Answers for "add back button to navigation bar programmatically swift"

add navigation bar button swiftui

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

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

show back button in navbar swift

let backButton = UIBarButtonItem()
 backButton.title = "New Back Button Text"
 self.navigationController?.navigationBar.topItem?.backBarButtonItem = backButton