WWDC19

Table of Contents

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• Table of Contents
• Platforms State of The Union - Monday
  • SwiftUI
  • Swift and XCode 11 updates
    • Test Plans
    • Device Conditions
    • Feedback
  • macOS Catalina
    • Project Catalyst iPad -> macOS
  • watchOS
  • iOS 13
    • Dark Mode
    • Cards
    • Symbols
  • iPadOS
    • Multitasking
    • Productivity Gestures
  • Accessibility
    • Discoverability
    • Voice Control
  • Privacy
    • Sign in with Apple
  • ML
    • CreateML
  • Siri
  • AR
    • Reality Composer
    • RealityKit
    • ARKit3
  • Metal

Platforms State of The Union - Monday

Video: https://developer.apple.com/videos/play/wwdc2019/103/

SwiftUI

A brand-new UI framework!

• Declarative
  • Writing code like declaring something in a normal sentence. One liner code pieces to define whole UI elements with fonts and colors etc.
• Automatic functionality wherever possible
  • One line of code animations
  • Transitions with offsets and simple parameters
• Compositional
  • Compose multiple smaller pieces together
• Consistent
  • Automatic data source updates anytime the data changes
  • Mutable states with @State to apply to variables
• Live development experience
• Interactive SwiftUI documentation
• Can be mixed with the existing code

Swift and XCode 11 updates

• Github support for swift packages in github packages registry

• Swift packages are finally available for all apple platforms

• Editors in XCode
  • Minimap on the right pane
    • MARK is now visible on the minimap and holding down the cmd key shows methed and variable names for easy navigation
  • Refactor and rename now applies to documentation as well
  • Live comparison of the diff with the previous commit
  • Related content
    • Visible when needed, hidden when there is no content

  • Test Plans

    • Combination of tests, with different tools & devices runs in a laned style

  • Device Conditions

    • Simulations like network and device temperature

  • Result bundles to see the details of a test suite

  • Feedback

    • App metrics
      • Anonymized metrics for device statuses like battery, memory usage etc.
    • Integrated feedback in testflight
      • Getting a screenshot brings a feedback form for testflight users

macOS Catalina

• Project Catalyst iPad -> macOS

  • 1. Click the checbox in XCode 11 for mac
  • 1. Make your iPad better by adapting larger layouts and keyboard behaviors
  • 1. Refine the implementation for macOS specific features
• Dedicated read-only system volume to enhance security by limiting the access control
  • User data & apps
  • Operating system

watchOS

• Independent experience by running standalone on the watch exclusively
  • Supports running without iOS app (this is a checkbox in the target settings)
• Self-care, mindfulness, physical therapy, smart alarms APIs
• SwiftUI to build easy watch app features
• Direct download and smaller bundles

iOS 13

• Dark Mode

  • Minimal chrome
  • Content focused
  • Semantic colors
    • Lighter layers above to enhance focus in the dark mode
  • Adaptive materials

• Cards

  • Default presentation style now rather than a fullscreen modal
  • Dismissable easily by swiping down

• Symbols

  • SF Symbols with more than 1500 symbols to scale along with the text when the font sizes change

iPadOS

• Multitasking

  • UIWindowScene API
  • A new SceneDelegate object separate from AppDelegate to handle multitasking scenes
  • A new state restoration system using the NSUserActivity API

• PencilKit

• Productivity Gestures

  • Using NSUndoManager, pinches and swipes for undo & copy & paste

Accessibility

• Discoverability

  • Quick start
  • Easier customizability in the settings app

• Voice Control

  • Comprehensive
  • Text editing
  • Awareness
  • Spoken gestures

Privacy

• Design for privacy
  • Process on device
  • Ask first
  • Use random identifiers
  • Encrypt
• Allow once

• Two staged location access for, only when in use and always allow

• Sign in with Apple

  • Fast, easy signing without all the tracking
  • Streamlined account setup
  • Verified email addresses
  • Built-in security with always on 2FA
  • Available on Android and Web as well!

ML

• 5 trillion operation per second capable neural chip
• Text recognition from an image
• Image saliency to define a heat map on an image to find focus areas on a given picture
• On-device speech

• Speech saliency to understand the pronunciation, pitch and cadence of a speech

• CreateML

  • Now a macOS app which lets a user build an ML model with zero
  • Realtime feedback on model training
  • Get to experiment and preview models

Siri

• Shortcut app
  • Automations to have combined scenarios for specific app actions

AR

• Reality Composer

  • Layout AR experiences in 3D
  • macOS, iOS and iPadOS
  • Guaranteed to look great

• RealityKit

  • Modern real-time 3d engine

• ARKit3

  • Simultaneous use of front and back camera
  • People occlusion
  • Motion capture

Metal

• Easy to use
• Powerful compute

• Built for pros

• Metal support in iOS simulator
• Metal memory debugger