ios - 如何更改全局导航栏背景颜色？

Question

我想更改导航栏的全局背景颜色。我怎样才能做到这一点？

行:

UINavigationBar.appearance().backgroundColor = UIColor.green

在 application(_:, didFinishLaunchingWithOptions:)不起作用，同时:

UINavigationBar.appearance().tintColor = UIColor.red

工作正常。

Answer 1

在这种情况下使用色调颜色:

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
    UINavigationBar.appearance().barTintColor = UIColor.green
    UINavigationBar.appearance().tintColor = UIColor.white
    UINavigationBar.appearance().titleTextAttributes = [NSAttributedStringKey.foregroundColor:UIColor.white]

    return true
}

iOS applies tint color to app icons, tab bars, navigation bars and many other things.