Swift / AppleTV4：如何將AVPlayer函數連接到AVPlayerViewController？

Question

這是一個名為AVPlayer的基本playMe函數，可通過AppleTV通過Swift播放MP3，MP4或Wav。 如何將其與AVPlayerViewController結合使用-即，如何使playMe（“ video”，“ mp4”）在AVPlayerViewController播放，在Main.storyboard和AVPlayerViewController之間建立連接需要哪些步驟？ GUI和Swift代碼中？

func playMe(inputfile: String, inputtype: String) {
    let path = NSBundle.mainBundle().pathForResource(inputfile, ofType:inputtype)!
    let videoURL = NSURL(fileURLWithPath: path)
    let player = AVPlayer(URL: videoURL)
    let playerLayer = AVPlayerLayer(player: player)
    playerLayer.frame = self.view.bounds
    self.view.layer.addSublayer(playerLayer)
    player.play()
}

Answer 1

一種實現方法是子類化AVPlayerViewController 。 AVPlayerViewController具有一個名為player的AVPlayer屬性。 AVPlayerViewController的子類可能看起來像這樣：

import UIKit
import AVKit

class MyPlayerViewController: AVPlayerViewController {

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        let path = NSBundle.mainBundle().pathForResource("myVideo", ofType:"mov")!
        let videoURL = NSURL(fileURLWithPath: path)
        player = AVPlayer(URL: videoURL)
    }

}

此實現將顯示默認的播放控件，並且可以與Siri遙控器一起使用。

這是使用prepareForSegue通過按下按鈕來執行此操作的代碼：

import UIKit
import AVFoundation
import AVKit
let playerViewControllerSegue = "play";
class MyViewController: UIViewController {    
    @IBAction func playMovie(sender: UIButton) {
        self.performSegueWithIdentifier(playerViewControllerSegue, sender: self);
    }

    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
        if (segue.identifier == playerViewControllerSegue){
            let path = NSBundle.mainBundle().pathForResource("7second", ofType:"mp4")!
            let videoURL = NSURL(fileURLWithPath: path)
            let player = AVPlayer(URL: videoURL)
            let playerViewController = segue.destinationViewController as! AVPlayerViewController
            playerViewController.player = player
            playerViewController.player?.play()
        }
    }

}