SwiftでCATransform3Dを使う場合

ちょっと試してみようと思ったらすぐには分からなかったのでメモ代わりに。

灰色の箇所をタップすると灰色の部分がくるりと回ります。それだけ。

ViewController.swift

import UIKit


class ViewController: UIViewController {
                            
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        
        let view : UIView = UIView(frame: CGRectMake(100, 100, 100, 100))
        
        view.backgroundColor = UIColor.grayColor()
        view.userInteractionEnabled = true
        view.tag = 1
        
        self.view.addSubview(view)
        
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


    override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {
        super.touchesBegan(touches, withEvent: event)
        
        let touche : UITouch = touches.anyObject() as UITouch
        
        switch (touche.view.tag as Int) {
        case 1:
            let animation : CABasicAnimation = CABasicAnimation(keyPath: "transform")
            animation.duration = 0.5
            animation.repeatCount = 1
            animation.autoreverses = true
            
            let transform : CATransform3D = CATransform3DMakeRotation(CGFloat(M_PI),  1.0, 0.5, 0.0)
            animation.toValue = NSValue(CATransform3D : transform)
            
            touche.view.layer.addAnimation(animation, forKey: "transform")
        default:
            break
        }
    }
}