How to indent top in UINavigationController with custom TabBar?

Question

Cocoa Touch

There is a NavigationController class: UINavigationController. Instead of the standard UINavigationBar, I place my view with a height of 75. How can I make the necessary indent from above in topViewController? Tried doing it in the willShowViewController delegate method - the position doesn't change at all.

//
//  NavigationController.swift
//

import UIKit

class NavigationController: UINavigationController, UINavigationControllerDelegate {

    override init(rootViewController: UIViewController) {
        super.init(rootViewController: rootViewController)
        navigationBarHidden = true
        interactivePopGestureRecognizer?.delegate = nil
        self.delegate = self
        addNavigationView()
    }

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
    }

    override init(nibName nibNameOrNil: String?, bundle nibBundleOrNil: NSBundle?) {
        super.init(nibName: nibNameOrNil, bundle: nibBundleOrNil)
    }

    func addNavigationView() {
        let navigationView = UIView(x: 0, y: 0, w: view.w, h: 75)
        navigationView.backgroundColor = UIColor.blueColor()
        view.addSubview(navigationView)
    }

    // MARK: Delegate 

    func navigationController(navigationController: UINavigationController, willShowViewController viewController: UIViewController, animated: Bool) {
        viewController.view.y = 75;
    }

    func navigationController(navigationController: UINavigationController, didShowViewController viewController: UIViewController, animated: Bool) {

    }

}

Answer 1

What's the indent? From what? From the top? What view do you need to move? I did not understand anything in the question, what is this code? Take it to didload and move what you need, you started to get smart here.