Drag and drop in SwiftUI

Drag and Drop in SwiftUI

Drag and drop functionality is a key feature in SwiftUI, and it is well-supported with accessibility technologies like VoiceOver and Voice Control. Here are some highlights from the sessions at WWDC 2024:

1. Accessibility in Drag and Drop:

   • SwiftUI supports accessible drag and drop experiences using the onDrag and onDrop modifiers.
   • You can enhance the drag and drop experience by defining multiple drop points on a single view, which can be accessed by VoiceOver.
   • Example: An app that uses drag and drop to create custom alerts for friends when they comment. The app uses a custom drop delegate to support multiple drop points on a single view, making it accessible for VoiceOver users.
   • Catch up on accessibility in SwiftUI (16:43)

2. Drop Destinations on Tabs:

   • Tabs in SwiftUI can be drop destinations, allowing for direct additions into tabs in the sidebar or tab bar through drag and drop.
   • To support drop destinations on tabs in SwiftUI, use the dropDestination modifier on the tab with the receiver type.
   • Example: Adding a photo into a collection via drag and drop.
   • Elevate your tab and sidebar experience in iPadOS (08:13)

3. Custom Drop Points:

   • Define points on your view that can be dragged or dropped on, and provide labels that describe the interaction.
   • Example: An app with three drop points for different sounds that can be set for an alert, making it accessible for VoiceOver.
   • Catch up on accessibility in SwiftUI (17:30)

Relevant Sessions

1. Catch up on accessibility in SwiftUI
2. Elevate your tab and sidebar experience in iPadOS

These sessions provide comprehensive insights into implementing drag and drop in SwiftUI, especially focusing on accessibility and enhancing user experience.