Talk at Cocoaheads Cologne 21.09.2015

1. How To Build iOS Apps Without
Interface Builder

2. But why?

3. IB vs. Code (I)
• Context shift
• More evil conflicts
• Options all over the place
• Harder to get help
• No betas for you

4. IB vs. Code (II)
• No inheritance
• Harder to DRY
• Hard to see contraints
• Really bad performance

5. Delete Storyboard

6. AppDelegate.swift
import UIKit
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
var window: UIWindow? = UIWindow(frame: UIScreen.mainScreen().bounds)
func application(application: UIApplication,
didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
window?.rootViewController = ViewController()
window?.makeKeyAndVisible()
return true
}
}

7. UINavigationController
import UIKit
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
var window: UIWindow? = UIWindow(frame: UIScreen.mainScreen().bounds)
func application(application: UIApplication,
didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
window?.rootViewController = UINavigationController(rootViewController: ViewController())
window?.makeKeyAndVisible()
return true
}
}

8. Loading The View
override func loadView() {
view = FirstView()
}

9. Demo
• Login-Screen
• Auto Layout
• UIStackView
• UITableView / UITableViewCell
• UINavigationController
• UITabBarController