AVplayer 不播放来自 iPhone 个图库的视频

Question

所以，这段代码在我之前的项目中运行良好 iPhone 5s，但是当我将它嵌入到我的主项目中时它不起作用，它从图库中选择视频，显示播放器但继续搜索对于视频-（不会播放），只有黑色播放器屏幕，下方有搜索指示器和暂停按钮控件等。

此外，我在输出 window 中得到的唯一错误是：

[1524:458877] [discovery] errors encountered while discovering extensions: Error Domain=PlugInKit Code=13 "query cancelled" UserInfo={NSLocalizedDescription=query cancelled}

对其进行了大量搜索，并从 Apple 论坛上的一个答案得出结论，它不会产生任何影响，最好忽略它。

import UIKit
import AVKit
import AVFoundation

class GalleryVideoSelectorViewController: UIViewController,UIImagePickerControllerDelegate,UINavigationControllerDelegate {

let ipc = UIImagePickerController()

override func viewDidLoad() {
    super.viewDidLoad()
    ipc.delegate=self

}
@IBAction func SelectVideo(_ sender: Any) {
    ipc.sourceType = .photoLibrary

    ipc.mediaTypes = ["public.movie"]
    present(ipc,animated:true,completion: nil)
}

@IBAction func PlayBackVideo(_ sender: Any) {
    if let videoURL = UserDefaults.standard.url(forKey: "LullabyURL") {
        let player = AVPlayer(url: videoURL)
        let playerViewController = AVPlayerViewController()
        playerViewController.player = player
        self.present(playerViewController,animated:true)
        {
            playerViewController.player!.play()
        }
    }
}
@objc func imagePickerController(_ picker:UIImagePickerController, didFinishPickingMediaWithInfo info:[String:Any])
{
    ipc.dismiss(animated:true){

        var videourl = info["UIImagePickerControllerReferenceURL"] as? URL
        if let videoURL = videourl{

            defaults.set(videoURL,forKey: "LullabyURL")
            let player = AVPlayer(url:videourl!)
            print (videourl!)
            let playerViewController = AVPlayerViewController()
            playerViewController.player = player
            self.present(playerViewController,animated:true)
            {
                playerViewController.player!.play()
            }

        }

    }

}

Answer 1

这是我的委托的更新版本，它实际上是导致问题的原因。

@objc func imagePickerController(_ picker:UIImagePickerController, didFinishPickingMediaWithInfo info:[UIImagePickerController.InfoKey:Any])
{
    ipc.dismiss(animated:true){
       let videourl = info[UIImagePickerController.InfoKey.mediaURL] as! URL
            UserDefaults.standard.set(videourl,forKey: "LullabyURL")
            let player = AVPlayer(url: videourl)
            let playerViewController = AVPlayerViewController()
            playerViewController.player = player
            self.present(playerViewController,animated:true)
            {
                playerViewController.player!.play()
            }
    }
}

已将 "didFinishPickingMediaWithInfo info:[UIImagePickerController.InfoKey:Any]" 更改为 "didFinishPickingMediaWithInfo info:[UIImagePickerController.InfoKey:Any]"

和视频 Url 来自 "let videourl = info["UIImagePickerControllerReferenceURL"] as?URL" to "let videourl = info[UIImagePickerController.InfoKey.mediaURL] as! URL"

AVplayer 不播放来自 iPhone 个图库的视频

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