如何在AVPlayerViewController中隐藏PlaybackControls

import AVKit

// 创建AVPlayer实例，用于控制视频播放
let player = AVPlayer(url: videoURL)

// 创建AVPlayerViewController实例
let playerViewController = AVPlayerViewController()
playerViewController.player = player

// 隐藏默认的播放控制界面
playerViewController.showsPlaybackControls = false

// 自定义播放控制界面
let customControlsView = UIView()
// 添加自定义的UI元素到customControlsView上，例如播放按钮、进度条等

// 将自定义的播放控制界面添加到AVPlayerViewController的view上
playerViewController.contentOverlayView?.addSubview(customControlsView)

// 将AVPlayerViewController添加到视图层级中
self.addChild(playerViewController)
self.view.addSubview(playerViewController.view)
playerViewController.view.frame = self.view.bounds
playerViewController.didMove(toParent: self)