Android programming for Swift iOS developers 101

Talking about how to start to write Android platform code with previous iOS development experience.
#oleksiiholub #svitlasmarttalk #iosdevelopment #iosmeetup
Oleksii Holub (Ukraine, Kyiv) works as a Mobile Architect and Team Lead. In this speech, he talks about how to start Android application development from the iOS developer perspective.
"Svitla Smart Talk, iOS" meetup was held on 31.05.2021 in Zoom.
Announce: https://www.facebook.com/events/123406493091782
Main part: https://www.youtube.com/watch?v=C1zRWj7p29Q
Q&A part: https://www.youtube.com/watch?v=AoJNFi_NBi4

Transcript

1. OLEKSII HOLUB, 2021 Android programming for Swift iOS developers 101 ADD ONE MORE PLATFORM TO YOUR KNOWLEDGE
2. OLEKSII HOLUB, 2021 WHO AM I. SPARE TIME
3. OLEKSII HOLUB, 2021 WHO AM I. 9 TO 5 AND A BIT MORE IOS DEVELOPER, MOBILE ARCHITECT, TEAM LEAD IN 40M APP DOWNLOADS COMPANY ~10 YEARS IN COMMERCIAL SOFTWARE DEVELOPMENT CONDUCTED ~130 IOS DEVELOPER INTERVIEWS WORKED WITH A NUMBER OF STARTUPS, OFFSHORING AND OUTSTAFFING COMPANIES
4. OLEKSII HOLUB, 2021 WHO AM I. 9 TO 5 AND A BIT MORE LINKEDIN
5. OLEKSII HOLUB, 2021
6. OLEKSII HOLUB, 2021 WE’LL COVER TODAY - WHERE TO BEGIN - LANGUAGE - MAIN DEVELOPER TOOLS - ANDROID PROJECT INFRASTRUCTURE
7. OLEKSII HOLUB, 2021 WE’LL COVER TODAY - WHERE TO BEGIN - LANGUAGE - MAIN DEVELOPER TOOLS - ANDROID PROJECT INFRASTRUCTURE
8. OLEKSII HOLUB, 2021 WE’LL COVER TODAY - WHERE TO BEGIN - LANGUAGE - MAIN DEVELOPER TOOLS - ANDROID PROJECT INFRASTRUCTURE
9. OLEKSII HOLUB, 2021 WE’LL COVER TODAY - WHERE TO BEGIN - LANGUAGE - MAIN DEVELOPER TOOLS - ANDROID PROJECT INFRASTRUCTURE - WORKSHOP
10. OLEKSII HOLUB, 2021 IMPORTANT NOTICE 1 THIS IS 101, NOT AN EXHAUSTIVE TRAINING
11. OLEKSII HOLUB, 2021 IMPORTANT NOTICE 2 THIS IS NOT AN ANDROID FROM SCRATCH COURSE. WE ARE MATCHING ALL WE SEE WITH OUR PREVIOUS IOS EXPERIENCE
12. OLEKSII HOLUB, 2021 HOW IDEA STARTED I HAD A TASK TO REPLICATE EXISTING IOS APPLICATION TO ANDROID
13. OLEKSII HOLUB, 2021 WHERE TO BEGIN - https://developer.android.com/studi o - https://kotlinlang.or g - https://developer.android.com/guide
14. OLEKSII HOLUB, 2021 WHERE TO BEGIN - https://developer.android.com/studi o - https://kotlinlang.or g - https://developer.android.com/guide BUT IT’S DOESN’T WORK THIS WAY
15. OLEKSII HOLUB, 2021 WHERE TO BEGIN THERE’S A 2014 BOOK ON A TOPIC WHICH IS QUITE OUTDATED AND MAY BE MORE DISTRACTIVE THAN USEFUL
16. OLEKSII HOLUB, 2021 WHERE TO BEGIN THERE’S A 2014 BOOK ON A TOPIC WHICH IS QUITE OUTDATED AND MAY BE MORE DISTRACTIVE THAN USEFUL
17. OLEKSII HOLUB, 2021 LANGUAGE - ANDROID WORKS ON JVM - JAVA KNOWLEDGE IS OK BUT NOT REQUIRED FOR BEGINNING - KOTLIN IS COMPILED INTO JAVA BYTE CODE - KOTLIN FULLY SUPPORTED BY GOOGLE - BOTH LANGUAGES ARE ALMOST FULLY INTERCHANGEABLE - IDE CONTAINS KOTLIN LINTER
18. OLEKSII HOLUB, 2021 LANGUAGE - ANDROID WORKS ON JVM - JAVA KNOWLEDGE IS OK BUT NOT REQUIRED FOR BEGINNING - KOTLIN IS COMPILED INTO JAVA BYTE CODE - KOTLIN FULLY SUPPORTED BY GOOGLE - BOTH LANGUAGES ARE ALMOST FULLY INTERCHANGEABLE - IDE CONTAINS KOTLIN LINTER
19. OLEKSII HOLUB, 2021 LANGUAGE - ANDROID WORKS ON JVM - JAVA KNOWLEDGE IS OK BUT NOT REQUIRED FOR BEGINNING - KOTLIN IS COMPILED INTO JAVA BYTE CODE - KOTLIN FULLY SUPPORTED BY GOOGLE - BOTH LANGUAGES ARE ALMOST FULLY INTERCHANGEABLE - IDE CONTAINS KOTLIN LINTER
20. OLEKSII HOLUB, 2021 LANGUAGE - ANDROID WORKS ON JVM - JAVA KNOWLEDGE IS OK BUT NOT REQUIRED FOR BEGINNING - KOTLIN IS COMPILED INTO JAVA BYTE CODE - KOTLIN FULLY SUPPORTED BY GOOGLE - BOTH LANGUAGES ARE ALMOST FULLY INTERCHANGEABLE - IDE CONTAINS KOTLIN LINTER
21. OLEKSII HOLUB, 2021 LANGUAGE - ANDROID WORKS ON JVM - JAVA KNOWLEDGE IS OK BUT NOT REQUIRED FOR BEGINNING - KOTLIN IS COMPILED INTO JAVA BYTE CODE - KOTLIN FULLY SUPPORTED BY GOOGLE - BOTH LANGUAGES ARE ALMOST FULLY INTERCHANGEABLE - IDE CONTAINS KOTLIN LINTER
22. OLEKSII HOLUB, 2021 LANGUAGE - ANDROID WORKS ON JVM - JAVA KNOWLEDGE IS OK BUT NOT REQUIRED FOR BEGINNING - KOTLIN IS COMPILED INTO JAVA BYTE CODE - KOTLIN FULLY SUPPORTED BY GOOGLE - BOTH LANGUAGES ARE ALMOST FULLY INTERCHANGEABLE - IDE CONTAINS KOTLIN LINTER
23. OLEKSII HOLUB, 2021 VARIABLE AND CONSTANT SWIFT KOTLIN
24. OLEKSII HOLUB, 2021 CLASS / PROPERTY / FUNCTION SWIFT KOTLIN
25. OLEKSII HOLUB, 2021 FUNCTION SWIFT KOTLIN
26. OLEKSII HOLUB, 2021 PROTOCOL / GENERIC FUNCTION SWIFT KOTLIN
27. OLEKSII HOLUB, 2021 LAMBDA / FUNCTION TYPE SWIFT KOTLIN
28. OLEKSII HOLUB, 2021 EXTENSION SWIFT KOTLIN
29. OLEKSII HOLUB, 2021 COLLECTION - ARRAY SWIFT KOTLIN
30. OLEKSII HOLUB, 2021 COLLECTION - MAP SWIFT KOTLIN
31. OLEKSII HOLUB, 2021 COLLECTION TRANSFORMATION FUNCTIONS SWIFT KOTLIN
32. OLEKSII HOLUB, 2021 LANGUAGE MORE MATCHES AUTHOR - https:// github.com/Nilhcem
33. OLEKSII HOLUB, 2021 LANGUAGE https://github.com/ alexth/iOS-and- Android-development- analogies
34. OLEKSII HOLUB, 2021 LANGUAGE https://github.com/ alexth/iOS-and- Android-development- analogies
35. OLEKSII HOLUB, 2021 LANGUAGE ONLINE KOTLIN PLAYGROUND!
36. OLEKSII HOLUB, 2021 DEVELOPER TOOLS
37. OLEKSII HOLUB, 2021 DEVELOPER TOOLS HOW TO INSTALL ANDROID STUDIO
38. OLEKSII HOLUB, 2021 DEVELOPER TOOLS HOW TO INSTALL ANDROID STUDIO ASK YOUR ANDROID COLLEAGUE OR FRIEND IF YOU HAVE ONE
39. OLEKSII HOLUB, 2021 DEVELOPER TOOLS HOW TO INSTALL ANDROID STUDIO
40. OLEKSII HOLUB, 2021 DEVELOPER TOOLS GRADLE
41. OLEKSII HOLUB, 2021 DEVELOPER TOOLS LAYOUT EDITOR
42. OLEKSII HOLUB, 2021 DEVELOPER TOOLS ANDROID EMULATOR
43. OLEKSII HOLUB, 2021 DEVELOPER TOOLS ANDROID STUDIO HOT KEYS CMD + F - SEARCH ON PAGE CMD + R - SEARCH AND REPLACE ON PAGE CTRL + SHIFT + F - SEARCH IN PROJECT OPT + CMD + L - INDENT SELECTED CODE PIECE
44. OLEKSII HOLUB, 2021 WHAT’S DIFFERENT
45. OLEKSII HOLUB, 2021 WHAT’S DIFFERENT Activity SIMILAR TO APPDELEGATE*
46. OLEKSII HOLUB, 2021 WHAT’S DIFFERENT Activity Activity MAY BE MORE THAN ONE IN ONE APP
47. OLEKSII HOLUB, 2021 WHAT’S DIFFERENT Activity Activity Intent NO DIRECT DATA TRANSFER, INTENT IS THE CONNECTOR
48. OLEKSII HOLUB, 2021 WHAT’S DIFFERENT Activity Activity Intent MainApplication SIMILAR TO APPDELEGATE TOO, BUT NOT EVEN INCLUDED IN PROJECT BY DEFAULT
49. OLEKSII HOLUB, 2021 WHAT’S DIFFERENT Activity FRAGMENTS ARE LIKE CONTAINER VIEW CONTROLLER OR VIEW CONTROLLER OR VIEW Fragment
50. OLEKSII HOLUB, 2021 WHAT’S DIFFERENT ACTIVITIES AND FRAGMENTS HAVE LIFECYCLE KINDA SIMILAR TO VIEWCONTROLLER
51. OLEKSII HOLUB, 2021 WHAT’S DIFFERENT Activity ACTIVITY MAY CONTAIN A NUMBER OF FRAGMENTS, THEIR LIFECYCLE DEPENDS ON PARENT ACTIVITY Fragment Fragment
52. OLEKSII HOLUB, 2021 WHAT’S DIFFERENT Activity : CONTEXT CONTEXT IS GOD OBJECT RESPONSIBLE FOR UI REFERENCES
53. OLEKSII HOLUB, 2021 WHAT’S DIFFERENT THERE MAY BE NO SUCH UI ELEMENTS AS IN IOS BUT MUCH MORE ANOTHER ONES MATERIAL UI GUIDE
54. OLEKSII HOLUB, 2021 WHAT’S DIFFERENT THERE MAY BE NO SUCH UI ELEMENTS AS IN IOS BUT MUCH MORE ANOTHER ONES
55. OLEKSII HOLUB, 2021 WHAT’S DIFFERENT EXAMPLE: BOTTOM NAVIGATION != TAB BAR
56. OLEKSII HOLUB, 2021 WHAT’S DIFFERENT ONE OF POSSIBLE BOTTOM NAVIGATION IMPLEMENTATIONS SIMILAR TO TAB BAR + NAVIGATION CONTROLLER STACKS IN EACH TAB https://github.com/Codeveyor/ Android-Tab-Bar
57. OLEKSII HOLUB, 2021 WHAT’S DIFFERENT fun onConfigurationChanged(newConfig: Configuration) THIS METHOD MAY BREAK THINGS
58. OLEKSII HOLUB, 2021 WHAT’S DIFFERENT THERE ARE VIEWMODELS ON SYSTEM LEVEL, BUT THEY’RE NOT A CLASSIC MVVM YOU THINK OF
59. OLEKSII HOLUB, 2021 WHAT’S DIFFERENT SOME API’S MAY LOOK STRANGELY COMPOSED, MOSTLY BECAUSE OF VARIETY OF ANDROID DEVICES AND AMOUNT OF POSSIBLE CONFIGURATIONS
60. OLEKSII HOLUB, 2021 ANDROID PROJECT INFRASTRUCTURE LET’S CHECK HOW ANDROID STUDIO LOOKS LIKE!
61. OLEKSII HOLUB, 2021 WORKSHOP PROJECT
62. OLEKSII HOLUB, 2021 THANKS EVERYONE! MAY THE FORCE BE WITH YOU! LINKEDIN