How do I implement the new Controls API ?

To implement the new Controls API introduced at WWDC 2024, you can follow these steps:

1. Understand What Controls Are: Controls are a new type of widget in iOS 18 that allow you to extend your app's functionality into system spaces like the control center, lock screen, and action button. They focus on actions and succinct information, making them ideal for quick tasks like turning on the flashlight or deep linking into an app.

2. Types of Controls: There are two types of controls:

   • Buttons: Perform discrete actions, which can include launching your app.
   • Toggles: Change a piece of boolean state, like turning something on or off.

3. Creating a Control: Controls are built using WidgetKit and are similar to building a widget. Here’s a basic outline:

   • Define the control type (button or toggle).
   • Use an app intent to perform the action.
   • Provide a symbol, title, tint color, and additional content to the system.

4. Configuring a Control:

   • Use the control widget button for buttons.
   • Use the control widget status modifier to convey additional information about the control’s action or state.
   • Customize the display name and description of your control for better user understanding.

5. Example: Here’s a simple example to create a button control:

   struct MyControl: Widget {
       var body: some WidgetConfiguration {
           IntentConfiguration(kind: "MyControl", intent: MyControlIntent.self, provider: MyControlProvider()) { entry in
               MyControlView(entry: entry)
           }
           .configurationDisplayName("My Control")
           .description("This is an example control.")
           .supportedFamilies([.systemSmall])
       }
   }
   

6. Adding to System Spaces: Once defined, your control will be available in the new controls gallery, where users can add it to their control center, lock screen, or action button.

For a detailed walkthrough, you can refer to the session Extend your app’s controls across the system.

Relevant Sessions

• Extend your app’s controls across the system
• Platforms State of the Union
• What’s new in SwiftUI
• Bring your app’s core features to users with App Intents

These sessions provide comprehensive information on how to implement and refine controls in your app.