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Transcript

1. ! TRY! SWIFT, MARCH 2016 BORIS BÜGLING - @NEONACHO

2. None

3. COCOAPODS

4. CONTENTFUL

5. None

6. “‘I’d like to create an integrated television set that is

   completely easy to use,’ he told me. [...] ‘It will have the simplest user interface you could imagine. I finally cracked it.’”

7. OCTOBER 21, 2011

8. SEPTEMBER 9, 2015

9. None
10. None

11. The future of TV is iOS

12. 1 1 https://twitter.com/davidolesch/status/656126103921160192

13. WEBKIT

14. MULTIPEERCONNECTIVITY

15. STORAGE LIMITATIONS ▸ app is limited to 200 MB ▸

    500 KB of persistent storage (NSUserDefaults) ▸ Use iCloud ▸ Use On-Demand resources

16. PORTING EXISTING APPS

17. COCOAPODS ▸ Supports tvOS since 0.39.0 ▸ New platform: platform

    :tvos, '9.0'

18. PODS NOT SUPPORTING TVOS If you are adventurous ! https://github.com/orta/cocoapods-expert-difficulty

19. SPRITEKIT EXAMPLE

20. None

21. DOOM CLASSIC ▸ UIKit changes (UIAlertView, UISlider) ▸ AudioSession isn't

    available ▸ Newer C++ compiler

22. NIBS ! If you don't feel like copy-pasting stuff between

    NIBs ! https://github.com/neonichu/bohne

23. NO DIRECT MANIPULATION

24. FOCUS ENGINE UIButton().canBecomeFocused() // == true or false UIButton().focused //

    == true or false UIScreen.mainScreen().focusedView // nil or the view in focus

25. DEMO

26. REACTING TO FOCUS CHANGES func didUpdateFocusInContext(context: UIFocusUpdateContext, withAnimationCoordinator coordinator: UIFocusAnimationCoordinator)

    context.nextFocusedView // the view which gets the focus context.previouslyFocusedView // the view which had the focus func addCoordinatedAnimations(_ animations: (() -> Void)?, completion completion: (() -> Void)?)

27. CUSTOMFOCUSVIEW class CustomFocusView: UIView { override func canBecomeFocused() -> Bool

    { return true } }

28. CUSTOMFOCUSVIEW override func didUpdateFocusInContext(context: UIFocusUpdateContext, withAnimationCoordinator coordinator: UIFocusAnimationCoordinator) { coordinator.addCoordinatedAnimations({

    // ... }, completion: nil) }

29. CUSTOMFOCUSVIEW let duration = UIView.inheritedAnimationDuration() UIView.animateWithDuration(duration, animations: { if context.nextFocusedView

    == self { self.backgroundColor = UIColor.redColor() } if context.previouslyFocusedView == self { self.backgroundColor = UIColor.whiteColor() } })

30. DEBUGGING FOCUS print(view.performSelector("_whyIsThisViewNotFocusable")) e.g. for a UILabel Unmanaged<AnyObject>(_value: ISSUE: This

    view has userInteractionEnabled set to NO. Views must allow user interaction to be focusable. ISSUE: This view returns NO from -canBecomeFocused. )

31. GOOD PLACES FOR BREAKPOINTS func shouldUpdateFocusInContext(_ context: UIFocusUpdateContext) -> Bool

    func didUpdateFocusInContext(_ context: UIFocusUpdateContext, withAnimationCoordinator coordinator: UIFocusAnimationCoordinator)

32. GESTURES AND BUTTON PRESSES let tapRecognizer = UITapGestureRecognizer(target: self, action:

    "tapped:") let pressTypes = [NSNumber(integer: UIPressType.PlayPause.rawValue)] tapRecognizer.allowedPressTypes = pressTypes; self.view.addGestureRecognizer(tapRecognizer) let swipeRecognizer = UISwipeGestureRecognizer(target: self, action: "swiped:") swipeRecognizer.direction = .Right self.view.addGestureRecognizer(swipeRecognizer)

33. LOWER-LEVEL API: UIPress Very similar to UITouch-based API in iOS

    func pressesBegan(presses: Set<UIPress>, withEvent event: UIPressesEvent?) func pressesEnded(presses: Set<UIPress>, withEvent event: UIPressesEvent?) func pressesChanged(presses: Set<UIPress>, withEvent event: UIPressesEvent?) func pressesCancelled(presses: Set<UIPress>, withEvent event: UIPressesEvent?)

34. TEXT INPUT

35. SIRI?

36. HANDOFF IS ALSO NOT SUPPORTED

37. https://github.com/rsattar/Voucher

38. GAME CONTROLLERS

39. None

40. SIRI REMOTE IS ALSO A GAME CONTROLLER ▸ Profile GCMicroGamepad

    ▸ Touch surface is a dpad ▸ Two action buttons ▸ Motion (GCMotion) ▸ Seems not to work in the simulator

41. NSNotificationCenter.defaultCenter().addObserverForName(GCControllerDidConnectNotification, object: nil, queue: nil) { (note) in if let

    controller = note.object as? GCController { if let microPad = controller.microGamepad { microPad.dpad.valueChangedHandler = { (_, x, y) in if let paddle = self.childNodeWithName("Paddle") { paddle.position.y += CGFloat(y) } } } } }

42. GAME CONTROLLERS WORK WITH UIKIT COMPONENTS

43. 2.27 If your app’s core functionality doesn’t work with the

    Siri remote it will be rejected. The app may, however, provide enhanced functionality in connection with a game controller or other peripheral
44. None

45. A maximum of two game controllers (plus one remote) can

    be connected to an Apple TV at any given time.

46. DEMO

47. TVML

48. CONCLUSION ▸ tvOS works very well ▸ If you know

    UIKit, it's easy to start ▸ Think about interaction

49. RESOURCES ▸ https://developer.apple.com/tvos/human-interface-guidelines/ ▸ "Ich glotz TV", @avbelow, Macoun 2015

    ▸ https://speakerdeck.com/toco/intro-to-tvos ▸ http://nerds.airbnb.com/tvos-focus-engine/ ▸ https://eternalstorms.wordpress.com/2015/10/05/pair-the-apple- tv-developer-kit-siri-remote-with-xcodes-simulator/

50. THANKS!

51. @NeoNacho boris@contentful.com http://buegling.com/talks