UINavigationBar does not extend behind status bar - ios

Question

I feel like I'm completely overlooking something, since this is so basic.
In a completely bare bones setup:
window = UIWindow(frame: UIScreen.mainScreen().bounds)
window.backgroundColor = UIColor.whiteColor()
let rootController = MainViewController()
rootNavigationController = UINavigationController(rootViewController: rootController)
window.rootViewController = rootNavigationController;
window.makeKeyAndVisible()
// Appearance
UINavigationBar.appearance().barTintColor = UIColor.DailyRate.blueColor
UINavigationBar.appearance().titleTextAttributes = [NSForegroundColorAttributeName: UIColor.whiteColor()]
UINavigationBar.appearance().opaque = false
I get a navigation bar that does not extend behind the status, which should be default behavior.

Answer 1

I just tried and I got proper result. Please find my complete code. I can not find few things in your code(I don't get what you mean by DailyRate) , remaining things are same as your code.
var window: UIWindow?
var rootNavigationController : UINavigationController?
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
window = UIWindow(frame: UIScreen.mainScreen().bounds)
window!.backgroundColor = UIColor.whiteColor()
let rootController = ViewController()
rootNavigationController = UINavigationController(rootViewController: rootController)
window!.rootViewController = rootNavigationController;
window!.makeKeyAndVisible()
// Appearance
UINavigationBar.appearance().barTintColor = UIColor.blueColor()
UINavigationBar.appearance().titleTextAttributes = [NSForegroundColorAttributeName: UIColor.whiteColor()]
UINavigationBar.appearance().opaque = false
// Override point for customization after application launch.
return true
}
And the result is in following attachment.

Answer 2

I encountered this problem because I was removing the built-in line border at the bottom of the navigation bar, like this:
if let navigationBar = self.navigationController?.navigationBar {
navigationBar.shadowImage = UIImage()
navigationBar.setBackgroundImage(UIImage(), forBarMetrics: .Default)
navigationBar.backgroundColor = UIColor.redColor()
}
I was doing the above code inside my view controller's viewWillAppear because some of my VCs have other colors for the navigation bar and I don't want to modify the universal appearance.
The solution was to just create a 1 pt x 1 pt image with the color I want and use it instead of a new empty UIImage instance, like this:
if let navigationBar = self.navigationController?.navigationBar {
let colorImage = UIImage.imageWithColor(self.category.color)
navigationBar.shadowImage = colorImage
navigationBar.setBackgroundImage(colorImage, forBarMetrics: .Default)
navigationBar.tintColor = UIColor.whiteColor()
}
imageWithColor is a function I defined in an extension to UIImage:
class func imageWithColor(color: UIColor) -> UIImage {
let rect = CGRectMake(0, 0, 1, 1)
UIGraphicsBeginImageContext(rect.size)
let context = UIGraphicsGetCurrentContext()
CGContextSetFillColorWithColor(context, color.CGColor)
CGContextFillRect(context, rect)
let image = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return image
}

Answer 3

It turned out that it was a timing issue.
The root hierarchy was actually set up in the initializer of a separate class called UIManager. However, this class was initialized at the same time as the AppDelegate
var uiManager = UIManager()
and not in application(_, didFinishLaunchingWithOptions _) method, thus creating this weird scenario.
So all I did was
var uiManager: UIManager?
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
uiManager = UIManager()
}
And now everything is back to normal.
Thanks to #govindarao-kondala for planting the right idea in my head!