let screenBounds = UIScreen.mainScreen().bounds   
var initialOrigin: CGFloat = UIScreen.mainScreen().bounds.height - 108   
let offset: CGFloat = 108   
var lastItem: ViewModel?   
var currentURIs = [NSURL]()

lazy var panRecognizer: UIPanGestureRecognizer = UIPanGestureRecognizer(target: self, action:
    #selector(PlayerController.handlePanGesture(_:)))   
lazy var tapRecognizer: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action:
    #selector(PlayerController.handleTapGesture(_:)))

获取错误'Expected ',' separator'以及'Expected expression in list of expressions'上面的代码..如果有人启发我，那将是非常好..