在 Swift 中播放来自服务器的视频文件 [英] Playing a video file from a server in Swift

问题描述

我正在尝试使用 Swift 从服务器播放视频.

I'm trying to play a video from a server using Swift.

我导入了 MediaPlayer 框架，这是我的代码:

I have imported MediaPlayer framework, here is my code:

import UIKit
import MediaPlayer

class VideoViewController: UIViewController {

   override func viewDidLoad() {
        super.viewDidLoad()

        var url:NSURL = NSURL(string: "http://jplayer.org/video/m4v/Big_Buck_Bunny_Trailer.m4v")        
        var moviePlayer = MPMoviePlayerController(contentURL: url)

        moviePlayer.view.frame = CGRect(x: 20, y: 100, width: 200, height: 150)        
        self.view.addSubview(moviePlayer.view)

        moviePlayer.fullscreen = true        
        moviePlayer.controlStyle = MPMovieControlStyle.Embedded        
   }
}

当我在模拟器中运行时，我只得到一个黑框，但无论我尝试从哪里加载视频，都没有播放视频.

I only get a black box when I run in the simulator but no video is playing no matter where I try to load a video from.

更新

这是当前代码

var url:NSURL = NSURL(string: "http://jplayer.org/video/m4v/Big_Buck_Bunny_Trailer.m4v")

var moviePlayer = MPMoviePlayerController(contentURL: url)

moviePlayer.view.frame = CGRect(x: 20, y: 100, width: 200, height: 150)        
moviePlayer.movieSourceType = MPMovieSourceType.File

self.view.addSubview(moviePlayer.view)        
moviePlayer.prepareToPlay()
moviePlayer.play()

这段代码有趣地播放了约 2 秒的视频，然后再次变黑！

This code interestingly plays ~2 seconds of video before going black again!

推荐答案

UPDATE 2019, Swift 4:

MPMovieControlStyle' 在 iOS 9.0 中被弃用:在 AVKit 中使用 AVPlayerViewController.

MPMovieControlStyle' was deprecated in iOS 9.0: Use AVPlayerViewController in AVKit.

所以，按照建议，让我们改变它.2016 年的原始答案如下.

So, following the advice, let's change it. Original answer from 2016 is below.

import UIKit
import AVKit
import AVFoundation

class ViewController: UIViewController {
    
    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)

        let url = URL(string: "https://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4")!
        
        playVideo(url: url)
    }
    
    func playVideo(url: URL) {
        let player = AVPlayer(url: url)
        
        let vc = AVPlayerViewController()
        vc.player = player
        
        self.present(vc, animated: true) { vc.player?.play() }
    }
}

原答案:

import UIKit
import MediaPlayer

class VideoViewController: UIViewController {

   var moviePlayer:MPMoviePlayerController!

   override func viewDidLoad() {
      super.viewDidLoad()

      let url:NSURL = NSURL(string: "http://jplayer.org/video/m4v/Big_Buck_Bunny_Trailer.m4v")

      moviePlayer = MPMoviePlayerController(contentURL: url)
      moviePlayer.view.frame = CGRect(x: 20, y: 100, width: 200, height: 150)

      self.view.addSubview(moviePlayer.view)
      moviePlayer.fullscreen = true

      moviePlayer.controlStyle = MPMovieControlStyle.Embedded

   }
}

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