[iOS, Swift] Dynamic Status Bar Style with Navigation Controller

DynamicStatusBarNavigation.swift

//
//  DynamicStatusBarNavigation.swift
//
//  Created by 홍경표 on 2021/09/09.
//

import UIKit

/// This NavigationController makes embedded viewControllers show their own `preferredStatusBarStyle`
///                                     , which cannot implemented in default `UINavigationController`.
///
public class DynamicStatusBarNavigation: UINavigationController {
    override var childForStatusBarStyle: UIViewController? {
        return topViewController
    }
}

// Usage
public class AnyWhereYouWant: UIViewController {
    public func showSomeViewController() {
        let viewController = SomeViewController()
        let navi = DynamicStatusBarNavigation(rootViewController: viewController)
        // present or whatever
    }
}
// In ViewController which embedded in DynamicStatusBarNavigation
public class SomeViewController: UIViewController {
    public override var preferredStatusBarStyle: UIStatusBarStyle {
        return .lightContent // Makes statusBar white
    }
    ...
}