Swift2 Facebook Popでフェードイン

SomeVIewController.swift

class SomeViewController: UIViewController {

    
    override func viewDidLoad() {
        super.viewDidLoad()

        self.view.backgroundColor = UIColor.blueColor()
        
        // ラベル
        var label: UILabel = UILabel()
        label.frame = CGRect.init(x: 0, y: 300, width: self.view.frame.size.width, height: 200)
        label.lineBreakMode = NSLineBreakMode.ByCharWrapping
        label.numberOfLines = 0
        label.text = "FadeIn...."
        self.view.addSubview(labelTran)

        // フェードイン
        let anim = POPBasicAnimation(propertyNamed: kPOPViewAlpha)
        anim.timingFunction = CAMediaTimingFunction.init(name: kCAMediaTimingFunctionEaseInEaseOut)
        anim.fromValue = 0.0
        anim.toValue = 1.0
        anim.duration = 3.0
        labelTran.pop_addAnimation(anim, forKey: "fade")
    }
...