The function does not work in UIViewControllerRepresentable - swift

Question

I am trying to implement the unsplash-photopicker-ios component in SwiftUI through the UIViewControllerRepresentable. The view starts successfully, but the unsplashPhotoPicker function does not work, it always returns nil, can someone tell me what the problem is.
import SwiftUI
import UnsplashPhotoPicker
struct UnsplashImagePicker: UIViewControllerRepresentable {
var urlUnsplashImage = [UnsplashPhoto]()
let configuration = UnsplashPhotoPickerConfiguration(
accessKey: "f99d21d6eb682196455dd29b621688aff2d525c7c3a7f95bfcb05d497f38f5dc",
secretKey: "ccff858162e795c062ce13e9d16a2cf607076d0eb185141e35b14f589b1cd713",
allowsMultipleSelection: false)
func makeUIViewController(context: UIViewControllerRepresentableContext<UnsplashImagePicker>) -> UnsplashPhotoPicker {
let unsplashImagePicker = UnsplashPhotoPicker(configuration: configuration)
unsplashImagePicker.delegate = context.coordinator
return unsplashImagePicker
}
func makeCoordinator() -> UnsplashImagePicker.Coordinator {
Coordinator(self)
}
class Coordinator: NSObject, UnsplashPhotoPickerDelegate, UINavigationControllerDelegate {
var parent: UnsplashImagePicker
init(_ parent: UnsplashImagePicker) {
self.parent = parent
}
func unsplashPhotoPicker(_ photoPicker: UnsplashPhotoPicker, didSelectPhotos photos: [UnsplashPhoto]) {
print(photos)
}
func unsplashPhotoPickerDidCancel(_ photoPicker: UnsplashPhotoPicker) {
print("Unsplash photo picker did cancel")
}
}
func updateUIViewController(_ uiViewController: UnsplashPhotoPicker, context: UIViewControllerRepresentableContext<UnsplashImagePicker>) {
}
}

Answer 1

You need to present the Unsplashpicker from a different UIViewcontroller.The Unsplashpicker could not be directly used as UIViewControllerRepresentable.
import SwiftUI
import UIKit
import UnsplashPhotoPicker
struct UnsplashPresenter: UIViewControllerRepresentable {
func updateUIViewController(_ uiViewController: UIViewController, context: Context) {
//
}
func makeUIViewController(context: Context) -> UIViewController {
return UnsplashPickerVC()
}
typealias UIViewControllerType = UIViewController
}
class UnsplashPickerVC: UIViewController, UnsplashPhotoPickerDelegate {
func unsplashPhotoPicker(_ photoPicker: UnsplashPhotoPicker, didSelectPhotos photos: [UnsplashPhoto]) {
print("=============== New Photo Selected =============== \n")
print(photos)
}
func unsplashPhotoPickerDidCancel(_ photoPicker: UnsplashPhotoPicker) {
print("did cancel")
}
var outputImage = UIImage(named: "Instructions.png")
#IBOutlet weak var imageView: UIImageView!
override func viewDidLoad() {
super.viewDidLoad()
let button = UIButton()
button.frame = CGRect(x: (self.view.frame.size.width / 2) - 25, y: (self.view.frame.size.height / 2) - 50, width: 100, height: 50)
button.backgroundColor = UIColor.blue
button.setTitle("Pick Images", for: .normal)
button.addTarget(self, action: #selector(pickImages), for: .touchUpInside)
self.view.addSubview(button)
}
#objc func pickImages(sender: UIBarButtonItem) {
let configuration = UnsplashPhotoPickerConfiguration(
accessKey: "<Your Access Key >",
secretKey: "<Your Secret Key >"
)
let photoPicker = UnsplashPhotoPicker(configuration: configuration)
photoPicker.photoPickerDelegate = self
present(photoPicker, animated: true, completion: nil)
}
}