在Swift 2中

在导航栏中更改颜色，

navigationController?.navigationBar.barTintColor = UIColor.whiteColor()

在项目导航栏中更改颜色，

navigationController?.navigationBar.tintColor = UIColor.blueColor()

or

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

我在iOS 16.1的Xcode 14.1中工作

我必须改变scrollEdgeAppearance来改变导航条的颜色。即使我禁用了半透明属性，背景色也只是真正半透明的颜色。

事情是这样的:

navigationController?.navigationBar.scrollEdgeAppearance = UIColor.*/your_color/*

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

使用外观API和barTintColor颜色。

UINavigationBar.appearance().barTintColor = UIColor.greenColor()

在Swift 2中

在导航栏中更改颜色，

navigationController?.navigationBar.barTintColor = UIColor.whiteColor()

在项目导航栏中更改颜色，

navigationController?.navigationBar.tintColor = UIColor.blueColor()

or

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

在故事板上执行此操作(接口构建器检查器)

在IBDesignable的帮助下，我们可以为UINavigationController添加更多的界面生成器检查器选项，并在故事板上调整它们。首先，将以下代码添加到项目中。

@IBDesignable extension UINavigationController {
    @IBInspectable var barTintColor: UIColor? {
        set {
            guard let uiColor = newValue else { return }
            navigationBar.barTintColor = uiColor
        }
        get {
            guard let color = navigationBar.barTintColor else { return nil }
            return color
        }
    }
}

然后在storyboard上简单地设置导航控制器的属性。

这个方法也可以用于管理故事板中导航栏文本的颜色:

@IBInspectable var barTextColor: UIColor? {
  set {
    guard let uiColor = newValue else {return}
    navigationBar.titleTextAttributes = [NSAttributedStringKey.foregroundColor: uiColor]
  }
  get {
    guard let textAttributes = navigationBar.titleTextAttributes else { return nil }
    return textAttributes[NSAttributedStringKey.foregroundColor] as? UIColor
  }
}