This repository contains a simple but comprehensive sample app illustrating the usage of SwiftUI's onDrag and onDrop view modifiers, along with SwiftUI's DropDelegate.
This sample app showcases a list of items that users can reorder through drag and drop operations. The items in the list are fully draggable, and each item can accept a drop, which triggers a reordering of the list. This functionality is implemented using SwiftUI's onDrag and onDrop view modifiers, and the behavior upon drop is controlled via a custom DropDelegate.
This view modifier is used to initiate a drag operation. In this sample app, each item in the list is wrapped with an onDrag view modifier that begins a drag operation when the user starts a drag gesture on the item.
This view modifier is used to specify a drop operation. In this sample app, each item in the list is also wrapped with an onDrop view modifier that accepts the drop and triggers the reordering of the list.
This SwiftUI protocol is used to handle the drop operation. In this sample app, a custom DropDelegate is used to control what happens when an item is dropped. The custom DropDelegate modifies the order of the list according to the drag and drop operation.
The DropDelegate protocol is used in conjunction with the onDrop modifier. It provides methods that allow you to handle various stages of the drag and drop process.
In this application, we've created a custom DropDelegate (MyDropDelegate) that handles the reordering of the entities within the list. The DropDelegate updates the list of entities when a drop operation occurs, changing the order based on the position of the drop.
iOS: This sample app requires iOS 14 or later.
This project is licensed under the MIT License - see the LICENSE file for details