How to open the ImagePicker in SwiftUI?

Question

I need to open the ImagePicker in my app using SwiftUI, how can I do that?

I thought about using the UIImagePickerController, but I don\'t know how to do that in Swi

Answer 1

iOS 14 Xcode 12 - Photo Picker SwiftUI with Reusable View with limits allowed

struct ImagePickerView: UIViewControllerRepresentable {
    
    @Binding var images: [UIImage]
    @Binding var showPicker: Bool
    var selectionLimit: Int
    
    func makeUIViewController(context: Context) -> some UIViewController {
        var config = PHPickerConfiguration()
        config.filter = .images
        config.selectionLimit = selectionLimit
        let picker = PHPickerViewController(configuration: config)
        picker.delegate = context.coordinator
        return picker
    }
    
    func updateUIViewController(_ uiViewController: UIViewControllerType, context: Context) { }
    
    func makeCoordinator() -> Coordinator {
        Coordinator(parent: self)
    }
    
    class Coordinator: NSObject, PHPickerViewControllerDelegate {

        var parent: ImagePickerView
        
        init(parent: ImagePickerView) {
            self.parent = parent
        }
        
        func picker(_ picker: PHPickerViewController, didFinishPicking results: [PHPickerResult]) {
            
            parent.showPicker.toggle()
            
            for img in results {
                if img.itemProvider.canLoadObject(ofClass: UIImage.self) {
                    img.itemProvider.loadObject(ofClass: UIImage.self) { (image, err) in
                        guard let image1 = image else { return }
                        
                        DispatchQueue.main.async {
                            self.parent.images.append(image1 as! UIImage)
                        }
                    }
                } else {
                    // Handle Error
                    parent.showPicker.toggle()
                }
            }
        }
    }
}

then in View you can do

VStack {          
    Image(systemName: "camera.viewfinder")
        .resizable()
        .aspectRatio(contentMode: .fit)
        .onTapGesture {
            self.viewModel.pickerBool.toggle()
        }
}
.sheet(isPresented: self.$viewModel.pickerBool) {
    ImagePickerView(images: self.$viewModel.images, showPicker: self.$viewModel.pickerBool, selectionLimit: 3)
}