通过滑动手势的函数传递参数

Question

我想在执行手势时通过参数传递两个参数，滑动手势和AVPlayerLayer。这就是我尝试过的：

let player = AVPlayer(url: url)
let playerLayer = AVPlayerLayer(player: player)
let slideDown = UISwipeGestureRecognizer(target: self, action: #selector(dismissTest(gesture: slideDown, playerLayer: playerLayer)))
slideDown.direction = .down
addGestureRecognizer(slideDown)

这是dismissTest函数：

@objc func dismissTest(gesture: UISwipeGestureRecognizer, playerLayer: AVPlayerLayer) {
UIView.animate(withDuration: 0.4) {
    if let theWindow = UIApplication.shared.keyWindow {
        gesture.view?.frame = CGRect(x:theWindow.frame.width - 115 , y: theWindow.frame.height - 208, width: 100 , height: 178)
        playerLayer.frame = CGRect(x:theWindow.frame.width - 115 , y: theWindow.frame.height - 208, width: 100 , height: 178)
        }
    }
}

然而，在尝试这个时我得到错误：

  

在其自己的初始值

中使用的变量

如果我不想传递AVPlayerLayer参数，这就是我的工作，它可以正常工作：

let slideDown = UISwipeGestureRecognizer(target: self, action: #selector(dismissTest(gesture:)))
        slideDown.direction = .down
        addGestureRecognizer(slideDown)



    @objc func dismissTest(gesture: UISwipeGestureRecognizer) {
    print("true")
    UIView.animate(withDuration: 0.4) {
        if let theWindow = UIApplication.shared.keyWindow {
            gesture.view?.frame = CGRect(x:theWindow.frame.width - 115 , y: theWindow.frame.height - 208, width: 100 , height: 178)
        }
    }
}

当我添加AVPlayerLayer参数时，一切都搞砸了，我得到错误，比如缺少参数。如何更改函数，以便允许我传递手势参数和AVPlayerLayer参数？