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WWDC19

Table of Contents

=================

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