What’s the best way to implement a camera in SwiftUI

To implement a camera in SwiftUI, you can utilize several approaches and APIs discussed in the WWDC sessions:

1. Camera Region in SwiftUI: You can use the VisionKit API to add a camera region to your SwiftUI app. This involves creating a SwiftUI view, such as an Inspector View, which contains a Camera Region View. This view can be initialized with parameters like contrast and vibrancy enhancement. You can also use a closure to process each camera frame, which allows for more complex applications, such as analyzing camera images or saving them to a file. This approach is demonstrated in the session Explore enhancements to your spatial business app.

2. Capture Controls in SwiftUI: The session Enhancing your camera experience with capture controls explains how to build a simple camera app using the On Camera Capture Event View modifier in SwiftUI. This allows you to capture photos with physical buttons and includes setting up a user interface with a camera view and a capture button.

3. Cinematic Video Capture: For more advanced video capture, you can use the AVCapture session to build an interface for video capture using SwiftUI. This involves configuring an AVCapture session and wrapping the preview layer into a struct that conforms to the UIViewRepresentable protocol. This approach is detailed in the session Capture cinematic video in your app.

These sessions provide a comprehensive guide to implementing camera functionality in SwiftUI, from basic photo capture to advanced video features.