1import UIKit
2import AVKit
3
4final class VideoViewController: UIViewController {
5    private var player: AVPlayer?
6
7    @IBAction func playTapped(_ sender: UIButton) {
8        guard let url = Bundle.main.url(forResource: "intro", withExtension: "mp4") else {
9            print("Bundled video not found")
10            return
11        }
12
13        let player = AVPlayer(url: url)
14        let controller = AVPlayerViewController()
15        controller.player = player
16        self.player = player
17
18        present(controller, animated: true) {
19            player.play()
20        }
21    }
22}

1import UIKit
2import AVKit
3
4func documentURL(fileName: String) -> URL? {
5    FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first?
6        .appendingPathComponent(fileName)
7}
8
9final class DownloadedVideoController: UIViewController {
10    private var player: AVPlayer?
11
12    func playDownloadedVideo(named fileName: String) {
13        guard let url = documentURL(fileName: fileName),
14              FileManager.default.fileExists(atPath: url.path) else {
15            print("Sandbox video not found")
16            return
17        }
18
19        let player = AVPlayer(url: url)
20        let controller = AVPlayerViewController()
21        controller.player = player
22        self.player = player
23
24        present(controller, animated: true) {
25            player.play()
26        }
27    }
28}

1import UIKit
2import AVKit
3
4final class EmbeddedVideoController: UIViewController {
5    private let playerController = AVPlayerViewController()
6
7    override func viewDidLoad() {
8        super.viewDidLoad()
9
10        addChild(playerController)
11        playerController.view.translatesAutoresizingMaskIntoConstraints = false
12        view.addSubview(playerController.view)
13        playerController.didMove(toParent: self)
14
15        NSLayoutConstraint.activate([
16            playerController.view.leadingAnchor.constraint(equalTo: view.leadingAnchor),
17            playerController.view.trailingAnchor.constraint(equalTo: view.trailingAnchor),
18            playerController.view.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor),
19            playerController.view.heightAnchor.constraint(equalToConstant: 240)
20        ])
21    }
22
23    func loadVideo(url: URL) {
24        playerController.player = AVPlayer(url: url)
25    }
26}

1import AVFoundation
2
3func configureAudioSession() {
4    do {
5        let session = AVAudioSession.sharedInstance()
6        try session.setCategory(.playback)
7        try session.setActive(true)
8    } catch {
9        print("Audio session setup failed: \(error)")
10    }
11}