In Info.plist set 'View controller-based status bar appearance' as NO
In AppDelegate add
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];
}
Reference :
http://stackoverflow.com/questions/17678881/how-to-change-status-bar-text-color-in-ios-7