com.swiftdotnet.unity

SwiftDotNet for Unity

Renders a SwiftDotNet UI tree inside a Unity scene.

The engine is unchanged — layout, hit-testing, gestures and the paint pass are the same SwiftDotNet.Graphics code every other self-drawing backend uses. This package supplies only the Unity host: a Texture2D to draw into, a pointer pump, and a repaint signal.

⚠️ Unverified. This package has never been compiled or run — it was written without a Unity Editor available. The .NET assemblies it depends on are built and tested; the MonoBehaviour is a careful first draft. Expect to fix compile errors on first open.

Install

1. Build the .NET assemblies for Unity's scripting runtime:

   dotnet build src/SwiftDotNet/SwiftDotNet.csproj                   -f netstandard2.1
   dotnet build src/SwiftDotNet.Graphics/SwiftDotNet.Graphics.csproj -f netstandard2.1

2. Copy SwiftDotNet.dll, SwiftDotNet.Graphics.dll, SwiftDotNet.Skia.dll and SkiaSharp.dll into Assets/Plugins/.
3. Add the native libSkiaSharp binary for each target platform under Assets/Plugins/<platform>/.
4. Copy this folder into your project's Packages/.

Use

using SwiftDotNet;
using SwiftDotNet.Unity;

public sealed class MyAppView : SwiftDotNetView
{
    protected override View BuildRoot() => new ContentView();
}

Attach to a GameObject. Assign a UGUI RawImage to Target to render into a canvas, or leave it empty to draw full-screen.

Known gaps

• Safe area is not wired (SafeArea.Update is internal to Core).
• Soft keyboard is not wired — the engine reports focus via SkiaBridge.FocusChanged, and a host would open TouchScreenKeyboard from it.
• Input uses the legacy Input API; the new Input System would be a drop-in replacement in PumpInput.
• IL2CPP/AOT is untested. Core is reflection-free and IsTrimmable, so it should be fine.

Full detail: docs/backends/unity.md.