Picking A Video File From PhotoLibrary With SwiftUI

 In SwiftUI, you can allow the user to pick a video file from their photo library using the `UIImagePickerController`. Here's a step-by-step guide to achieve this:


1. **Import Required Modules**:


   Ensure you import the necessary modules at the top of your SwiftUI view file.


   ```swift

   import SwiftUI

   import UIKit

   ```


2. **Create a SwiftUI View**:


   Create a SwiftUI view where you will implement the video selection functionality.


   ```swift

   struct VideoPickerView: View {

       @State private var isShowingImagePicker = false

       @State private var selectedVideo: URL?

       

       var body: some View {

           VStack {

               if selectedVideo != nil {

                   VideoPlayer(player: AVPlayer(url: selectedVideo!))

                       .frame(height: 300)

               } else {

                   Button("Select Video") {

                       isShowingImagePicker.toggle()

                   }

               }

           }

           .sheet(isPresented: $isShowingImagePicker) {

               ImagePicker(selectedImage: $selectedVideo, mediaType: .movie)

           }

       }

   }

   ```


3. **Create an `ImagePicker` View**:


   Create a separate `ImagePicker` SwiftUI view for selecting a video. This view uses `UIImagePickerController` behind the scenes.


   ```swift

   struct ImagePicker: UIViewControllerRepresentable {

       @Binding var selectedVideo: URL?

       var mediaType: MediaType


       func makeCoordinator() -> Coordinator {

           return Coordinator(self)

       }


       func makeUIViewController(context: UIViewControllerRepresentableContext<ImagePicker>) -> UIImagePickerController {

           let picker = UIImagePickerController()

           picker.delegate = context.coordinator

           picker.mediaTypes = [mediaType.rawValue]

           return picker

       }


       func updateUIViewController(_ uiViewController: UIImagePickerController, context: UIViewControllerRepresentableContext<ImagePicker>) {

           // Update

       }


       class Coordinator: NSObject, UINavigationControllerDelegate, UIImagePickerControllerDelegate {

           var parent: ImagePicker


           init(_ parent: ImagePicker) {

               self.parent = parent

           }


           func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey: Any]) {

               if let url = info[.mediaURL] as? URL {

                   parent.selectedVideo = url

               }

               picker.dismiss(animated: true)

           }


           func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {

               picker.dismiss(animated: true)

           }

       }

   }

   ```


4. **Define `MediaType` Enumeration**:


   Define an enumeration to specify the media type you want to select. In this case, you'll select a movie (video).


   ```swift

   enum MediaType: String {

       case movie = "public.movie"

   }

   ```


5. **Usage**:


   You can use the `VideoPickerView` in your main SwiftUI content view or any other view where you want to allow the user to select a video.


   ```swift

   struct ContentView: View {

       var body: some View {

           VideoPickerView()

       }

   }

   ```


This code sets up a SwiftUI view that allows the user to select a video from their photo library using `UIImagePickerController`. The selected video is displayed using a `VideoPlayer`.

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