How to add UIView over navigation bar?

Question

I need overlay UINavigationBar with UIView like here

Answer 1

You can add a subview to the base view of the Application

[[[UIApplication sharedApplication] keyWindow] addSubview:vMyCustomUIView];

To make sure it is only shown when your view controller is visible you could add and remove it in the viewDidAppear and viewDidDisappear delegate methods. Here is an example that would show a blue box overlapping them.

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view from its nib.    
    vTestView = [[UIView alloc] initWithFrame:CGRectMake(10.0f,
                                                         10.0f,
                                                        100.0f,
                                                        100.0f)];
    vTestView.backgroundColor = [UIColor blueColor];
}


-(void)viewDidAppear:(BOOL)animated
{
    [[[UIApplication sharedApplication] keyWindow] addSubview:vMyCustomUIView];
}
-(void)viewDidDisappear:(BOOL)animated
{
    [vMyCustomUIView removeFromSuperview];
}