If your iOS applications minimum deployment target is iOS7.0 and above and if you have a dark background in your app then you can’t see the status bar text, since in iOS 7.0 and above status bar is transparent by default.
If the background of your view is black(or any dark color) then your status bar will not be visible, and looks something like below snapshot,
So here is a way to make your status bar text visible in dark background,
1) Add "View controller-based status bar appearance" property (key is UIViewControllerBasedStatusBarAppearance) to your applications info.plist and set the value to NO.
2) Go to your applications AppDelegate.m file and add the below code snippet in didFinishLaunchingWithOptions method,
[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];
If you have done with the above 2 points then you are 90% done except your status bar will not be visible during the time of splash screen display,
To make your status bar visible when splash screen is displaying with dark background, just do the below mentioned step,
3) Add "Status Bar Style" property (key is UIStatusBarStyle) to your applications info.plist and set the value to “Transparent black style (alpha of 0.5)” (key is UIStatusBarStyleLightContent).
and we are 100% done now,,, :)
Now if you run your app you can able to see status bar as shown in the below snapshot,
For more information on this refer Apple's official documentation here, https://developer.apple.com/library/ios/documentation/userexperience/conceptual/transitionguide/AppearanceCustomization.html
Hope this post is helpful,any comments or suggestions are acceptable.