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无法阻止AVPlayer

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19

我目前正在使用 Swift 测试AVPlayer与音频流网址的使用情况 . 有play()和pause()方法，但问题是，仅暂停，流仍然缓存在设备中 .

这是我的测试代码：

import UIKit
import AVFoundation

class ViewController: UIViewController {

    let player = AVPlayer(URL: NSURL(string: "http://streaming.radio.rtl.fr/rtl-1-48-192")!)

    @IBOutlet weak var btnPlay: UIButton!

    override func viewDidLoad() {
        super.viewDidLoad()            
    }

    @IBAction func btnPress(sender: AnyObject) {
        if (btnPlay.titleLabel?.text == "Play") {
            initPlayer()
            btnPlay.setTitle("Stop", forState: UIControlState.Normal)
        } else {
            stopPlayer()
            btnPlay.setTitle("Play", forState: UIControlState.Normal)
        }
    }

    func initPlayer()  {
        player.play()
    }

    func stopPlayer() {
        // player.currentItem = nil // Last thing I tried, but generate an error
        player.pause()
    }
}

Here are the issues when trying somethings :

player = nil ："Cannot assign a value of type 'NilLiteralCOnvertible' to a value of type 'AVPlayer'"

player.currentItem = nil ："Cannot assign to property: 'currentItem' is a get-only property"

我尝试了一切，甚至通过AVQueuePlayer没有任何有效的结果 . （显然，因为我的情况只有一个项目） .

如何 stop AVPlayer 或 destroy his instance ？

ios swift avplayer

3 回答

  • 29

    如果将 player 声明为可选变量，则可以将播放器设置为 nil 以取消分配它 .

    愚蠢的例子但它显示了会发生什么：

    import UIKit
import AVFoundation

class ViewController: UIViewController {

    @IBOutlet weak var btnPlay: UIButton!

    var player:AVPlayer?

    override func viewDidLoad() {
        super.viewDidLoad()
    }

    @IBAction func btnPress(sender: AnyObject) {
        if (btnPlay.titleLabel?.text == "Play") {
            initPlayer()
            btnPlay.setTitle("Stop", forState: UIControlState.Normal)
        } else {
            stopPlayer()
            btnPlay.setTitle("Play", forState: UIControlState.Normal)
        }
    }

    func initPlayer()  {
        if let play = player {
            print("playing")
            play.play()
        } else {
            print("player allocated")
            player = AVPlayer(URL: NSURL(string: "http://streaming.radio.rtl.fr/rtl-1-48-192")!)
            print("playing")
            player!.play()
        }
    }

    func stopPlayer() {
        if let play = player {
            print("stopped")
            play.pause()
            player = nil
            print("player deallocated")
        } else {
            print("player was already deallocated")
        }
    }
}
    回复于
  • 17

    从这个post我找到了在离开或开始新玩家之前完全停止AVPlayer的最佳解决方案：

    videoPlayer.replaceCurrentItemWithPlayerItem(nil)
    回复于
  • 3

    SWIFT 3 Version:

    player.replaceCurrentItem(with: nil)
    回复于

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