更改导航控制器颜色迅速

Question

我想将导航栏色调控制器颜色更改为颜色:R:73,G:155,B:255,A:0.7

直到现在,我只能将其更改为系统中的颜色.以下是代表中的示例:

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool {

    UINavigationBar.appearance().barTintColor = UIColor.blueColor()
    UINavigationBar.appearance().tintColor = UIColor.whiteColor()

    return true
}

此外,我希望能够将导航视图控制器标题颜色更改为白色!

如果可能,我想将标签栏色调颜色更改为R:73,G:155,B:255,A:0.7并将其文本更改为白色.

Answer 1

如果要设置导航栏的背景颜色:

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

注意RGB值从0.0到1.0,因此您必须将它们除以255,否则颜色将为白色.下一个色调:

UINavigationBar.appearance().tintColor = UIColor(red: 73.0 / 255.0, green: 155.0 / 255.0, blue: 255.0/ 255.0, alpha: 1.0)

然后设置标题文字:

UINavigationBar.appearance().titleTextAttributes = [NSForegroundColorAttributeName: someColor, NSFontAttributeName: someFont]

最后是条形按钮项:

UIBarButtonItem.appearance().setTitleTextAttributes([NSForegroundColorAttributeName: color, NSFontAttributeName: buttonFont], forState: UIControlState.Normal)