iOS 11 New Navigation Bar and Search Controller

As we all know the apple is bringing all the new changes in iOS every year, they are improving the the UIKit for the better User Interface for iOS. Today we will see 2 new changes of UIKit in iOS 11. Navigation Bar Controller A navigation bar appears at the top of an app screen, below the status bar, and enables navigation through a series of hierarchical screens. When a new screen is displayed the back button appear with the label of previous screen title on the left side of the screen. We can also add button on the right