如何更改navigationitem标题颜色

Question

我想整天都要更改导航栏标题颜色,但它不起作用.这是我的代码:

var user: User? {
    didSet {
        navigationItem.title = user?.name

         observeMessages()
    }
}

我使用didSet在导航标题上显示标题.

Answer 1

在您的代码中添加它..

let textAttributes = [NSForegroundColorAttributeName:UIColor.red]
navigationController?.navigationBar.titleTextAttributes = textAttributes

SWIFT 4:

let textAttributes = [NSAttributedStringKey.foregroundColor:UIColor.red]
navigationController?.navigationBar.titleTextAttributes = textAttributes

SWIFT 4.2+:

let textAttributes = [NSAttributedString.Key.foregroundColor:UIColor.red]
navigationController?.navigationBar.titleTextAttributes = textAttributes

Answer 2

可以在Storyboard中更改导航栏的标题颜色.

转到导航控制器 > 导航栏的属性检查器,并在" 标题颜色"菜单中设置所需的颜色.

Answer 3

适用于 iOS 13 的解决方案

要自定义导航栏的外观，您需要使用UINavigationBarAppearance：

let appearance = UINavigationBarAppearance()
appearance.titleTextAttributes = [.foregroundColor: UIColor.red]
appearance.largeTitleTextAttributes = [.foregroundColor: UIColor.red]

navigationItem.standardAppearance = appearance
navigationItem.scrollEdgeAppearance = appearance

Answer 4

斯威夫特4

首先设置这个

navigationController?.navigationBar.barStyle = .default

那么其中之一应该工作

navigationBar.largeTitleTextAttributes = [NSAttributedStringKey.foregroundColor: UIColor.red]

要么

navigationBar.titleTextAttributes = [NSAttributedStringKey.foregroundColor: UIColor.red]

迅捷5

navigationBar.largeTitleTextAttributes = [NSAttributedString.Key.foregroundColor: UIColor.red]

要么

navigationBar.titleTextAttributes = [NSAttributedString.Key.foregroundColor: UIColor.red]

Answer 5

在目标 C 中：

[UINavigationBar appearance] setTitleTextAttributes: 
    [NSDictionary dictionaryWithObjectsAndKeys: 
        [UIColor blackColor], NSForegroundColorAttributeName, 
           [UIFont fontWithName:@"ArialMT" size:16.0], NSFontAttributeName,nil]];

Answer 6

对于 iOS 13，您必须更改外观属性中的颜色，对于较旧的 iOS 版本，您可以直接在导航栏属性中进行更改。

if #available(iOS 13.0, *) {
    navigationController?.navigationBar.standardAppearance.titleTextAttributes = [.foregroundColor: UIColor.white]
} else {
    navigationController?.navigationBar.titleTextAttributes = [.foregroundColor: UIColor.white]
}