custom navigation bar swift code example

Example 1: add navigation bar button swiftui

.navigationBarItems(
    leading: Button(action: {
        // Actions
    }, label: { Text("Button") }),

    trailing: Button(action: {
    // Actions
    }, label: { Image("Icon") })
)

Example 2: swift add navigation bar

override func viewDidLoad() {
    super.viewDidLoad()
    self.setNavigationBar()
}

func setNavigationBar() {
        let screenSize: CGRect = UIScreen.main.bounds
        let navBar = UINavigationBar(frame: CGRect(x: 0, y: 0, width: screenSize.width, height: 44))
        let navItem = UINavigationItem(title: "")
        let doneItem = UIBarButtonItem(barButtonSystemItem: UIBarButtonItem.SystemItem.done, target: nil, action: #selector(dissmissView))
        navItem.rightBarButtonItem = doneItem
        navBar.setItems([navItem], animated: false)
        self.view.addSubview(navBar)
    }

@objc
    func dissmissView(){
        self.dismiss(animated: true, completion: nil)
    }

Example 3: swift add navigation bar

let navBar = UINavigationBar(frame: CGRect(x: 0, y: 0, width: view.frame.size.width, height: 44))
view.addSubview(navBar)

let navItem = UINavigationItem(title: "SomeTitle")
let doneItem = UIBarButtonItem(barButtonSystemItem: .done, target: nil, action: #selector(selectorName:))
navItem.rightBarButtonItem = doneItem

navBar.setItems([navItem], animated: false)

Example 4: adding label to navigation bar

if let navigationBar = self.navigationController?.navigationBar {
    let firstFrame = CGRect(x: 0, y: 0, width: navigationBar.frame.width/2, height: navigationBar.frame.height)
    let secondFrame = CGRect(x: navigationBar.frame.width/2, y: 0, width: navigationBar.frame.width/2, height: navigationBar.frame.height)

    let firstLabel = UILabel(frame: firstFrame)
    firstLabel.text = "First"

    let secondLabel = UILabel(frame: secondFrame)
    secondLabel.text = "Second"

    navigationBar.addSubview(firstLabel)
    navigationBar.addSubview(secondLabel)
}

Example 5: swiftui navigation button

ForEach (self.drinks, id: \.name)
{
  drink in

  //detail: The SwiftUI view you want to go to
  NavigationLink(destination: DrinkDetail(drink: drink))
  {
    //the button/image you click on to go to that view
    DrinkItem(drink: drink)
    .frame(width: 300)
    .padding(.trailing, 30)
    
    
  }

}