How can I update what video is playing on AVPlayerLayer in SwiftUI? - swift

Question

I have a #State variable in my main ContentView called url that is the source to an mp4 file. How can I modify either PlayerView or VideoView (both below) so that when something causes url to change in ContentView, the VideoView updates itself to play the new video at url?
I feel like I am on the right track by adding a Coordinator in VideoView, but this is something I saw in Apple's tutorials, and I don't really understand how to use it.
PlayerView.swift
import UIKit
import AVKit
class PlayerView: UIView {
private let playerLayer = AVPlayerLayer()
private var playerLooper: AVPlayerLooper?
init(frame: CGRect, url: URL) {
super.init(frame: frame)
// Obtain asset and create an item from it
let asset = AVAsset(url: url)
let item = AVPlayerItem(asset: asset)
// Create the video player using the URL passed in.
let player = AVQueuePlayer()
// Add the player to our Player Layer
playerLayer.player = player
playerLayer.videoGravity = .resizeAspect // Resizes content to fill whole video layer.
playerLayer.backgroundColor = UIColor.black.cgColor
layer.addSublayer(playerLayer)
// Create new player looper
playerLooper = AVPlayerLooper(player: player, templateItem: item)
// Start the movie
player.volume = 0
player.play()
}
required init?(coder: NSCoder) {
super.init(coder: coder)
}
override func layoutSubviews() {
super.layoutSubviews()
playerLayer.frame = bounds
}
}
VideoView
(wrapper)
import SwiftUI
import AVKit
struct VideoView: UIViewRepresentable {
#Binding var videoURL: URL
func makeCoordinator() -> Coordinator {
Coordinator(self)
}
func makeUIView(context: Context) -> UIView {
return PlayerView(frame: .zero, url: videoURL)
}
func updateUIView(_ playerView: UIView, context: Context) {
}
class Coordinator: NSObject {
var parent: VideoView
init(_ videoView: VideoView) {
self.parent = videoView
}
}
}