Title: What the Flutter? The Flutter SDK by Google, is the new Open Source UI SDK to create native applications in one codebase. But, what is Flutter and why should you care about it? What are the implications and key differences from all other mobile development SDKs? How is the community reacting to it? At the end of the talk, you’ll understand the decisions behind Flutter, why is it so different from others mobile development tools and platforms and why so many developers are already addicted to it. Let’s understand together the power of a community that grabbed a new open-source project to help others.

2. Filipe Barroso
Senior Software Developer @ Acceptto
- Mobile & Machine Learning Engineer
Community Organizer
- Google Developers Group Lisboa, part
of Lisbon Tech Alliance
- Flutter Portugal
@ABarroso

3. . Why is Flutter different
. What’s exciting about Flutter
. Why communities matter
@ABarroso

4. @ABarroso
flutter.dev
“At a high level, Flutter is a high-performance,
cross-platform mobile application runtime and
its corresponding framework.” (2016)
~ Ian “Hixie” Hickson
Twitter: @Hixie

5. Robot by Richard Schumann, Laptop by Dhika hernandita from the Noun Project, Mac by Govind Dhiman, Web by
Icongeek26 all from the Noun Project, @ABarroso

6. Native
Code
@ABarroso

7. Native
Code
Events
Canvas
BluetoothLocation
AudioSensors
Camera etc.
@ABarroso

8. Native
Code Widgets,
Rendering
Platform
Channels
Events
Canvas
BluetoothLocation
AudioSensors
Camera etc.
@ABarroso

9. Native
Code Widgets,
Rendering
Platform
Channels
Events
Canvas
BluetoothLocation
AudioSensors
Camera etc.
@ABarroso

10. Native
Code Widgets,
Rendering
Platform
Channels
Events
Canvas
BluetoothLocation
AudioSensors
Camera etc.
@ABarroso

11. Robot by Richard Schumann, Laptop by Dhika hernandita from the Noun Project, Mac by Govind Dhiman, Web by
Icongeek26 all from the Noun Project, @ABarroso

12. Native
Code
Events
Canvas
BluetoothLocation
AudioSensors
Camera etc.
@ABarroso

13. Native
Code
BluetoothLocation
AudioSensors
Camera etc.
OEM
Widget
Events
Canvas
@ABarroso

14. Android iOS
@ABarroso

15. Native
Code
BluetoothLocation
AudioSensors
Camera etc.
Events
Canvas
WebViews
Bridge
@ABarroso

16. Native
Code
BluetoothLocation
AudioSensors
Camera etc.
Events
Canvas
Bridge
OEM
Widget
@ABarroso

17. Native
Code Widgets,
Rendering
Platform
Channels
Events
Canvas
BluetoothLocation
AudioSensors
Camera etc.
@ABarroso

18. https://flutter.dev/docs/development/data-and-backend/state-mgmt/declarative

19. Skia Dart Text
Foundation
Animation Painting
Rendering
Widgets
Material
Gestures
Engine
(C++)
Framework
(Dart)
Cupertino
@ABarroso

20. What is a Widget?
@ABarroso

21. Widgets?
@ABarroso

22. Widgets
Material Cupertino
@ABarroso

24. Olá, Open Source Lisbon

25. Superpowered by Dart
@ABarroso

26. Develop Deploy
@ABarroso

27. Develop Deploy
JIT + VM
@ABarroso

28. Develop Deploy
JIT + VM
Hot
Reload
@ABarroso

29. Develop Deploy
JIT + VM
AOT +
runtime
Native
x86/Arm
Hot
Reload
@ABarroso

30. @ABarroso

31. - Full control over the rendering stack
@ABarroso

32. - Full control over the rendering stack
- Reactive views with no bridge
@ABarroso

33. - Full control over the rendering stack
- Reactive views with no bridge
- Great development experience with Hot
Reload
@ABarroso

34. - Full control over the rendering stack
- Reactive views with no bridge
- Great development experience with Hot
Reload
- Fast, smooth, and predictable UI
@ABarroso

35. - Full control over the rendering stack
- Reactive views with no bridge
- Great development experience with Hot
Reload
- Fast, smooth, and predictable UI
- Deploy to multiple platforms from one
codebase
@ABarroso

37. @ABarroso
flutter.dev
“Flutter is Google’s UI
toolkit for building
beautiful, natively
compiled applications
for mobile, web, and
desktop from a single
codebase.” (2019)
flutter.dev

38. @ABarroso
“An Open Source Community”

39. Purpose
Why does the
community
exist?
● Talk about Flutter
● Sharing knowledge &
news
● Support each other

40. Identity
Who is this for
● Curious
● Who want to learn
● Wish to improve

41. Values
Which 3
principles are
important to us?
● Motivation
● Respect
● Reliability

42. Rules
What guidelines
and boundaries
help us achieve
our purpose and
represent our
values?
● Free events
● Open Sourced Content
● Community First

43. Experience
What happens
in our
community on a
recurring basis
● Tech Talks
● Workshops
● Social Projects

44. Maintainers
Who lead the
community?
● Organizers act as
Open Source
maintainers
● Community Requests
● 1 person responsible
per event

45. VOST.pt

46. Fogos.pt

47. Flutter Portugal
Twitter | Github | Meetup
@FlutterPortugal
Discord
chat.flutter.pt

48. Twitter: @ABarroso

49. PÁRA DE
FALAR

50. Q&A
Filipe Barroso
Twitter: @ABarroso
@ABarroso