CocoaHeads SKG #5 - Introduction to tvOS

The awesome @ipavelas makes a sweet introduction to tvOS

Transcript

1. Intro to tvOS
   have they finally cracked it?
   @iPavleas
   

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2. What is it?
   Apps on TV
   Derived from iOS
   New frameworks TVML, TVJS
   Storage limitations
   New UX (Indirect input)
   

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3. Frameworks
   Accelerate
   AudioToolbox
   AudioUnit
   AVFoundation
   AVKit
   CFNetwork
   CloudKit
   CoreBluetooth
   CoreData
   CoreFoundation
   CoreGraphics
   CoreImage
   CoreLocation
   CoreMedia
   CoreSpotlight
   CoreText
   CoreVideo
   Darwin
   Foundation
   GameController
   GameKit
   GameplayKit
   GLKi
   ImageIO
   MachO
   MapKit
   MediaAccessibility
   MediaPlayer
   MediaToolbox
   Metal
   MetalKit
   MetalPerformanceShaders
   MobileCoreServices
   ModelIO
   OpenGLES
   SceneKit
   Security
   simd
   SpriteKit
   StoreKit
   Swift Standard Library
   SystemConfiguration
   UIKit
   

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4. No Photos
   No AddressBook
   No Contacts
   No MessageUI
   No ReplayKit
   No HomeKit
   

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5. No WebKit
   

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6. TVML
   XML, HTML like
   Templates (formTemplate, menuBarTemplate)
   Elements (title, img, button)
   

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10. TVJS
    JavaScript
    Standard DOM classes + EventListenerObject, Keyboard, NavigationDocument etc
    Can exist on a server
    Can bridge native code with JavaScript Core
    

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12. TVML vs Native
    Slower
    Less customisable
    Updates without app review
    Stock apps look like TVML
    

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13. NSUserDefaults (limited to 500KB)
    iCloud Key Value Storage (1MB per user, 1024 keys)
    CloudKit
    Own server
    Limited Persistent (local) Storage
    

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14. tvOS app bundle < 200MB
    

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15. New UX - Siri Remote
    “creates a unique, intimate connection with onscreen content”
    Focus
    Parallax images
    Gestures
    

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16. Focus Engine
    UIFocusEnvironment protocol
    UIView, UIViewController, UIWindow, UIPresentationController
    prefferedFocusView
    

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18. Focus Engine
    Swipe to move focus: left, right, up, down
    Internal picture of app’s UI
    should/
    didUpdateFocusInContext
    setNeedsFocusUpdate
    

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19. Focus Engine
    UIFocusGuide
    bottomAnchor, leftAnchor
    etc
    

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20. Gestures
    UITapGestureRecognizer:
    numberOfTaps, allowedPressTypes
    UILongPressGestureRecognizer:
    UISwipeGestureRecognizer:
    UIPanGestureRecognizer:
    

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21. No MultiTouch
    

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23. Existing Projects
    Standalone binary
    Universal purchase
    Share code with existing iOS apps
    Add new target
    New storyboards (1920x1080, scale 1x)
    TestFlight
    

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24. Thank you!
    

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