更改iOS导航栏的颜色

问题描述：

我正在尝试更改导航器栏的颜色，但是我发现只有导航器是根导航器，这才是不可能的.

I'm trying to change the color of my navigator bar but I found that it's only impossible if the navigator is the root one.

我正在尝试:

self.navigationController?.navigationBar.translucent = true

self.navigationController!.navigationBar.barTintColor = UIColor.blueColor()

我的所有Viewcontrollers与导航器控制器有关.但是什么都没有改变.实际上，我尝试从情节提要中进行相同的操作，但只有在我处于第一个导航器中时，它才有效.

All my Viewcontrollers are related to navigator controllers. However nothing is changed. In fact I tried to make the same things from storyboard but it works only if I'm in the first navigator.

我试图阅读与此问题相关的所有内容，但未找到任何内容

I tried to read everything related to this problem but found nothing

我可以将任何项目添加到导航器栏中

I could add any item to the navigator bar like this

let HomeImage = UIImage(named: "home")!
    let Home : UIBarButtonItem = UIBarButtonItem(image: HomeImage,  style: .Plain, target: self, action: "home:")
    navigationItem.rightBarButtonItem = Home

答

事实上，我发现该解决方案要在AppDelegate.siwft中使用:

In fact, i found that the solution was to use in the AppDelegate.siwft :

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
    // Override point for customization after application launch.
    UINavigationBar.appearance().barTintColor = UIColor(red: 0, green: 0/255, blue: 205/255, alpha: 1)
    UINavigationBar.appearance().tintColor = UIColor.whiteColor()
    UINavigationBar.appearance().titleTextAttributes = [NSForegroundColorAttributeName:UIColor.whiteColor()]

    return true
}

然后在每个视图控制器中，我们需要另一种背景色或其他颜色

and then in each view controller, that we need another background color or something else

segue应该不同于"show"

the segue should be different than "show"

使用func viewWillAppear

 override func viewWillAppear(animated: Bool) {
     super.viewWillAppear(animated)
     self.navigationController?.navigationBar.barTintColor = UIColor.whiteColor()
     self.navigationController?.navigationBar.tintColor = UIColor.blueColor()
     self.navigationController!.navigationBar.titleTextAttributes = [NSForegroundColorAttributeName: UIColor.blueColor()]
}

相关推荐