iOS 9中的MPMoviePlayer [英] MPMoviePlayer in iOS 9

问题描述

我已经在iOS 8中创建了一个在后台播放电影的功能，现在当我想在iOS 9中使用它时，它会给我一个警告，并说最好不要使用MPMoviePlayer而是使用AVPlayer。但我对AVPlayer一无所知。如何在没有使用AVPlayer而不是MPMoviePlayer的警告的情况下将其转换为正确的功能？
继承人func：

i have made a function in iOS 8 to play a movie in the background and now when i want to use it in iOS 9 it gives me a warning and says that it best not to use MPMoviePlayer and instead use AVPlayer. but i don't know anything about AVPlayer. how can i convert this to a proper function without warning that uses AVPlayer instead of MPMoviePlayer? heres the func :

func playVideo() ->Bool {




    let path = NSBundle.mainBundle().pathForResource("video", ofType:"mov")
    //take path of video

    let url = NSURL.fileURLWithPath(path!)

    moviePlayer = MPMoviePlayerController(contentURL: url)
    //asigning video to moviePlayer

    if let player = moviePlayer {
        player.view.frame = self.view.bounds
        //setting the video size to the view size

        player.controlStyle = MPMovieControlStyle.None
        //Hiding the Player controls


        player.prepareToPlay()
        //Playing the video


        player.repeatMode = .One
        //Repeating the video

        player.scalingMode = .AspectFill
        //setting the aspect ratio of the player

        self.view.addSubview(player.view)
        self.view.addSubview(blurView)
        self.view.sendSubviewToBack(blurView)
        self.view.sendSubviewToBack(player.view)

        //adding the player view to viewcontroller
        return true

    }
    return false
}

推荐答案

AVPlayerViewController 是一个UIViewController的子类。因此，不要使用常规视图控制器创建自定义电影播放器​​控制器，如下所示：

AVPlayerViewController is a subclass of UIViewController. So instead of using a regular view controller create your custom movie player controller as follow:

不要继承AVPlayerViewController。覆盖此类的
方法不受支持并导致未定义的行为。

Do not subclass AVPlayerViewController. Overriding this class’s methods is unsupported and results in undefined behavior.

尝试这样：

import UIKit
import AVKit
import AVFoundation
class MoviePlayerViewController: AVPlayerViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        player = AVPlayer(URL: url)
        videoGravity = AVLayerVideoGravityResizeAspect
        showsPlaybackControls = true
        //  player?.play() // uncomment this line to autoplay
        NSNotificationCenter.defaultCenter().addObserver(self, selector: "didPlayToEndTime", name: AVPlayerItemDidPlayToEndTimeNotification, object: nil)
    }
    func didPlayToEndTime(){
        print("didPlayToEndTime")
    }
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
}

要将其用作背景，您可以按照以下步骤操作：

To use it as a background you can do as follow:

import UIKit
import AVKit
import AVFoundation

class ViewController: UIViewController {
    let moviePlayerController = AVPlayerViewController()
    var aPlayer = AVPlayer()
    func playBackgroundMovie(){
        if let url = NSBundle.mainBundle().URLForResource("video", withExtension: "mov") {
            aPlayer = AVPlayer(URL: url)
        }
        moviePlayerController.player = aPlayer
        moviePlayerController.view.frame = view.frame
        moviePlayerController.view.sizeToFit()
        moviePlayerController.videoGravity = AVLayerVideoGravityResizeAspect
        moviePlayerController.showsPlaybackControls = false
        aPlayer.play()
        view.insertSubview(moviePlayerController.view, atIndex: 0)
    }

    func didPlayToEndTime(){
        aPlayer.seekToTime(CMTimeMakeWithSeconds(0, 1))
        aPlayer.play()
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        playBackgroundMovie()
        NSNotificationCenter.defaultCenter().addObserver(self, selector: "didPlayToEndTime", name: AVPlayerItemDidPlayToEndTimeNotification, object: nil)
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
}

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