35 Để áp dụng hiệu ứng Blur vào UIView

Swift3.0 // // ViewController.swift // UIKit035_3.0 // // Created by KimikoWatanabe on 2016/08/18. // Copyright © 2016年 FaBo, Inc. All rights reserved. // import UIKit class ViewController: UIViewController { private var effectView : UIVisualEffectView! private var mySegcon : UISegmentedControl! override func viewDidLoad() { super.viewDidLoad() // 背景画像を生成. let image = UIImage(named: "ci005") let imageView = UIImageView(frame: self.view.bounds) imageView.image = image self.view.addSubview(imageView) // SegmentedControlを生成. mySegcon = UISegmentedControl(items: ["Dark", "ExtraLight", "Light"]) mySegcon.center = CGPoint(x:self.view.center.x, y:self.view.bounds.maxY - 50) mySegcon.backgroundColor = UIColor.gray mySegcon.tintColor = UIColor.white mySegcon.addTarget(self, action: #selector(ViewController.onClickMySegmentedControl(sender:)), for: UIControlEvents.valueChanged) self.view.addSubview(mySegcon) } /* エフェクトを適用する. */ internal func addVirtualEffectView(effect : UIBlurEffect!){ if effectView != nil { effectView.removeFromSuperview() } // Blurエフェクトを適用するEffectViewを作成. effectView = UIVisualEffectView(effect: effect) effectView.frame = CGRect(x:0, y:0, width:200, height:400) effectView.layer.position = CGPoint(x:mySegcon.bounds.midX, y:-(effectView.frame.midY + 20) ) effectView.layer.masksToBounds = true effectView.layer.cornerRadius = 20.0 mySegcon.addSubview(effectView) } /* SegmentedControlの値が変わった時に呼び出されるメソッド. */ internal func onClickMySegmentedControl(sender : UISegmentedControl){ var effect : UIBlurEffect! switch sender.selectedSegmentIndex { case 0: // LightなBlurエフェクトを作る. effect = UIBlurEffect(style: UIBlurEffectStyle.dark) case 1: // DarkなBlurエフェクトを作る. effect = UIBlurEffect(style: UIBlurEffectStyle.light) case 2: // ExtraLightなBlurエフェクトを作る. effect = UIBlurEffect(style: UIBlurEffectStyle.extraLight) default: print("Error") } self.addVirtualEffectView(effect: effect) } } Swift 2.3 // // ViewController.swift // UIKit035_2.3 // // Created by KimikoWatanabe on 2016/08/18. // Copyright © 2016年 FaBo, Inc. All rights reserved. // import UIKit class ViewController: UIViewController { private var effectView : UIVisualEffectView! private var mySegcon : UISegmentedControl! override func viewDidLoad() { super.viewDidLoad() // 背景画像を生成. let image = UIImage(named: "ci005") let imageView = UIImageView(frame: self.view.bounds) imageView.image = image self.view.addSubview(imageView) // SegmentedControlを生成. mySegcon = UISegmentedControl(items: ["Dark", "ExtraLight", "Light"]) mySegcon.center = CGPointMake(self.view.center.x, self.view.bounds.maxY - 50) mySegcon.backgroundColor = UIColor.grayColor() mySegcon.tintColor = UIColor.whiteColor() mySegcon.addTarget(self, action: #selector(ViewController.onClickMySegmentedControl(_:)), forControlEvents: UIControlEvents.ValueChanged) self.view.addSubview(mySegcon) } /* エフェクトを適用する. */ internal func addVirtualEffectView(effect : UIBlurEffect!){ if effectView != nil { effectView.removeFromSuperview() } // Blurエフェクトを適用するEffectViewを作成. effectView = UIVisualEffectView(effect: effect) effectView.frame = CGRectMake(0, 0, 200, 400) effectView.layer.position = CGPointMake(mySegcon.bounds.midX, -(effectView.frame.midY + 20) ) effectView.layer.masksToBounds = true effectView.layer.cornerRadius = 20.0 mySegcon.addSubview(effectView) } /* SegmentedControlの値が変わった時に呼び出されるメソッド. */ internal func onClickMySegmentedControl(sender : UISegmentedControl){ var effect : UIBlurEffect! switch sender.selectedSegmentIndex { case 0: // LightなBlurエフェクトを作る. effect = UIBlurEffect(style: UIBlurEffectStyle.Dark) case 1: // DarkなBlurエフェクトを作る. effect = UIBlurEffect(style: UIBlurEffectStyle.Light) case 2: // ExtraLightなBlurエフェクトを作る. effect = UIBlurEffect(style: UIBlurEffectStyle.ExtraLight) default: print("Error") } self.addVirtualEffectView(effect) } } 2.3と3.0の差分 UIColorの参照方法が変更(UIColor.grayColor()->UIColor.gray) CGRect,CGPointの初期化方法の変更(CGRectMake,CGPointMakeの廃止)