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I want to change the navigation bar background colour, title font and colour programmatically in iOS 11 and swift 4 from AppDelegate. I know how to do it using Xcode but didn't find up-to-date solution for doing it programmatically.
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Changing the text color The text color of the navigation bar can be changed using two inbuilt classes: navbar-light: This class will set the color of the text to dark. This is used when using a light background color. navbar-dark: This class will set the color of the text to light.
The title color of Navigation Bar can be changed in Storyboard. Go to Attributes inspector of Navigation Controller > Navigation Bar and set the desired color in Title Color menu. Save this answer.
Here are the steps for doing it for only specific ViewControllers.
I have created a BaseViewController file which is the parent for all of my ViewControllers. And the following code as been added to the viewDidLoad() of the BaseViewController.
For changing the Navigation bar's background color
self.navigationController?.navigationBar.barTintColor = UIColor.white
For changing Navigation bar's title and Bar button colors
self.navigationController?.navigationBar.tintColor = UIColor.black
For changing font
self.navigationController?.navigationBar.titleTextAttributes = [NSAttributedStringKey.foregroundColor:UIColor.red, NSAttributedStringKey.font : UIFont.sourceSansPro(ofSize: 18.0), NSAttributedStringKey.kern:1.5]
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