iOS Project Setup

iOS Project Setup

Create a new SwiftUI app in Xcode, configure signing and capabilities, and set your deployment targets.

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Create a New Project in Xcode

Use the App template, choose Swift and SwiftUI, set your organization identifier (e.g.

com.example), and pick a bundle identifier like com.example.MyApp.

Checklist

• Product Name, Team, Organization Identifier
• Interface: SwiftUI; Language: Swift; Use Core Data (optional)
• Minimum iOS version (e.g. iOS 15+)

Use this checklist to ensure your project is created with the right templates, identifiers, and minimum OS version.

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Run Examples in Xcode

Standard workflow (used in this tutorial)

Each example is organized into three files so you can run it as a small app:

1. Demo.swift: The example’s main code (view and/or supporting types).
2. ContentView.swift: Shows the demo (uses types from Demo.swift).
3. App.swift: Stable entry point with WindowGroup { ContentView() }.

Tip: In your own Xcode project, avoid duplicate ContentView declarations.

Reuse a single ContentView and update its body per example, or create a simple chooser that navigates to uniquely named demo views.

Optional: Canvas Preview

You can also run any example via Xcode’s Canvas Preview without changing your app entry point.

1. Create a SwiftUI View: File → New → File… → SwiftUI View. Paste the example view code.
2. Add a Preview: Use a PreviewProvider or the #Preview macro.

Example

PreviewProvider.swift

#Preview.swift

import SwiftUI

struct Demo_Previews: PreviewProvider {
  static var previews: some View { Demo() }
}

3. Open Canvas: Editor → Canvas. Build once if the preview is unavailable.
4. Run & Interact: Click Resume/Play; use the device selector to switch models.

Troubleshooting: If the preview fails to load, Build, then Clean Build Folder.

Ensure the target is iOS and the file imports SwiftUI.

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Project Settings

In the project navigator, select the app target and configure:

• Signing & Capabilities: Select your team and enable automatic signing.
• Deployment Info: Minimum iOS version, supported orientations.
• Bundle Identifier: Matches the one you will register in App Store Connect.