質問編集履歴
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XcodeのThread 4: signal SIGABRTエラーについて
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開発環境
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Xcode 11.6
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Swift 5.2.4
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現在Xcodeで
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「絶対に挫折しないiPhoneアプリ開発「超」入門」を読み進めながらカメラアプリを作成しています
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実機（iPhone）で動かして見ると
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UsePhotoと言うボタンを押すと
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```Swift
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Thread 4: signal SIGABRT //４のところの数字は毎回変わります
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```
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と言うエラーが出て止まってしまいます
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Storyboardなら[この記事](https://qiita.com/nekonekonekoe/items/ebef3446bca42e8babfd)に書いてある方法で関連付けを切れば良いとわかったのですがSwiftUIの場合どうしたら良いかわかりません
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ソースコード
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ContentView.swift
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```Swift
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import SwiftUI
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struct ContentView: View {
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@State var image:Image?
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@State var isPicking = false
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var body: some View {
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ZStack {
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VStack {
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VStack {
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Spacer()
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image?
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.resizable()
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.scaledToFit()
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Spacer()
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}
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HStack {
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Spacer()
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Button(action: {
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self.isPicking = true
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}) {
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Image(systemName: "camera")
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Text("カメラ")
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}.padding()
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}
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}
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if isPicking {
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ImagePicker(image: $image, isPicking: $isPicking)
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.edgesIgnoringSafeArea(.all)
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.transition(.move(edge: .bottom))
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.animation(.easeInOut)
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}
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}
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}
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}
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```
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Coordinator.swift
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```Swift
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import SwiftUI
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class Coordinator: NSObject, UINavigationControllerDelegate, UIImagePickerControllerDelegate {
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var parent:ImagePicker
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init(_ parent:ImagePicker) {
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self.parent = parent
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}
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func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
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let uiImage = info[.originalImage] as! UIImage
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UIImageWriteToSavedPhotosAlbum(uiImage, nil, nil, nil)
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parent.image = Image(uiImage: uiImage.redraw())
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parent.isPicking = false
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}
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func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
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parent.isPicking = false
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}
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}
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```
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ImagePicker.swift
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```Swift
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import SwiftUI
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struct ImagePicker: UIViewControllerRepresentable {
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@Binding var image:Image?
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@Binding var isPicking:Bool
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func makeCoordinator() -> Coordinator {
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Coordinator(self)
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}
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func makeUIViewController(context: Context) -> UIImagePickerController {
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let picker = UIImagePickerController()
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picker.sourceType = .camera
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picker.delegate = context.coordinator
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return picker
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}
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func updateUIViewController(_ uiViewController: UIImagePickerController, context: Context) {
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}
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}
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struct ImagePicker_Previews: PreviewProvider {
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static var previews: some View {
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ImagePicker(image: .constant(nil), isPicking: .constant(true))
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}
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}
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```
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UIImageExtensions.swift
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```Swift
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import UIKit
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238
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239
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extension UIImage {
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func redraw() -> UIImage {
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let format = UIGraphicsImageRendererFormat()
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format.scale = 1
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return UIGraphicsImageRenderer(size: size, format: format)
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.image {
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context in
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draw(in: CGRect(origin: .zero, size: size))
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}
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}
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}
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```
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