swiftui image load optimization
Generated on 9/7/2024
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To optimize image loading in SwiftUI, you can take advantage of several techniques and APIs discussed during WWDC sessions. Here are some key points:
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HDR Image Handling: If you're working with HDR images, SwiftUI automatically handles tone mapping when using a
UIImageViewor a SwiftUIImageview. You can specify the dynamic range using theallowedDynamicRangemodifier. For more advanced control, consider using Core Image and Metal for interactive image changes. This was discussed in the session Use HDR for dynamic image experiences in your app. -
Dynamic Type and Image Scaling: When dealing with images in SwiftUI, especially in the context of dynamic type, you can use the
scaledMetricAPI to ensure images resize appropriately with text size changes. This is particularly useful for maintaining a balance between text and image sizes. This topic is covered in the session Get started with Dynamic Type. -
Concurrency for Image Processing: For applications that need to process multiple images, using Swift concurrency can significantly improve performance. This allows you to process batches of images simultaneously, which is beneficial for tasks like cropping or resizing images. This approach is discussed in the session Discover Swift enhancements in the Vision framework.
These techniques can help you optimize image loading and processing in your SwiftUI applications, ensuring a smooth and efficient user experience.
Use HDR for dynamic image experiences in your app
Discover how to read and write HDR images and process HDR content in your app. Explore the new supported HDR image formats and advanced methods for displaying HDR images. Find out how HDR content can coexist with your user interface — and what to watch out for when adding HDR image support to your app.
Discover Swift enhancements in the Vision framework
The Vision Framework API has been redesigned to leverage modern Swift features like concurrency, making it easier and faster to integrate a wide array of Vision algorithms into your app. We’ll tour the updated API and share sample code, along with best practices, to help you get the benefits of this framework with less coding effort. We’ll also demonstrate two new features: image aesthetics and holistic body pose.
Get started with Dynamic Type
Dynamic Type lets people choose their preferred text size across the system and all of their apps. To help you get started supporting Dynamic Type, we’ll cover the fundamentals: How it works, how to find issues with scaling text in your app, and how to take practical steps using SwiftUI and UIKit to create a great Dynamic Type experience. We’ll also show how you can best use the Large Content Viewer to make navigation controls accessible to everyone.
Discover area mode for Object Capture
Discover how area mode for Object Capture enables new 3D capture possibilities on iOS by extending the functionality of Object Capture to support capture and reconstruction of an area. Learn how to optimize the quality of iOS captures using the new macOS sample app for reconstruction, and find out how to view the final results with Quick Look on Apple Vision Pro, iPhone, iPad or Mac. Learn about improvements to 3D reconstruction, including a new API that allows you to create your own custom image processing pipelines.
What’s new in SwiftUI
Learn how you can use SwiftUI to build great apps for any Apple platform. Explore a fresh new look and feel for tabs and documents on iPadOS. Improve your window management with new windowing APIs, and gain more control over immersive spaces and volumes in your visionOS apps. We’ll also take you through other exciting refinements that help you make expressive charts, customize and layout text, and so much more.
Migrate your TVML app to SwiftUI
SwiftUI helps you build great apps on all Apple platforms and is the preferred toolkit for bringing your content into the living room with tvOS 18. Learn how to use SwiftUI to create familiar layouts and controls from TVMLKit, and get tips and best practices.
Build a spatial drawing app with RealityKit
Harness the power of RealityKit through the process of building a spatial drawing app. As you create an eye-catching spatial experience that integrates RealityKit with ARKit and SwiftUI, you’ll explore how resources work in RealityKit and how to use features like low-level mesh and texture APIs to achieve fast updates of the users’ brush strokes.