回答編集履歴
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MapViewクラスのコードを追記しました。
answer
CHANGED
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@@ -13,3 +13,122 @@
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@Bindingなどについて、面倒かもしれませんが、公式のチュートリアルの内容を一から実施してみて理解しておくと良いかもしれません。
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https://developer.apple.com/tutorials/swiftui/creating-and-combining-views
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## 追記です
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コメントありがとうございます。
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MapViewクラスだけ修正イメージを貼り付けてみます。
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(動かしていないので雰囲気だけ見てください。。)
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(`// *****`の付近が主な修正です。)
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```swift
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struct MapView: UIViewRepresentable {
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// ***** @Binding
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@Binding var num:Int
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@Binding var titlename:String
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@Binding var image: UIImage?
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func makeUIView(context: Context) -> MKMapView {
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let map = MKMapView()
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map.delegate = context.coordinator
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map.addGestureRecognizer(context.coordinator.myLongPress)
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return map
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}
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func makeCoordinator() -> Coordinator {
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Coordinator(self)
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}
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func updateUIView(_ mapView: MKMapView, context: Context) {
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let latitude = 43.31513, longitude = 143.08874
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let coordinate = CLLocationCoordinate2DMake(latitude, longitude)
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// 縮尺を設定
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let span = MKCoordinateSpan(latitudeDelta: 5, longitudeDelta: 5)
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// マップの中心を設定
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let region = MKCoordinateRegion(center: coordinate, span: span)
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mapView.setRegion(region, animated: true)
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}
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class Coordinator: NSObject, MKMapViewDelegate {
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var parent: MapView
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let myLongPress: UILongPressGestureRecognizer = UILongPressGestureRecognizer()
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init(_ parent: MapView) {
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self.parent = parent
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super.init()
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self.myLongPress.addTarget(self, action: #selector(recognizeLongPress))
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}
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@objc func recognizeLongPress(sender: UILongPressGestureRecognizer) {
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if sender.state == .ended {
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if let mapView = sender.view as? MKMapView {
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// タップした位置を取得
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let point = sender.location(in: mapView)
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// mapView上での位置に変換
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let coordinate = mapView.convert(point, toCoordinateFrom: mapView)
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print(coordinate.latitude)
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print(coordinate.longitude)
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print("-")
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// アノテーション作成
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let annotation = MKPointAnnotation()
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annotation.coordinate = coordinate
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//annotation.title = "taitooooru"
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mapView.addAnnotation(annotation)
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}
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}
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}
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func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {
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//@State var num:Int = 1
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//@State var titlename:String = "ssss"
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let identifier = "annotation"
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if let annotationView = mapView.dequeueReusableAnnotationView(withIdentifier: identifier) {
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annotationView.annotation = annotation
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return annotationView
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} else {
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let annotationView = MKAnnotationView(
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annotation: annotation,
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reuseIdentifier: identifier
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)
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// ***** MapViewクラスの@Bindingのプロパティを参照します
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//ピンのスタイルを変更
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if parent.num == 1{
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annotationView.image = UIImage(named: "pre")
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}else if parent.num == 2{
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annotationView.image = UIImage(named: "Eat")
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}
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//stackViewの設定
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let stackView = UIStackView()
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stackView.axis = NSLayoutConstraint.Axis.vertical
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stackView.alignment = UIStackView.Alignment.leading
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//ラベルの作成
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let title = UILabel()
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title.text = "\(parent.titlename)"
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title.font = UIFont.boldSystemFont(ofSize: 20)
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title.isUserInteractionEnabled = true
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stackView.addArrangedSubview(title)
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//景色の画像の作成
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let imageView = UIImageView(image: UIImage(named: "Try"))
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imageView.frame = CGRect(x: 0, y: 0, width: 50, height: 50)
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imageView.contentMode = .scaleAspectFit
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stackView.addArrangedSubview(imageView)
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annotationView.canShowCallout = true
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annotationView.detailCalloutAccessoryView = stackView
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annotationView.isUserInteractionEnabled = true
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return annotationView
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}
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}
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}
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}
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```
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