How do I do camera capture?
Generated on 8/2/2024
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To create a camera capture experience, especially one that can be accessed from the lock screen, you can follow the guidelines and use the tools introduced in the session Build a great Lock Screen camera capture experience at WWDC 2024. Here are the key steps and considerations:
-
Create a Locked Camera Capture Extension:
- This new extension type allows your app to provide a camera capture experience directly from the lock screen.
- The extension should provide a camera viewfinder immediately upon launch. If it doesn't, the system will terminate the extension.
-
Handle Hardware Button Events:
- Use
AVCaptureEvent
interaction to handle events from the system hardware buttons, such as using the volume up button to capture a photo or holding it to start recording a video.
- Use
-
Security and Privacy:
- The extension cannot use network resources, read from or write to any shared group container, or access shared preferences.
- Use
PhotoKit
to save photo and video assets captured from your extension to the user's photo library, even when the device is locked.
-
Permissions:
- Your extension will inherit permissions for camera and photos access from your application.
- Ensure that your extension and application include privacy usage descriptions for the camera.
-
UI Consistency:
- The UI for the extension should be focused on bringing users to a camera viewfinder to capture photos and videos, maintaining consistency with the main application.
For a more detailed walkthrough, you can refer to the session chapters:
- Introduction
- Great capture experiences
- Lifecycle of a capture extension
- Running on a locked device
- Capturing from the Lock Screen
- Working with captures in your app
Additionally, if you are interested in capturing spatial photo and video experiences, you can check out the session Build compelling spatial photo and video experiences, which covers the use of AVCaptureSession
and other related APIs.
Build a great Lock Screen camera capture experience
Find out how the LockedCameraCapture API can help you bring your capture application’s most useful information directly to the Lock Screen. Examine the API’s features and functionality, learn how to get started creating a capture extension, and find out how that extension behaves when the device is locked.
Build compelling spatial photo and video experiences
Learn how to adopt spatial photos and videos in your apps. Explore the different types of stereoscopic media and find out how to capture spatial videos in your iOS app on iPhone 15 Pro. Discover the various ways to detect and present spatial media, including the new QuickLook Preview Application API in visionOS. And take a deep dive into the metadata and stereo concepts that make a photo or video spatial.
Introducing enterprise APIs for visionOS
Find out how you can use new enterprise APIs for visionOS to create spatial experiences that enhance employee and customer productivity on Apple Vision Pro.
Capture HDR content with ScreenCaptureKit
Learn how to capture high dynamic colors using ScreenCaptureKit, and explore new features like HDR support, microphone capture, and straight-to-file recording.