WWDC19

Table of Contents

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• What’s New in Xcode 11 - Tuesday
  • Workflow Updates
    • Assistant and Editor Splitting
    • Code Completion Improvements
  • Swift Package Manager
  • Source Control Changes
  • Design Tools
  • Debugging
  • Testing
    • Test Plans
  • Simulator Updates
  • Instruments
  • SwiftUI

What’s New in Xcode 11 - Tuesday

Session materials: https://developer.apple.com/videos/play/wwdc2019/401/

Workflow Updates

Assistant and Editor Splitting

• Option click to add a vertical editor in a selected editor
• Focus mode to enlarge a selected editor
• Existing hotkeys are compatible with the new editor shortcuts
• A smart minimap for the bird’s eye view of the code
• Add documentation and refactor documentation as well
• Change bars show the diff real time

Code Completion Improvements

• Function overloads
• Better enum completions

Swift Package Manager

• Packager are first class
• Integrated throughout Xcode

Source Control Changes

• Ability to stash code within Xcode
• Ability to cherry-pick a commit

Design Tools

• Ability to localize assets as well
• Dark and light variants for the icons which is reflected immediately on Storyboards
• SF Symbols!
• Environment overrides and accessibility settings for the active simulator session

Debugging

• The new device condition section in the devices tab
  • Network conditioner
  • Thermal changes

Testing

Test Plans

• Multiple localized test scenarios
• Works for iPad apps for mac and SwiftUI as well

Simulator Updates

• The new simulator is built on top of metal
  • Metal using apps can use
  • CPU use is reduced up to %90
  • 60 FPS
  • Simulator warm boots are 2x faster
• A standalone watch simulator without the need of an iphone simulator

Instruments

• Bunch of new lanes for instrumental tools including SwiftUI

SwiftUI

• UIViewRepresentable protocol for SwiftUI previews