Question

在swift 3开发时，我习惯写：

UINavigationBar.appearance().titleTextAttributes = [NSForegroundColorAttributeName: UIColor.orange]

将其放入AppDelegate会改变所有UINavbars＆＃39;标题颜色为橙色。

现在我想对Swift 4和iOS 11做同样的事情。

Answer 1

您可以通过在foregroundColor上设置titleTextAttributes属性来更改UINavigationBar标题颜色。

记录在案here：

titleTextAttributes属性指定的属性显示栏的标题文字。你可以指定字体，文字颜色，文本阴影颜色和文本中标题的文本阴影偏移量使用font，foregroundColor和shadow的属性字典钥匙，分别。

所以你这样做会有同样的效果：

UINavigationBar.appearance().titleTextAttributes = [NSAttributedStringKey.foregroundColor.rawValue: UIColor.orange]

Answer 2

Swift 4.1更改导航栏标题颜色

    if #available(iOS 11.0, *) {
        //To change iOS 11 navigationBar largeTitle color

        UINavigationBar.appearance().prefersLargeTitles = true
        UINavigationBar.appearance().largeTitleTextAttributes = [NSAttributedStringKey.foregroundColor: UIColor.white]
    } else {
        // for default navigation bar title color
        UINavigationBar.appearance().titleTextAttributes = [NSAttributedStringKey.foregroundColor: UIColor.white]
    }

Swift 4.2+更改导航栏标题颜色

    if #available(iOS 11.0, *) {
        //To change iOS 11 navigationBar largeTitle color

        UINavigationBar.appearance().prefersLargeTitles = true
        UINavigationBar.appearance().largeTitleTextAttributes = [NSAttributedString.Key.foregroundColor: UIColor.white]
    } else {
        // for default navigation bar title color
        UINavigationBar.appearance().titleTextAttributes = [NSAttributedString.Key.foregroundColor: UIColor.white]
    }

Answer 3

Swift 4

    UINavigationBar.appearance().titleTextAttributes = [NSAttributedStringKey(rawValue: NSAttributedStringKey.foregroundColor.rawValue): UIColor.orange]

Answer 4

您可以使用此代码更改导航栏标题的颜色

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

Answer 5

大型标题和常规标题的Swift 4实现：

extension UINavigationController {
    func setTitleForgroundTitleColor(_ color: UIColor) {
        self.navigationBar.titleTextAttributes = [NSAttributedStringKey(rawValue: NSAttributedStringKey.foregroundColor.rawValue): color]
    }

    func setLargeTitleColor(_ color: UIColor) {
        self.navigationBar.largeTitleTextAttributes = [NSAttributedStringKey(rawValue: NSAttributedStringKey.foregroundColor.rawValue): color]
    }

    func setAllTitleColor(_ color: UIColor) {
        setTitleForgroundTitleColor(color)
        setLargeTitleColor(color)
    }
}

Answer 6

应用程序代表迅捷4.2

 UINavigationBar.appearance().barTintColor = UIColor.white
 UINavigationBar.appearance().tintColor = UIColor(hex: 0xED6E19)
 UINavigationBar.appearance().titleTextAttributes = [NSAttributedString.Key.foregroundColor : UIColor(hex: 0xED6E19)]

Answer 7

Swift 4.2

fileprivate func convertToOptionalNSAttributedStringKeyDictionary(_ input: [String: Any]?) -> [NSAttributedString.Key: Any]? {
        guard let input = input else { return nil }
        return Dictionary(uniqueKeysWithValues: input.map { key, value in (NSAttributedString.Key(rawValue: key), value)})
}

用法

   // Set Navigation bar Title color

UINavigationBar.appearance().titleTextAttributes = convertToOptionalNSAttributedStringKeyDictionary([NSAttributedString.Key.foregroundColor.rawValue : UIColor.white])

Answer 8

对于Swift 5，如果有人像我一样四处张望：

self.navigationController?.navigationBar.largeTitleTextAttributes = [NSAttributedString.Key.foregroundColor : UIColor(displayP3Red: 84/255, green: 93/255, blue: 118/255, alpha: 1)]

如何在swift 4中更改NavBar标题文本颜色？

8 个答案: