SWIFT TASK CONTINUATION MISUSE: loadTransferable(for:) leaked its continuation!

Question

Created Jun ’22

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I try use dropDestination(payloadType: String.self) in iOS 16 instead of .onDrop(of: [.plainText], ..., in iOS 15, but it doesn't work and I have

SWIFT TASK CONTINUATION MISUSE: loadTransferable(for:) leaked its continuation!

import SwiftUI

struct ContentView: View {

    @State var text: String = "🍌🍌"

        var body: some View {

            HStack {

                //  Text to drag

                Text(text)

                    .font(.title)

                    .draggable(text)

                /*    .onDrag { NSItemProvider(object: self.text as NSItemProviderWriting) }*/

                //  Area to drop

                RoundedRectangle(cornerRadius: 10)

                    .frame(width: 150, height: 150)

                   .dropDestination(payloadType: String.self) { (strings: [String], location) in

                        self.text = "Dropped My Bananas 🍌🍌!"

                        return true

                    }

                 /*   .onDrop(of: [.plainText], isTargeted: nil, perform: { _ in

                        self.text = "Dropped My Bananas 🍌🍌!"

                        return true

                    })*/

            }

        }

}

What wrong with my code?

Boost

Answer 1

ramnefors OP

Jun ’22

Can confirm, I get the same results with this simple code

struct ContentView: View {

    var body: some View {
        VStack {
            Image(systemName: "globe")
                .imageScale(.large)
                .foregroundColor(.accentColor)
                .draggable(Load(index: 1))
            Text("Hello, world!")
                .dropDestination(payloadType: Load.self, action: {(_, _) in return true})
        }
    }
}

struct Load: Transferable, Codable {
    var index: Int

    static var transferRepresentation: some TransferRepresentation {
            CodableRepresentation(contentType: .load)
    }
}`

1

Answer 2

newwbee OP

Aug ’22

Overview

Your original code works fine both on iOS and macOS
Please test on latest Xcode beta

Code change

One small code change (API has changed) for the latest Xcode beta:

.dropDestination(for: String.self) { (strings: [String], location) in

Tested on

macOS 13.0 Beta (22A5311f)
Xcode Version 14.0 beta 4 (14A5284g)

0