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//
// ScaledSegmentedControl.swift
// MullvadVPN
//
// Created by Mojgan on 2025-07-02.
// Copyright © 2025 Mullvad VPN AB. All rights reserved.
//
import UIKit
final class ScaledSegmentedControl: UISegmentedControl {
private let textStyle: UIFont.TextStyle
private let fontWeight: UIFont.Weight
init(textStyle: UIFont.TextStyle = .body, weight: UIFont.Weight = .regular) {
self.textStyle = textStyle
self.fontWeight = weight
super.init(frame: .zero)
applyTextAttributes()
subscribeToDynamicType()
}
required init?(coder: NSCoder) {
self.textStyle = .body
self.fontWeight = .regular
super.init(coder: coder)
applyTextAttributes()
subscribeToDynamicType()
}
override func insertSegment(withTitle title: String?, at segment: Int, animated: Bool) {
super.insertSegment(withTitle: title, at: segment, animated: animated)
applyTextAttributes()
}
private func applyTextAttributes() {
let font = UIFont.preferredFont(forTextStyle: textStyle).withWeight(fontWeight)
let attributes: [NSAttributedString.Key: Any] = [
.font: font,
.foregroundColor: UIColor.primaryTextColor,
]
setTitleTextAttributes(attributes, for: .normal)
setTitleTextAttributes(attributes, for: .selected)
}
private func subscribeToDynamicType() {
NotificationCenter.default.addObserver(
self,
selector: #selector(contentSizeChanged),
name: UIContentSizeCategory.didChangeNotification,
object: nil
)
}
@objc private func contentSizeChanged() {
applyTextAttributes()
}
deinit {
NotificationCenter.default.removeObserver(self)
}
}
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