在Swift中改变导航条的颜色

我正在使用一个选择器视图，允许用户为整个应用程序选择颜色主题。

我计划改变导航栏的颜色，背景和可能的标签栏(如果可能的话)。

我一直在研究如何做到这一点，但找不到任何Swift的例子。谁能给我一个代码的例子，我需要用来改变导航栏的颜色和导航栏的文本颜色?

选取器视图已经设置好，我正在寻找更改UI颜色的代码。

当前回答

我必须这么做

UINavigationBar.appearance().tintColor = UIColor.whiteColor()
UINavigationBar.appearance().barStyle = .Black
UINavigationBar.appearance().backgroundColor = UIColor.blueColor()

否则背景颜色不会改变

2016-10-20 10:30:30

其他回答

简单地调用这个扩展和传递的颜色，它会自动改变导航栏的颜色

extension UINavigationController {
    
     func setNavigationBarColor(color : UIColor){
            self.navigationBar.barTintColor = color
        }
    }

在视图中didload或在视图中将出现call

self.navigationController?.setNavigationBarColor(color: <#T##UIColor#>)

2019-10-29 07:08:10

Swift 5 (iOS 14)

全导航栏定制。

// -----------------------------------------------------------
// NAVIGATION BAR CUSTOMIZATION
// -----------------------------------------------------------
self.navigationController?.navigationBar.prefersLargeTitles = true
self.navigationController?.navigationBar.tintColor = UIColor.white
self.navigationController?.navigationBar.isTranslucent = false

if #available(iOS 13.0, *) {
    let appearance = UINavigationBarAppearance()
    appearance.configureWithDefaultBackground()
    appearance.backgroundColor = UIColor.blue
    appearance.largeTitleTextAttributes = [NSAttributedString.Key.foregroundColor: UIColor.white]
    appearance.titleTextAttributes = [NSAttributedString.Key.foregroundColor: UIColor.white]

    navigationController?.navigationBar.standardAppearance = appearance
    navigationController?.navigationBar.scrollEdgeAppearance = appearance
    navigationController?.navigationBar.compactAppearance = appearance

} else {
    self.navigationController?.navigationBar.barTintColor = UIColor.blue
    self.navigationController?.navigationBar.largeTitleTextAttributes = [NSAttributedString.Key.foregroundColor: UIColor.white]
    self.navigationController?.navigationBar.titleTextAttributes = [NSAttributedString.Key.foregroundColor: UIColor.white]
}

// -----------------------------------------------------------
// NAVIGATION BAR SHADOW
// -----------------------------------------------------------
self.navigationController?.navigationBar.layer.masksToBounds = false
self.navigationController?.navigationBar.layer.shadowColor = UIColor.black.cgColor
self.navigationController?.navigationBar.layer.shadowOffset = CGSize(width: 0, height: 2)
self.navigationController?.navigationBar.layer.shadowRadius = 15
self.navigationController?.navigationBar.layer.shadowOpacity = 0.7

2020-09-22 08:29:55

斯威夫特3

你可以在ViewDidLoad()中使用简单的一行代码

//Change Color
    self.navigationController?.navigationBar.barTintColor = UIColor.red
//Change Text Color
    self.navigationController?.navigationBar.titleTextAttributes = [NSForegroundColorAttributeName: UIColor.white]

2017-07-21 07:50:44

这里有一些非常基本的外观定制，你可以应用于整个应用程序:

UINavigationBar.appearance().backgroundColor = UIColor.greenColor()
UIBarButtonItem.appearance().tintColor = UIColor.magentaColor()
//Since iOS 7.0 UITextAttributeTextColor was replaced by NSForegroundColorAttributeName
UINavigationBar.appearance().titleTextAttributes = [UITextAttributeTextColor: UIColor.blueColor()]
UITabBar.appearance().backgroundColor = UIColor.yellowColor();

斯威夫特5.4.2:

UINavigationBar.appearance().backgroundColor = .green // backgorund color with gradient
// or
UINavigationBar.appearance().barTintColor = .green  // solid color
    
UIBarButtonItem.appearance().tintColor = .magenta
UINavigationBar.appearance().titleTextAttributes = [NSAttributedString.Key.foregroundColor : UIColor.blue]
UITabBar.appearance().barTintColor = .yellow

更多关于UIAppearance API在Swift你可以阅读这里。

2014-07-10 22:56:58

UINavigationBar.appearance().barTintColor

为我工作

2014-07-24 06:14:57

在Swift中改变导航条的颜色

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