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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| // | ||
| // RangeSegmentedControl.swift | ||
| // Bank | ||
| // | ||
| // Created by Ayden Panhuyzen on 2017-12-04. | ||
| // Copyright © 2017 Ayden Panhuyzen. All rights reserved. | ||
| // | ||
|
|
||
| import UIKit | ||
|
|
||
| class RangeSegmentedControl: UISegmentedControl { | ||
| private var selectionView: UIView!, selectionViewLeftAnchor: NSLayoutConstraint!, selectionViewWidthAnchor: NSLayoutConstraint! | ||
|
|
||
| override init(frame: CGRect) { | ||
| super.init(frame: frame) | ||
| setup() | ||
| } | ||
|
|
||
| required init?(coder aDecoder: NSCoder) { | ||
| super.init(coder: aDecoder) | ||
| setup() | ||
| } | ||
|
|
||
| private func setup() { | ||
| heightAnchor.constraint(equalToConstant: 34).isActive = true | ||
| selectionView = UIView() | ||
| selectionView.translatesAutoresizingMaskIntoConstraints = false | ||
| addSubview(selectionView) | ||
| selectionView.heightAnchor.constraint(equalToConstant: 2).isActive = true | ||
| selectionViewLeftAnchor = selectionView.leftAnchor.constraint(equalTo: leftAnchor) | ||
| selectionViewLeftAnchor.isActive = true | ||
| selectionView.bottomAnchor.constraint(equalTo: bottomAnchor).isActive = true | ||
| selectionViewWidthAnchor = selectionView.widthAnchor.constraint(equalToConstant: 0) | ||
| selectionViewWidthAnchor.isActive = true | ||
| setColours() | ||
| addTarget(self, action: #selector(didChangeIndex), for: .valueChanged) | ||
| } | ||
|
|
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| override func tintColorDidChange() { | ||
| super.tintColorDidChange() | ||
| setColours() | ||
| } | ||
|
|
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| override func layoutSubviews() { | ||
| super.layoutSubviews() | ||
| moveSelectionView() | ||
| } | ||
|
|
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| @objc func didChangeIndex() { | ||
| self.moveSelectionView(animated: true) | ||
| } | ||
|
|
||
| var isAnimating = false | ||
| private func moveSelectionView(animated: Bool = false, overrideAnimationState: Bool = false) { | ||
| if isAnimating && !overrideAnimationState { return } | ||
| if animated { | ||
| isAnimating = true | ||
| UIView.animate(withDuration: 0.25, delay: 0, usingSpringWithDamping: 0.85, initialSpringVelocity: 1, options: [], animations: { | ||
| self.moveSelectionView(animated: false, overrideAnimationState: true) | ||
| }, completion: { _ in self.isAnimating = false }) | ||
| return | ||
| } | ||
| selectionViewWidthAnchor.constant = bounds.size.width / CGFloat(numberOfSegments) | ||
| selectionViewLeftAnchor.constant = selectionViewWidthAnchor.constant * CGFloat(selectedSegmentIndex) | ||
| layoutIfNeeded() | ||
| } | ||
|
|
||
| private func setColours() { | ||
| tintColor = .clear | ||
| setTitleTextAttributes([NSAttributedStringKey.foregroundColor: UIColor(white: 0.7569, alpha: 1), NSAttributedStringKey.font: UIFont.systemFont(ofSize: 15, weight: .bold)], for: .normal) | ||
| setTitleTextAttributes([NSAttributedStringKey.foregroundColor: Colours.main], for: .selected) | ||
| selectionView.backgroundColor = Colours.main | ||
| } | ||
| } |