Save photo SwiftUI - ios

Question

Here I get the image from the link
struct CustomImageView: View {
var urlString: String
#ObservedObject var imageLoader = ImageLoaderService()
#State var image: UIImage = UIImage()
var body: some View {
Image(uiImage: image)
.resizable()
.aspectRatio(contentMode: .fit)
.frame(width:100, height:100)
.onReceive(imageLoader.$image) { image in
self.image = image
}
.onAppear {
imageLoader.loadImage(for: urlString)
}
}
}
class ImageLoaderService: ObservableObject {
#Published var image: UIImage = UIImage()
func loadImage(for urlString: String) {
guard let url = URL(string: urlString) else { return }
let task = URLSession.shared.dataTask(with: url) { data, response, error in
guard let data = data else { return }
DispatchQueue.main.async {
self.image = UIImage(data: data) ?? UIImage()
}
}
task.resume()
}
}
Here I display the received photo by the link and try to save it via .contextMenu
VStack {
CustomImageView(urlString: "https://stackoverflow.design/assets/img/logos/so/logo-stackoverflow.png")
.contextMenu {
Button(action: {
}) {
HStack {
Text("Save image")
Image(systemName: "square.and.arrow.down.fill")
}
}
}
}
When you click on a photo, a .contextMenu opens with a save button, but the photo is not saved, what should I do?

Answer 1

in your button action add
UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil)
where image is a UIImage, so you need to pass the image from your model and pass it to the above snippet.
Full Code:
struct CustomImageView: View {
var urlString: String
#ObservedObject var imageLoader: ImageLoaderService
#State var image: UIImage = UIImage()
var body: some View {
Image(uiImage: image)
.resizable()
.aspectRatio(contentMode: .fit)
.frame(width:100, height:100)
.onReceive(imageLoader.$image) { image in
self.image = image
}.onAppear {
imageLoader.loadImage(for: urlString)
}
}
}
class ImageLoaderService: ObservableObject {
#Published var image: UIImage = UIImage()
func loadImage(for urlString: String) {
guard let url = URL(string: urlString) else {return}
let task = URLSession.shared.dataTask(with: url) { data, response, error in
guard let data = data else {return}
DispatchQueue.main.async {
self.image = UIImage(data: data) ?? UIImage()
}
}
task.resume()
}
}
struct ContentView: View {
#ObservedObject var imageLoader = ImageLoaderService()
var body: some View {
VStack {
CustomImageView(urlString: "https://stackoverflow.design/assets/img/logos/so/logo-stackoverflow.png", imageLoader: imageLoader)
.contextMenu {
Button(action: {
UIImageWriteToSavedPhotosAlbum(imageLoader.image, nil, nil, nil)
}) {
HStack {
Text("Save image")
Image(systemName: "square.and.arrow.down.fill")
}
}
}
}
}
}