Short answer: there’s no single “move” button — what you transfer is files. How easy it is depends on language and project type. Below is a compact, practical guide covering the common transfers (VS Code ↔ MAUI, Xcode ↔ MAUI, VS Code ↔ Xcode), with concrete steps and recommended approaches.
Quick framing (important)
- VS Code is an editor — it can open and edit many project types (C#, Swift, Flutter, JS), but it doesn’t replace platform toolchains. MAUI is a .NET project/framework (C#) and uses the .NET toolchain; Xcode is Apple’s toolchain (Swift/Obj‑C, simulator, signing). MAUI iOS builds still call into Xcode’s SDKs.
Option A — VS Code ↔ MAUI (same language: C#/.NET)
When this is the case you’re simply opening the same project in a different editor.
Steps:
- Install .NET SDK and MAUI workload on your Mac:
dotnet --info then dotnet workload install maui.
- Open the MAUI solution/project folder in VS Code (or Visual Studio for Mac for more integration). Install the C# extension (OmniSharp).
- Build/run with dotnet CLI:
dotnet build to compile.
dotnet run or use the IDE tasks to deploy to an emulator/device (for MAUI you often use dotnet build -t:Run -f <TFM‑and‑runtime> or the IDE controls).
- If you want Visual Studio features later, open the same solution in Visual Studio for Mac/Windows — the project files are the same.
Notes: Keep non‑UI business logic in class libraries (Shared project or classlib) so it’s always reusable and editor‑agnostic.
Option B — Xcode (Swift/Obj‑C) ↔ MAUI (C#) — different languages / different UI frameworks
You cannot “open” a Swift app in MAUI or vice‑versa and expect the UI to work automatically. Approaches:
- Re‑implement UI in target framework (most common):
- Port business logic + algorithms manually into C# (MAUI) or Swift. This is the most predictable approach.
- Share logic via a native C/C++ library:
- Extract platform‑agnostic logic into a C API library compiled for each platform (iOS: arm64 + simulator; macOS).
- Call it from Swift (bridging header) and from C# using P/Invoke (DllImport) or a Xamarin.iOS/MAUI native binding. This is more advanced but lets both apps call the same native binary.
- Use a shared backend/API:
- Move shared functionality to a web service (REST, gRPC) and have each app call it. Easiest for data/business logic sharing across completely different stacks.
Why this is necessary: MAUI and Xcode apps have different UI systems and runtimes; only native binary interfaces (C ABI) or external services can be shared directly across them.
Option C — VS Code ↔ Xcode (Swift projects, Flutter, React Native)
- If project is a Swift Package (SPM), Xcode can open Package.swift; VS Code can edit the same sources (with SourceKit-LSP support). You can edit in VS Code and build/run in Xcode.
- Flutter / React Native: VS Code edits the code; to build iOS you open the platform workspace in Xcode:
- Flutter: open ios/Runner.xcworkspace in Xcode for signing/profiling.
- React Native: open ios/YourApp.xcworkspace in Xcode for simulator/device runs and signing.
So VS Code → Xcode is often “edit here, build & sign there.” This pattern is standard when using cross‑platform frameworks that produce native iOS projects.
Option D — Move code by sharing libraries/packages (recommended for development hygiene)
- For C#/.NET: create a shared class library and reference it (ProjectReference or NuGet). Example workflow:
dotnet new classlib -n SharedLogic
- Add to solution and reference from each app:
dotnet add <App>.csproj reference ../SharedLogic/SharedLogic.csproj
- For Swift: use Swift Package Manager (Package.swift) to distribute shared code.
- For mixed stacks: publish shared code as a web service or compile a native C library as above.
Runtime inter‑app communication (not “copy code”)
- If your goal is “get one installed app to use functionality of another installed app without copying files,” use platform IPC/extension APIs:
- Windows: App Services, protocol activation and Launcher APIs (ValueSet) for message/data passing.
- iOS/macOS: URL schemes, App Extensions, App Groups, system share/clipboard, or custom extensions.
That’s different from transferring source code — it’s about messaging and shared runtime services.
Practical small checklist — pick your situation
- I want to edit a MAUI project in VS Code and run it on iOS: install .NET + MAUI, install C# extension in VS Code, have Xcode installed for iOS toolchain, use
dotnet build/run or Visual Studio for Mac for easier deployment.
- I have an Xcode (Swift) app and want the same algorithm in a MAUI app: either port the algorithm to C#, or extract it to a C API library and call from both sides (advanced), or put it on a server and call it from both apps.
- I use Flutter or React Native in VS Code and need to publish to iOS: open the generated iOS workspace in Xcode for signing and App Store upload.
Warnings & tips
- There’s no reliable automated translator from Swift UI code to MAUI XAML/C#. Manual porting is almost always required for UI.
- If you need App Store submission or profiling on iOS you must use Xcode for signing/Profiling and the simulator. MAUI’s toolchain will invoke Xcode under the hood but final signing/profile steps are Xcode territory.
- For sharing logic between apps on the same machine/device prefer platform extension or app service mechanisms rather than copying code at runtime.
If you tell me exactly:
- which two projects you want to transfer between (example: “MAUI project in VS Code → Xcode/Swift app”), and
- what language each project uses and what parts you want to transfer (UI? models? business logic?,
I’ll give a concrete, step‑by‑step plan for that pair (including exact commands, minimal example files, and the easiest path — e.g., "create a SharedLogic classlib and reference it" or "create a tiny C wrapper and show the DllImport and Swift bridging header"). Which two do you want to move code between right now?