Extending Xcode 8 - try! Swift NYC 2016

Daniel Jalkut's talk about the new extension support in Xcode 8.

Transcript

1. daniel jalkut
   @danielpunkass
   Extending Xcode 8
   

   View Slide

2. A Good Developer…
   

   View Slide

3. Source Editor Extensions
   

   View Slide

4. Source Editor Extensions
   ⊕ Debuting with Xcode 8
   ⊕ Extend Xcode’s source text editor only
   ⊕ Only Apple-supported mechanism
   

   View Slide

5. Bad News
   ⊕ Alcatraz is dead
   ⊕ Scope of extension impact is limited
   ⊕ Delivery is by host-application only
   

   View Slide

6. Good News
   ⊕ Apple approved
   ⊕ Designed for security and stability
   ⊕ Signal of things to come?
   

   View Slide

7. World of Possibilities…
   
   

   View Slide

8. World of Possibilities…
   ⊕ Transform text and selection
   ⊕ Access web resources
   ⊕ Display rudimentary UI
   ⊕ Anything the host app can do…
   
   

   View Slide

9. … and Impossibilities
   ⊕ Anything outside the text editor
   ○ Project manipulation
   ○ Leveraging Xcode’s compiler state
   ⊕ Dynamic responses to user actions
   ○ Only menu and keyboard shortcut
   
   

   View Slide

10. Build & Run
    

    View Slide

11. Build & Run
    ⊕ Built upon App Extensions
    ⊕ Delivered by host application
    ⊕ Debuggable within Xcode itself
    

    View Slide

12. New Project
    ⊕ Create a new Mac application
    ⊕ Add a new extension target
    ⊕ Build & Run
    ⊕ Select Xcode as the target
    

    View Slide

13. View Slide

14. View Slide

15. View Slide

16. View Slide

17. View Slide

18. View Slide

19. View Slide

20. View Slide

21. View Slide

22. View Slide

23. Caveats
    ⊕ Additional setup for 10.11
    ⊕ You must sign your app and extension!
    ⊕ Run app to nudge extension registration
    ⊕ Wait a few moments after launching
    

    View Slide

24. Hot Tips
    
    

    View Slide

25. Hot Tips
    ⊕ Select Xcode as the debug target
    
    

    View Slide

26. View Slide

27. Hot Tips
    ⊕ Select Xcode as the debug target
    ⊕ Pass a source file path to Xcode
    
    

    View Slide

28. View Slide

29. View Slide

30. Hot Tips
    ⊕ Select Xcode as the debug target
    ⊕ Pass a source file path to Xcode
    ⊕ Give your command a keyboard shortcut
    
    

    View Slide

31. View Slide

32. Hot Tips
    ⊕ Select Xcode as the debug target
    ⊕ Pass a source file path to Xcode
    ⊕ Give your command a keyboard shortcut
    ⊕ Keep an eye on Apple’s own extensions
    
    

    View Slide

33. Try! Harder
    

    View Slide

34. Try! Harder
    ⊕ github.com/danielpunkass/tryharder
    ⊕ Standalone project with example extensions
    

    View Slide

35. Try! Harder
    ⊕ Manipulate text efficiently
    ⊕ Open a web page
    ⊕ Display rudimentary UI
    ⊕ Insert placeholder text
    ⊕ More?
    

    View Slide

36. As Good As Your Tools
    

    View Slide

37. View Slide