SwiftUI- Creating MacOS App

Creating a macOS app using SwiftUI follows a similar approach to iOS, but there are some key differences due to the platform's unique features, such as window management, menus, and the different types of controls. Follow the following steps to create and app.

Set Up Your macOS App Project

Follow the steps given below −

• Step 1: Open Xcode and choose File > New > Project.

• Step 2: Select macOS as the platform.

• Step 3: Choose App as the template, and make sure Swift is the language and SwiftUI is selected for the user interface.

• Step 4: Click Next and set your projects name and other details.

• Step 5: Choose a location to save your project and click Create.

Understanding the Default Project Structure

Step 6: When you create a macOS app using SwiftUI, Xcode generates a few key files for you:

• ContentView.swift: This file contains the main view of your app. Its similar to the View.swift in iOS apps.

• YourApp.swift: This file contains the entry point of the application. It's where the app's life cycle is managed.

• AppDelegate.swift (optional): If your app has custom behavior (like integrating with a shared app delegate), youll see this file.

Modify ContentView.swift

import SwiftUI
struct ContentView: View {
   var body: some View {
      Text("Hello, macOS!")
         .font(.largeTitle)
         .padding()
   }
}
struct ContentView_Previews: PreviewProvider {
   static var previews: some View {
      ContentView()
   }
}

Add App Life-cycle and Window Management

In a macOS app, window management is slightly different than iOS because you can have multiple windows. In the YourApp.swift file, you can define the app's life cycle and how windows should be managed.

import SwiftUI
@main
struct MyMacApp: App {
   var body: some Scene {
      WindowGroup {
         ContentView()
      }
   }
}

Running the App

Once you have set up the app with your desired SwiftUI views, you can run your app by pressing the Play button in Xcode, or by using the shortcut Cmd + R. The app will run on your Mac, and you can interact with it like any macOS app.