Helper methods for quickly setting up a fully transparent navigation bar with black/white status bar text (use in viewWillAppear)

EasyTransparentNavigationBar.swift

import UIKit

extension UIViewController {
    func setupTransparentNavigationBarWithBlackText() {
        setupTransparentNavigationBar()
        navigationController?.navigationBar.barStyle = .default
        navigationController?.navigationBar.tintColor = .black
    }
    
    func setupTransparentNavigationBarWithWhiteText() {
        setupTransparentNavigationBar()
        navigationController?.navigationBar.barStyle = .blackTranslucent
        navigationController?.navigationBar.tintColor = .white
    }
    
    func setupTransparentNavigationBar() {
        navigationController?.navigationBar.setBackgroundImage(UIImage(), for: .default)
        navigationController?.navigationBar.shadowImage = UIImage()
        navigationController?.navigationBar.backgroundColor = .clear
        navigationController?.navigationBar.isTranslucent = true
    }
}