I tried to make a SwiftUI class that conforms to UIViewRepresentable and implements makeUIView and updateUIView. But not able to complete it.Here is code :
Code:
struct ImagePicker : UIViewRepresentable {
@Binding var image: UIImage
class Coordinator: NSObject, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
@Binding var image: UIImage
init(image: Binding<UIImage>) {
$image = image
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
if let possibleImage = info[.editedImage] as? UIImage {
image = possibleImage
} else if let possibleImage = info[.originalImage] as? UIImage {
image = possibleImage
} else {
}
}
}
func makeCoordinator() -> Coordinator {
return Coordinator(image: $image)
}
func makeUIView(context: UIViewRepresentableContext<ImagePicker>) -> UIImageView {
let imageview = UIImageView()
let picker = UIImagePickerController()
picker.delegate = context.coordinator
return imageview
}
func updateUIView(_ uiView: UIImageView,
context: UIViewRepresentableContext<ImagePicker>) {
uiView.image = image
}
}
I tried imagePicker as control but unable to use.
I am using presentationMode here, to check for the view that is it presenting or not?
By using this you can dismiss() the UIImagePickerController.
Sample code for SwiftUI preview:
import SwiftUI
struct ContentView: View {
@State var isShowPicker: Bool = false
@State var image: Image? = Image("placeholder")
var body: some View {
NavigationView {
ZStack {
VStack {
image?
.resizable()
.scaledToFit()
.frame(height: 320)
Button(action: {
withAnimation {
self.isShowPicker.toggle()
}
}) {
Image(systemName: "photo")
.font(.headline)
Text("IMPORT").font(.headline)
}.foregroundColor(.black)
Spacer()
}
}
.sheet(isPresented: $isShowPicker) {
ImagePicker(image: self.$image)
}
.navigationBarTitle("Pick Image")
}
}
}
struct ImagePicker: UIViewControllerRepresentable {
@Environment(\.presentationMode)
var presentationMode
@Binding var image: Image?
class Coordinator: NSObject, UINavigationControllerDelegate, UIImagePickerControllerDelegate {
@Binding var presentationMode: PresentationMode
@Binding var image: Image?
init(presentationMode: Binding<PresentationMode>, image: Binding<Image?>) {
_presentationMode = presentationMode
_image = image
}
func imagePickerController(_ picker: UIImagePickerController,
didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
let uiImage = info[UIImagePickerController.InfoKey.originalImage] as! UIImage
image = Image(uiImage: uiImage)
presentationMode.dismiss()
}
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
presentationMode.dismiss()
}
}
func makeCoordinator() -> Coordinator {
return Coordinator(presentationMode: presentationMode, image: $image)
}
func makeUIViewController(context: UIViewControllerRepresentableContext<ImagePicker>) -> UIImagePickerController {
let picker = UIImagePickerController()
picker.delegate = context.coordinator
return picker
}
func updateUIViewController(_ uiViewController: UIImagePickerController,
context: UIViewControllerRepresentableContext<ImagePicker>) {
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
NavigationView {
ContentView()
}
}
}