set navigationBar background image in swift - uinavigationbar

Question

Code below is not working for me, can anyone help to figure it out what is wrong?
var image = UIImage(named: "10384605_10152519403846670_5189785375955620548_n.jpg") as UIImage
self.navigationController.navigationBar.setBackgroundImage(image , forBarMetrics:UIBarMetrics)

Answer 1

self.navigationController.navigationBar.setBackgroundImage(image,
forBarMetrics: .Default)

Answer 2

In AppDelegate.swift
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
// Override point for customization after application launch.
//Image Background Navigation Bar
let navBackgroundImage:UIImage! = UIImage(named: "backgroundNB.png")
UINavigationBar.appearance().setBackgroundImage(navBackgroundImage, forBarMetrics: .Default)
return true
}

Answer 3

In Swift 3:
If you want to add a repeating image in the background you can make this call in AppDelegate > didFinishLaunchingWithOptions:
let image = UIImage(named: "imageNameInAsset")
UINavigationBar.appearance().setBackgroundImage(image, for: .default)
If you want to add an image to the center of the navigation bar you need to do this in the ViewController > viewWillAppear:
let titleView = UIImageView(image: UIImage(named: "imageNameInAsset"))
self.navigationItem.titleView = titleView

Answer 4

If you want to fill the image in navigation bar just use the code:
self.navigationController?.navigationBar.setBackgroundImage(UIImage(named: "your_Background_Image_Name")?.resizableImage(withCapInsets: UIEdgeInsets.zero, resizingMode: .stretch), for: .default)

Answer 5

let navBackgroundImage:UIImage! = UIImage(named: "navbar_bg")
[UINavigationBar .appearance().setBackgroundImage(navBackgroundImage, forBarMetrics:.Default)]

Answer 6

For Swift 3:
In AppDelegate.swift:
UINavigationBar.appearance().setBackgroundImage(UIImage(named:"pattern.png"),
for: .default)
OR
In viewDidLoad():
self.navigationController?.navigationBar.setBackgroundImage(UIImage(named:"pattern.png"),
for: .default)

Answer 7

set backgroundImage in Navigation controller
self.navigationController?.navigationBar .setBackgroundImage(UIImage(named: "cricket"), for: .default)

Answer 8

if You put the navigation bar hidden for the application you have to show it on view did load or appear by :
override func viewWillAppear(_ animated: Bool) {
print("\n Debugger : View will appear called")
self.navigationController?.isNavigationBarHidden = false
}
if you want your navigation bar only show in a specific view controller you have to disappear the navigation bar by :
override func viewDidDisappear(_ animated: Bool) {
print("\n Debugger : View did disapper called")
self.navigationController?.isNavigationBarHidden = true
}
Navigation bar setup Method
private func navigationBarSetup(){
print("\n Debugger : Navigation Bar setup method called")
self.navigationController!.navigationBar.setBackgroundImage(UIImage(named: "your image name "), for: .default)
let backButton = UIBarButtonItem(image: UIImage(named: "your Image name"), style: .plain, target: self, action: #selector(Your selector method))
backButton.tintColor = UIColor.white
self.navigationItem.leftBarButtonItem = backButton
let rightButton = UIBarButtonItem(image: UIImage(named: "your Image name"), style: .plain, target: self, action: #selector(Your selector method))
backButton.tintColor = UIColor.white
self.navigationItem.rightBarButtonItem = rightButton
}

Answer 9

Add the following code to didFinishLaunchingWithOptions method in AppDelegate.swift:
if let myImage = UIImage(named: "navBarImage.jpg"){
UINavigationBar.appearance().setBackgroundImage(myImage, for: .default)
}

Answer 10

#benLIVE asked for how to do a back button, which I was doing when I found the accepted answer, so I thought I'd leave this here too (if a bit late) b/c if you are going to replace a nav bar icon, you may as well replace all of them!
let cubeIcon = UIImageView(image: yourImage)
cubeIcon.contentMode = .scaleAspectFit
self.navigationItem.backBarButtonItem?.image = cubeIcon.image