在容器视图中播放本地视频 Swift 4

Posted 2023-02-23

【中文标题】在容器视图中播放本地视频 Swift 4

【英文标题】：Playing a local Video in a container view Swift 4

【发布时间】：2018-03-05 09:25:23

【问题描述】：

我正在尝试在名为 AVPlayerViewController 的容器视图中播放视频，但是当您单击播放器视图播放视频时，它不会播放。有没有什么办法解决这一问题？这是我用来尝试播放视频的代码：

import UIKit
import AVKit

class IntroductionViewController: UIViewController 

    var avPlayer: AVPlayer!

    override func viewDidLoad() 
        super.viewDidLoad()
    

    func playVideo() 

        let filepath: String? = Bundle.main.path(forResource: "Video", ofType: "mp4")
        let fileURL = URL.init(fileURLWithPath: filepath!)

        avPlayer = AVPlayer(url: fileURL)
        let avPlayerController = AVPlayerViewController()
        avPlayerController.player = avPlayer
        avPlayerController.showsPlaybackControls = true
        avPlayerController.view.frame = CGRect(x: 44, y: 128, width: UIScreen.main.bounds.size.width, height: UIScreen.main.bounds.size.height)

        // Turn on video controlls 
          avPlayerController.showsPlaybackControls = true

        // play video

        avPlayerController.player?.play()
        self.view.addSubview(avPlayerController.view)

    

【问题讨论】：

任何崩溃日志？

没有崩溃日志。视频无法播放，但应用仍在运行。

你检查过***.com/a/25349246/6080920

我检查过了，只要你在应用程序的那个部分，它就会播放视频。当我点击视图控制器时，我需要播放视频

你能告诉我你在哪里打电话给playVideo()吗？

【参考方案1】：

您的代码中有一些概念性错误；如果您希望您的 IntroductionViewController 封装视频，则应将 AVPlayerViewController 添加为子项：

import UIKit
import AVKit

class IntroductionViewController: UIViewController 

    var avPlayer: AVPlayer!

    override func viewDidLoad() 
        super.viewDidLoad()
        playVideo()
    

    func playVideo() 

        let filepath: String? = Bundle.main.path(forResource: "videoplayback", ofType: "mp4")
        let fileURL = URL.init(fileURLWithPath: filepath!)

        avPlayer = AVPlayer(url: fileURL)
        let avPlayerController = AVPlayerViewController()
        avPlayerController.player = avPlayer
        avPlayerController.view.frame = CGRect(x: 0, y: 0, width: UIScreen.main.bounds.size.width, height: UIScreen.main.bounds.size.height)

        // Turn on video controlls
        avPlayerController.showsPlaybackControls = true

        // play video
        avPlayerController.player?.play()
        self.view.addSubview(avPlayerController.view)
        self.addChild(avPlayerController)
    

但是您的 IntroductionViewController 也可以扩展 AVPlayerViewController：

import UIKit
import AVKit

class AVViewController: AVPlayerViewController 

    var avPlayer: AVPlayer!

    override func viewDidLoad() 
        super.viewDidLoad()

        setupAndPlay()
    

    func setupAndPlay() 
        let filepath: String? = Bundle.main.path(forResource: "videoplayback", ofType: "mp4")
        let fileURL = URL.init(fileURLWithPath: filepath!)

        // Setup AVPlayer
        avPlayer = AVPlayer(url: fileURL)
        self.player = avPlayer
        self.view.frame = CGRect(x: 44, y: 128, width: UIScreen.main.bounds.size.width, height: UIScreen.main.bounds.size.height)

        // Turn on video controlls
        self.showsPlaybackControls = true

        // play video
        self.player?.play()
    

选择你的方式:)

【讨论】：

你不应该继承 AVPlayerViewController。 “不要继承 AVPlayerViewController。不支持覆盖此类的方法，并导致未定义的行为。”根据文档：developer.apple.com/documentation/avkit/avplayerviewcontroller