我在SWIFT中使用自定义导航栏时遇到问题

Question

Im making an app that has a login screen and when I log in my custom navigation bar works fine and has the proper image but after i close the app and reopen the navigation bar is the default white color. Any ideas on how to fix this?

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

Answer 1

Use this code to set image for navigation bar:

let image = UIImage(named: "navbar_bg")

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