:icon="@mipmap/appicon" android:roundIcon="@mipmap/appicon_round" android:supportsRtl="true"></application>
+	<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+	<uses-permission android:name="android.permission.INTERNET" />
+</manifest>

csharp/sample/InferenceSample/Microsoft.ML.OnnxRuntime.InferenceSample.Maui/Platforms/Android/MainActivity.cs

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+using Android.App;
+using Android.Content.PM;
+using Android.OS;
+
+namespace Microsoft.ML.OnnxRuntime.InferenceSample.Maui;
+
+[Activity(Theme = "@style/Maui.SplashTheme", MainLauncher = true, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation | ConfigChanges.UiMode | ConfigChanges.ScreenLayout | ConfigChanges.SmallestScreenSize | ConfigChanges.Density)]
+public class MainActivity : MauiAppCompatActivity
+{
+}

csharp/sample/InferenceSample/Microsoft.ML.OnnxRuntime.InferenceSample.Maui/Platforms/Android/MainApplication.cs

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+using Android.App;
+using Android.Runtime;
+
+namespace Microsoft.ML.OnnxRuntime.InferenceSample.Maui;
+
+[Application]
+public class MainApplication : MauiApplication
+{
+	public MainApplication(IntPtr handle, JniHandleOwnership ownership)
+		: base(handle, ownership)
+	{
+	}
+
+	protected override MauiApp CreateMauiApp() => MauiProgram.CreateMauiApp();
+}

csharp/sample/InferenceSample/Microsoft.ML.OnnxRuntime.InferenceSample.Maui/Platforms/Android/Resources/values/colors.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#512BD4</color>
+    <color name="colorPrimaryDark">#2B0B98</color>
+    <color name="colorAccent">#2B0B98</color>
+</resources>

csharp/sample/InferenceSample/Microsoft.ML.OnnxRuntime.InferenceSample.Maui/Platforms/MacCatalyst/AppDelegate.cs

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+using Foundation;
+
+namespace Microsoft.ML.OnnxRuntime.InferenceSample.Maui;
+
+[Register("AppDelegate")]
+public class AppDelegate : MauiUIApplicationDelegate
+{
+	protected override MauiApp CreateMauiApp() => MauiProgram.CreateMauiApp();
+}

csharp/sample/InferenceSample/Microsoft.ML.OnnxRuntime.InferenceSample.Maui/Platforms/MacCatalyst/Info.plist

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>UIDeviceFamily</key>
+	<array>
+		<integer>1</integer>
+		<integer>2</integer>
+	</array>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>arm64</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>XSAppIconAssets</key>
+	<string>Assets.xcassets/appicon.appiconset</string>
+</dict>
+</plist>

csharp/sample/InferenceSample/Microsoft.ML.OnnxRuntime.InferenceSample.Maui/Platforms/MacCatalyst/Program.cs

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+using ObjCRuntime;
+using UIKit;
+
+namespace Microsoft.ML.OnnxRuntime.InferenceSample.Maui;
+
+public class Program
+{
+	// This is the main entry point of the application.
+	static void Main(string[] args)
+	{
+		// if you want to use a different Application Delegate class from "AppDelegate"
+		// you can specify it here.
+		UIApplication.Main(args, null, typeof(AppDelegate));
+	}
+}

csharp/sample/InferenceSample/Microsoft.ML.OnnxRuntime.InferenceSample.Maui/Platforms/Windows/App.xaml

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+<maui:MauiWinUIApplication
+    x:Class="Microsoft.ML.OnnxRuntime.InferenceSample.Maui.WinUI.App"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:maui="using:Microsoft.Maui"
+    xmlns:local="using:Microsoft.ML.OnnxRuntime.InferenceSample.Maui.WinUI">
+
+</maui:MauiWinUIApplication>