Swift中的UINavigationBar文本颜色

Question

我如何改变UINavigationBarSwift中的颜色？

网上的大多数事情都说要做以下事情:

[self.navigationController.navigationBar setTitleTextAttributes:@{NSForegroundColorAttributeName : [UIColor whiteColor]}];

我翻译成了哪个

let titleDict: NSDictionary = ["NSForegroundColorAttributeName": UIColor.whiteColor()]
self.navigationController.navigationBartitleTextAttributes = titleDict
//self is referring to a UIViewController

但它不起作用.我已经改变了背景和按钮颜色,但文本颜色没有改变.有任何想法吗？

Answer 1

使用NSForegroundColorAttributeName为重点,而不是"NSForegroundColorAttributeName"字符串.

let titleDict: NSDictionary = [NSForegroundColorAttributeName: UIColor.whiteColor()]
self.navigationController.navigationBar.titleTextAttributes = titleDict

Answer 2

您还可以UINavigationController在AppDelegate.swift文件中更改应用中的所有外观.只需将以下代码放在application:didFinishLaunchingWithOptions函数中:

var navigationBarAppearace = UINavigationBar.appearance()

navigationBarAppearace.tintColor = UIColor.YourNavigationButtonsColor()  // Back buttons and such
navigationBarAppearace.barTintColor = UIColor.YourBackgroundColor()  // Bar's background color

navigationBarAppearace.titleTextAttributes = [NSForegroundColorAttributeName:UIColor.YourTitleColor()]  // Title's text color

信用:Coderwall的博客文章

Answer 3

Swift 3+

self.navigationController?.navigationBar.titleTextAttributes = [NSForegroundColorAttributeName : UIColor.white]

Swift 4.0

self.navigationController?.navigationBar.titleTextAttributes = [NSAttributedStringKey.foregroundColor : UIColor.white]

Answer 4

Swift 2.0

self.navigationController!.navigationBar.titleTextAttributes = [NSForegroundColorAttributeName : UIColor.whiteColor()]