Navigation bar and Status bar issue in iOS 7 - iphone

Question

I have created an application using XIB without Status Bar before for iOS7, now i need to add Status bar on my app and Status bar background color should same as Navigation bar background color. So i have tried like (In my info.plist) :
1) Set View controller-based status bar appearance to NO
2) Set Status bar style to UIStatusBarStyleLightContent
here is my code for App Delegate:
[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];
[[UIApplication sharedApplication] setStatusBarHidden:NO withAnimation:UIStatusBarAnimationNone];
[[UINavigationBar appearance] setBarStyle:UIBarStyleDefault];
[[UINavigationBar appearance] setBackgroundColor:[UIColor colorWithRed:(51/255.0) green:(51/255.0) blue:(51/255.0) alpha:1.0]];
[[UINavigationBar appearance] setBarTintColor:[UIColor colorWithRed:(51/255.0) green:(51/255.0) blue:(51/255.0) alpha:1.0]];
So i am getting the output like the below image :
also i am getting misplacement of UIButtons that i have given below in my screen (It's hiding 20 pixels).
Can you please help me that how can i fix this issue? I need my output like the below image :
Any help will be very appreciated, Thanks.
Third screen :

Answer 1

Add following code in your viewDidLoad method :
float systemVersion = [[[UIDevice currentDevice] systemVersion] floatValue];
if (systemVersion >= 7.0)
{
self.edgesForExtendedLayout = UIRectEdgeNone;
}

Answer 2

Please define this in AppDelegate.h (or) constants.h
#define isIOS7 ([[[UIDevice currentDevice]systemVersion]floatValue] >=7.0)?YES:NO
under viewDidLoad Write this lines.
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0) {
UIView *addStatusBar = [[UIView alloc] init];
addStatusBar.frame = CGRectMake(0, 0, 320, 20);
addStatusBar.backgroundColor = [UIColor colorWithRed:0.973 green:0.973 blue:0.973 alpha:1];
//change this to match your navigation bar
[self.window.rootViewController.view addSubview:addStatusBar];
}
OR we can change it manually in the xib.
By moving each element 20px down.

Answer 3

Surprise at how few people have suggested this. Here is the correct way (no hacking)
First, make your navigationBar have a Y origin of 20.
Then in the .h file, set your ViewController as a UIBarPositioningDelegate:
#interface XYZViewController : UIViewController <UIBarPositioningDelegate>
And in the .m file:
- (void)viewDidLoad {
[super viewDidLoad];
self.navigationBar.delegate = self;
}
- (UIBarPosition)positionForBar:(id<UIBarPositioning>)bar {
return UIBarPositionTopAttached;
}