Fernando Cejas gave a talk on user interface, user experience, and usability design for Android applications. He discussed key concepts like the difference between UI, UX, and usability. He also provided an overview of common Android design patterns for navigation, actions, and visual structure. Cejas emphasized testing designs with real users and following platform conventions to provide intuitive experiences.

1. @fernando_cejas

2. Who am I?
• Barcelona GDG Organizer.
• Software Engineer.
• Android lover.
• Geek.

3. Who am I?
• Not a UX/UI guy…. I'm a coder...
• So what the hell I’m doing here?

4. Agenda
• User Interface
• User Experience
• Usability
• Android Design Patterns
• Examples
• Advices
• Conclusion

5. Why this talk?

6. WTF?

7. WTF?

8. WTF?

9. What is User Interface? (UI)
• A common boundary or surface between the
interactive system and the user.
• All elements which provide communication
between the interactive system and the user.

10. Elements of a User Interface

11. What is User Interface Design?
• User interface design is the process of
supporting the tasks (goals) of the user, ideally
in a friendly and articulate manner.

12. What about User Experience (UX)?
• User experience (UX) is about how a person feels about
using a product, system or service. User experience is
subjective in nature, because it is about an individual’s
feelings and thoughts about the system.

13. What is Usability?
• Usability means that a person using a system
finds it easy to understand and use.
• A usable system allows a person to focus on
their tasks, and not on the system itself.
• A usable system most often does what a!
person expects.

14. Usability Iceberg
Interaction Techniques.
Keyboard and mouse
mappings, menus,
feedback, etc.
Visuals.
Cues, feedback, and
aesthetics.

15. Android Design Patterns

16. What is a Design Pattern?
• It’s a design solution to a recurring problem.
• It’s also about not reinventing the wheel.
• People want to use what they have learnt
already using the phone.

17. Things change… Isn’t it?

18. Things change… Isn’t it?

19. Ice Cream Sandwich! Android 4.0
• A big quality step.
• Mature, stable and elegant.

20. For Smartphones and Tablets
• Different devices have different usability.

21. Android Main Themes
• Holo Light and Holo Dark.

22. Your branding
• Consistency has its place in Android, but you also have the flexibility
to customize the look of your app to reinforce your brand.

23. Gestures
• Gestures allow users to interact with your app by
manipulating the screen objects you provide

24. Gestures
• Gestures allow users to interact with your app by
manipulating the screen objects you provide

25. Gestures
• Gestures allow users to interact with your app by
manipulating the screen objects you provide

26. Application Structure

27. Navigation with Back and Up

28. Action Bar

29. Action Bar
• Consider split it when
having many elements

30. Navigation Drawer
• The navigation drawer is a panel that transitions in from the left
edge of the screen and displays the app’s main navigation options.
• The user can open the drawer panel by touching the navigation
drawer indicator.

31. Multi-pane Layouts

32. Multi-pane Layouts

33. Compound Views and Orientation Changes

34. Compound Views and Orientation Changes

35. Compound Views and Orientation Changes

36. Compound Views and Orientation Changes

37. Swipe Views
• Navigate with gestures through the content.

38. Contextual Action Bar

39. Notifications
• The notification system allows your app to keep the user informed
about events, such as new chat messages or a calendar event.

40. Pure Android

41. Google Glass…

42. Design for Glass….
• Users typically have multiple devices that store and display
information for specific time periods. Glass works best with
information that is simple, relevant, and current.
• Don't try to replace a smartphone, tablet, or laptop by
transferring features designed for these devices to Glass.
Instead, focus on how Glass and your services complement
each other, and deliver an experience that is unique.

43. Design for Glass….
• Design interfaces that use imagery, colloquial voice
interactions, and natural gestures.

44. Android Wear….
• Android wearables provide just the right information at just
the right time, allowing you to be connected to the virtual
world and present in the real world.

45. Android Wear - Pages
• Pages are additional cards that can appear to the right of
your main card in the stream. If your core message is longer
than a short snippet, do not sacrifice glanceability by packing
a lot of information into your primary notification. Instead, use
pages to provide additional content.

46. Android Wear - Notification Stacks
• Stacks are a way of adding multiple useful notifications
without overwhelming the user’s stream. If your application
may produce multiple concurrent notifications, consider
combining them into a stack.

47. Android Wear - Pages
• Voice replies are primarily used by messaging applications to
provide a hands-free way of dictating a short message. You
can also provide a up to five suggested replies or “canned
responses” that are useful in a wide range of cases.

48. UI/UX Examples
Beautiful… Sweeeet!!!!

49. UI/UX Examples
Grand St.

50. UI/UX Examples
Banjo

51. UI/UX Examples
Timely Alarm Clock.

52. Some advice…
• Don't port the UI from other platforms.
• Don't override the behavior of system buttons.
• Know your user and get feedback from him.
• Test on real users, early and often.
• Do what the user expects.
• The most common operations should be visible.
• Don't reinvent the wheel.

53. Some advice…
• Innovate but don't go further than standards
• Build better products, not more features

54. Any questions?

55. Thanks!
@fernando_cejas
www.fernandocejas.com