Roopesh Chander
51 lines
1.9 KiB
Swift
51 lines
1.9 KiB
Swift
// SPDX-License-Identifier: MIT
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// Copyright © 2018 WireGuard LLC. All Rights Reserved.
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import UIKit
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class ScrollableLabel: UIScrollView {
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var text: String {
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get { return label.text ?? "" }
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set(value) { label.text = value }
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}
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var textColor: UIColor {
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get { return label.textColor }
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set(value) { label.textColor = value }
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}
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private let label: UILabel
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init() {
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let label = UILabel()
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label.translatesAutoresizingMaskIntoConstraints = false
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label.textAlignment = .right
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self.label = label
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super.init(frame: CGRect.zero)
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self.isDirectionalLockEnabled = true
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self.showsHorizontalScrollIndicator = false
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self.showsVerticalScrollIndicator = false
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addSubview(label)
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label.translatesAutoresizingMaskIntoConstraints = false
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NSLayoutConstraint.activate([
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label.leftAnchor.constraint(equalTo: self.contentLayoutGuide.leftAnchor),
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label.topAnchor.constraint(equalTo: self.contentLayoutGuide.topAnchor),
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label.bottomAnchor.constraint(equalTo: self.contentLayoutGuide.bottomAnchor),
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label.rightAnchor.constraint(equalTo: self.contentLayoutGuide.rightAnchor),
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label.heightAnchor.constraint(equalTo: self.heightAnchor),
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])
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// If label has less content, it should expand to fit the scrollView,
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// so that right-alignment works in the label.
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let expandToFitValueLabelConstraint = NSLayoutConstraint(item: label, attribute: .width, relatedBy: .equal,
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toItem: self, attribute: .width, multiplier: 1, constant: 0)
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expandToFitValueLabelConstraint.priority = .defaultLow + 1
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expandToFitValueLabelConstraint.isActive = true
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}
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required init?(coder aDecoder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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}
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