Building Unsplash for iOS

This presentation covers the various aspects of building Unsplash for iOS.
• Original concept, re-design
• How we work
• Unusual technical bits
• Stats

Presented at CocoaHeads Montreal on September 20th, 2018.

1. Building Unsplash for iOS OLIVIER COLLET. COCOAHEADS MONTREAL. 20.09.2018
2. Ryan Loughlin
3. Unsplash • Beautiful photos you can download for free and use for anything. • Gifted by the most generous community of photographers.
4. The process Patrick Schneider
5. Our mobile strategy • We’re a platform that helps creative people. • The transition from computers to mobile devices is starting. • It’s the beginning of this transition. • We’re early, and not in a rush.
6. Valdemaras D.
7. An app for iPad • iOS 11 was a big step for iPad • iPad is slowly replacing computers for creative work • Drag & drop + photos = ! • Why not for iPhone too?
8. Jakob Owens
9. iOS app First attempt • Browse photos • Browse collections • Search • A dedicated wallpaper section • Drag & drop
10. George Desipris
11. iOS app October 2017
12. BORING! " Charles Deluvio
13. iOS app Simplified • Cut cut cut • Keep the basics: • New photos • Featured collections • Search
14. Mert Atakan
15. iOS app March 2018
16. iOS app March 2018
17. Samuele Errico Piccarini
18. Launch April 5, 2018 • No profiles • No authentication • No ability to like or collect photos • No photo upload
19. Fabian Struwe
20. The team • Mikael - Big picture + vision • Luke - Big picture + roadmap • Kirill & Charles - Design • Olivier - Development
21. Ian Keefe
22. Planning updates • 6-week cycles • Release an update every cycle • Photographers profiles (released) • Photo submission (upcoming)
23. Some tech stuff Carlos Irineu da Costa
24. On-demand resources • Images for the on-boarding flow • Downloaded when downloading the app • Discarded once the on-boarding is completed
25. Nathan Dumlao
26. Storyboards • Best code is no code • A storyboard per main flow • Wrote a script to use identifiers as constants in the code
27. Donald Giannatti
28. Dependencies not welcome! • Facebook login using a WebView, no FB SDK • Re-wrote the 1Password extension in Swift • Wrote a Swift tracker for Snowplow (analytics) • Remaining dependencies: • Reachability (will keep… maybe) • CoreAnimator (will ditch)
29. Chris Fuller
30. Networking • No shared API client • Each request is independent • Requests are subclasses of Operation
31. David Emrich
32. View Controllers • No coordinator or flow controller • PhotosViewController is used a lot • As a child view controller sometimes • Remains generic, a datasource controls its content
33. Ryan Stone
34. Custom transitions • Tons of work! • Currently spaghetti code, needs to be refactored • TONS of work!
35. Mark Cataldo
36. Drag & drop • Drag to other apps is easy • Receiving a drop is a bit more complicated • Custom Drag to Download widget • Inspired by Things • Pythagorean theorem #
37. Pythagorean theorem #
38. Nathan Peterson
39. Challenges • Testing on-demand resources • Those crazy custom transitions
40. Stats Chris Liverani
42. Ting Tian
43. Downloads / Source
44. Ryan McManimie
45. Devices / per week Sessions per device / per week
46. $ Olivier Collet @ocollet