I only want to show a large title .
My ViewController.swift
look like:
import UIKit
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
self.view.backgroundColor = UIColor.white
title = "Hello world"
self.navigationController?.navigationBar.prefersLargeTitles = true
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
}
But it doesn't work.
let navigationBar = UINavigationBar(frame: CGRect(x: 0, y: 0, width: self.view.frame.size.width, height: 60))
navigationBar.backgroundColor = UIColor(red: 46.0/255.0, green: 145.0/255.0, blue: 245.0/255.0, alpha: 1.0)
self.navigationItem.title = "Add Title"
self.view .addSubview(navigationBar)
if #available(iOS 11.0, *) {
self.navigationController?.navigationBar.prefersLargeTitles = true
self.navigationItem.largeTitleDisplayMode = .always
} else {
// Fallback on earlier versions
}
to show large title in navigationbar you need to make largeTitleDisplayMode
.always
add below lines of code into your viewDidLoad
also don't forget to check ios11 or not
title = "Hello world"
if #available(iOS 11.0, *) {
self.navigationController?.navigationBar.prefersLargeTitles = true
self.navigationItem.largeTitleDisplayMode = .always
}
and your UIViewController
should have a UINavigationController
If your UIViewController not embed in UINavigationController do the following steps
Open your storyboard -> select your view controller -> Editor -> Embed In -> NavigationController
Firstly, ensure your ViewController
is inside a UINavigationController
.
Proceed to check for IOS 11
title = "Title
if #available(iOS 11.0, *) {
self.navigationController?.navigationBar.prefersLargeTitles = true
self.navigationItem.largeTitleDisplayMode = .always
} else { ... }
Your problem is, you need to add your viewcontroller in a navigation controller
window = UIWindow(frame: UIScreen.main.bounds)
let mainController = ViewController()
let navigationController = UINavigationController(rootViewController: mainController)
self.window?.rootViewController = navigationController
self.window?.makeKeyAndVisible()
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.