如何在Swift中调整AVPlayer的宽度和高度

我在用 AVKit 从url播放视频,视频播放没有任何问题。我创造了一个 PlayerViewClass 将玩家指定给视图。

PlayerViewClass。敏捷的

import UIKit
import AVKit
import AVFoundation


class PlayerViewClass: UIView {

override static var layerClass: AnyClass {

    return AVPlayerLayer.self
}

var playerLayer: AVPlayerLayer {
    return layer as! AVPlayerLayer
}

var player: AVPlayer? {
    get {
        return playerLayer.player
    }

    set {
        playerLayer.player = newValue
    }
}

}

我把它用在 cellForItemAt 我的方法 ViewController

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
    guard let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "videoCell", for: indexPath) as? VideoCollectionCell else {
            return UICollectionViewCell()
        }

    let videoUrl = URL(string: "file.mp4")

    let avPlayer = AVPlayer(url: videoUrl!)
    cell.playerView.playerLayer.player = avPlayer
    cell.playerView.frame = CGRect(x: 0, y: 0, width: 352, height: 180) // it is not resizing
    cell.playerView.player?.play()
    return cell
}

我不明白怎样才能把我的播放器调整到整个手机的大小 myCell 高度和宽度:-

CGSize(width: 352, height: 180)

CollectionViewCell 课程:-

class VideoCollectionCell: UICollectionViewCell {

@IBOutlet weak var playerView: PlayerViewClass!


override func awakeFromNib() {
    super.awakeFromNib()

}
}

请帮忙。