This document provides an overview of key Android concepts and components including Material Design principles, common UI elements like bottom navigation bars and cards, and popular Android libraries like Glide, Retrofit, RxJava, Firebase, and more. It discusses when and why to use different UI elements and libraries, and provides brief descriptions and examples. The document aims to introduce fundamental Android concepts and tools for developing mobile apps.

1. Android,
Setting Basic
Hosuk Shin
fb.com/hosuk0w0

2. Hosuk Shin
PLAYWINGS 2014.06 ~ 2018.03
KAKAO 2018.04 ~ now

3. Theory

4. https://youtu.be/rrT6v5sOwJg

5. Once upon a time when Android begins…

7. Android 4.4

8. Meanwhile the iPhone was…

9. Android 5.0

10. Material Design is design System.

11. Material Design is like ‘origami’

12. Like other systems, there are rules

13. Components

14. Bottom
App Bar
A bottom app bar displays navigation and key actions at the
bottom of mobile screens.
When to use :
- Access to a bottom navigation drawer
- Screens with two to five actions

15. Bottom
Navigation
Bottom navigation bars allow movement between
primary destinations in an app.
When to use :
- Top-level destinations that need to be accessible
from anywhere in the app
- Three to five destinations

16. Bottom
Sheet
Bottom sheets are surfaces containing supplementary
content that are anchored to the bottom of the screen.
When to use :
- Some of the tasks that have to watch in while do
something else.
- Do some action

17. Check-
Box
Selection controls allow the user to select options.
- Radio Buttons
- CheckBoxes
- Switchs

18. Collapsing
Toolbars
The Material Design responsive layout grid adapts to
screen size and orientation, ensuring consistency across
layouts.

19. Floating
Buttons
A floating action button (FAB) represents the primary action
of a screen.

20. Cards Cards contain content and actions about a single subject.

21. SnackBars Snackbars provide brief messages about app processes at
the bottom of the screen.

22. Tabs Tabs organize content across different screens, data sets,
and other interactions.

23. Text
Fields
Text fields let users enter and edit text.

24. BREAK TIME / Q&A

25. Libraries

26. There are tons of libraries about Android

27. Glide IMAGE HANDLING LIBRARY
fetching, decoding, and displaying video stills, images, and
animated GIFs.
(If using images, you have to use it)

28. Retrofit A type-safe HTTP Client for Android and Java
Retrofit turns your HTTP API into a Java interface.
(You can do it with async)

29. Rx Reactive libraries series (RxJava, RxKotlin, RxAndroid)
RxJava is a Java VM implementation of Reactive
Extensions: a library for composing asynchronous and
event-based programs by using observable sequences.

30. Coroutines Kotlin Asynchronous or non-blocking support library
If you use kotlin to make Android apps,
It is a way better to use it than RxKotlin.

31. Firebase

32. Crashlytics Android Error Report system
When to use :
- When you want to catch errors in User cases.
- When you want to catch meaningful signals from Users.

33. Google
Analytics
Event Tracking System
When to use :
- to get events that users made.
- to get information about your service.

34. Firebase
Message
Service
Message Cloud Service
When to use :
- When you want to send notifications to users.
- When you want users communicate each other with
message.

35. Dynamic
Links
Dynamic Link
When to use :
- When you want users jump to any platforms you serve
smoothly.

36. THE END / Q&A