You have added NavigationBar from the controls to your ViewController ie the reason it is looking like this.
To solve the problem remove that NaviagtionBar from your controller and embed the NavigationController to embed to NavigationController follow this steps.
- Select Your ViewController. 
- Go to the "Editor" menu and select "Embed in" inside that select "Navigation Controller". So it should like - Editor->Embed In->Navigation Controller.
 
Edit: To change the color and title pragmatically add below code in viewDidLoad.
navigationController.navigationBar.barTintColor = [UIColor redColor];//Set your color
//To set title
self.navigationItem.title = @"YourTitle";