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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,141 @@ | ||
| // | ||
| // Switcher.swift | ||
| // SwitcherExample | ||
| // | ||
| // Created by Khoi Nguyen Nguyen on 11/2/15. | ||
| // Copyright © 2015 Khoi Nguyen Nguyen. All rights reserved. | ||
| // | ||
|
|
||
| import UIKit | ||
|
|
||
| protocol KNSwitcherChangeValueDelegate { | ||
| func switcherDidChangeValue(switcher: KNSwitcher,value: Bool) | ||
| } | ||
|
|
||
| class KNSwitcher: UIView { | ||
|
|
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| var button: UIButton! | ||
| var buttonLeftConstraint: NSLayoutConstraint! | ||
| var delegate: KNSwitcherChangeValueDelegate? | ||
|
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| @IBInspectable var on: Bool = false | ||
| @IBInspectable var originalImage:UIImage? | ||
| @IBInspectable var selectedImage:UIImage? | ||
| @IBInspectable var selectedColor:UIColor = UIColor(red: 126/255.0, green: 134/255.0, blue: 249/255.0, alpha: 1) | ||
| @IBInspectable var originalColor:UIColor = UIColor(red: 243/255.0, green: 229/255.0, blue: 211/255.0, alpha: 1) | ||
|
|
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| private var offCenterPosition: CGFloat! | ||
| private var onCenterPosition: CGFloat! | ||
|
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| init(frame: CGRect, on: Bool) { | ||
| super.init(frame: frame) | ||
| self.on = on | ||
| commonInit() | ||
| } | ||
|
|
||
| override func awakeFromNib() { | ||
| commonInit() | ||
| } | ||
|
|
||
| private func commonInit() { | ||
| button = UIButton(type: .custom) | ||
| self.addSubview(button) | ||
| button.translatesAutoresizingMaskIntoConstraints = false | ||
| button.addTarget(self, action: #selector(switcherButtonTouch(_:)), for: UIControlEvents.touchUpInside) | ||
| button.setImage(originalImage, for: .normal) | ||
| button.setImage(selectedImage, for: .selected) | ||
| offCenterPosition = self.bounds.height * 0.1 | ||
| onCenterPosition = self.bounds.width - (self.bounds.height * 0.9) | ||
|
|
||
| if on == true { | ||
| self.button.backgroundColor = selectedColor | ||
| } else { | ||
| self.button.backgroundColor = originalColor | ||
| } | ||
|
|
||
| if self.backgroundColor == nil { | ||
| self.backgroundColor = .white | ||
| } | ||
| initLayout() | ||
| animationSwitcherButton() | ||
| } | ||
|
|
||
| override func layoutSubviews() { | ||
| super.layoutSubviews() | ||
| self.layer.cornerRadius = self.bounds.height / 2 | ||
| self.clipsToBounds = true | ||
| button.layer.cornerRadius = button.bounds.height / 2 | ||
| } | ||
|
|
||
| private func initLayout() { | ||
| button.centerYAnchor.constraint(equalTo: self.centerYAnchor).isActive = true | ||
| buttonLeftConstraint = button.leftAnchor.constraint(equalTo: self.leftAnchor) | ||
| buttonLeftConstraint.isActive = true | ||
| button.heightAnchor.constraint(equalTo: self.heightAnchor, multiplier: 0.8).isActive = true | ||
| button.widthAnchor.constraint(equalTo: button.heightAnchor, multiplier: 1).isActive = true | ||
| } | ||
|
|
||
| func setImages(onImage:UIImage? , offImage :UIImage?) { | ||
| button.setImage(offImage, for: .normal) | ||
| button.setImage(onImage, for: .selected) | ||
| } | ||
|
|
||
| required init?(coder aDecoder: NSCoder) { | ||
| super.init(coder: aDecoder) | ||
| } | ||
|
|
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| func switcherButtonTouch(_ sender: AnyObject) { | ||
| on = !on | ||
| animationSwitcherButton() | ||
| delegate?.switcherDidChangeValue(switcher: self, value: on) | ||
| } | ||
|
|
||
| func animationSwitcherButton() { | ||
| if on == true { | ||
| // Rotate animation | ||
| let rotateAnimation = CABasicAnimation(keyPath: "transform.rotation") | ||
| rotateAnimation.fromValue = -CGFloat(M_PI) | ||
| rotateAnimation.toValue = 0.0 | ||
| rotateAnimation.duration = 0.45 | ||
| rotateAnimation.isCumulative = false; | ||
| self.button.layer.add(rotateAnimation, forKey: "rotate") | ||
|
|
||
| // Translation animation | ||
| UIView.animate(withDuration: 0.5, delay: 0.0, options: UIViewAnimationOptions.curveEaseInOut, animations: { () -> Void in | ||
| self.button.isSelected = true | ||
| self.buttonLeftConstraint.constant = self.onCenterPosition | ||
| self.layoutIfNeeded() | ||
| self.button.backgroundColor = self.selectedColor | ||
| }, completion: { (finish:Bool) -> Void in | ||
| self.button.layer.shadowOffset = CGSize(width: 0, height: 0.2) | ||
| self.button.layer.shadowOpacity = 0.3 | ||
| self.button.layer.shadowRadius = self.offCenterPosition | ||
| self.button.layer.cornerRadius = self.button.frame.height / 2 | ||
| self.button.layer.shadowPath = UIBezierPath(roundedRect: self.button.layer.bounds, cornerRadius: self.button.frame.height / 2).cgPath | ||
| }) | ||
| } else { | ||
| // Clear Shadow | ||
| self.button.layer.shadowOffset = CGSize.zero | ||
| self.button.layer.shadowOpacity = 0 | ||
| self.button.layer.shadowRadius = self.button.frame.height / 2 | ||
| self.button.layer.cornerRadius = self.button.frame.height / 2 | ||
| self.button.layer.shadowPath = nil | ||
|
|
||
| // Rotate animation | ||
| let rotateAnimation = CABasicAnimation(keyPath: "transform.rotation") | ||
| rotateAnimation.fromValue = 0.0 | ||
| rotateAnimation.toValue = -CGFloat(M_PI) | ||
| rotateAnimation.duration = 0.45 | ||
| rotateAnimation.isCumulative = false; | ||
| self.button.layer.add(rotateAnimation, forKey: "rotate") | ||
|
|
||
| UIView.animate(withDuration: 0.5, delay: 0.0, options: UIViewAnimationOptions.curveEaseInOut, animations: { () -> Void in | ||
| self.button.isSelected = false | ||
| self.buttonLeftConstraint.constant = self.offCenterPosition | ||
| self.layoutIfNeeded() | ||
| self.button.backgroundColor = self.originalColor | ||
| }, completion: { (finish:Bool) -> Void in | ||
| }) | ||
| } | ||
| } | ||
| } |