PPT of Google Compose Camp session 4 by GDSC MIET

1. Compose Camp
Android Basics with Compose:
Unit 3 Pathway 1

2. Dhruv
Android Lead
Brijesh Chauhan
Android Lead
Speakers

3. Welcome Back
Any questions

4. TOPIC TIME
Kotlin Fundamentals 01:15 - 0:00
Build Affirmations App 0:00 - 0:00
Change App Icons 0:00 - 2:30
Material theme Intro 2:30 - 2:50
Surprise 2:50 - 3:00
Wrap Up 0:00 - 1:30
Today’s Schedule

5. Kotlin Fundamentals

6. Generic allow a data type, such as
a class, to specify an unknown
placeholder data type that can be
used with its properties and
methods.
Generics

7. Define Genric datatype class
Instance of Generic Class

8. Enum Class
An enum class is used to create
types with a limited set of
possible values

9. Data Class
Classes which only contain data. They don't
have any methods that perform an action.

10. Singleton object
A singleton is a class that can only have
a single instance.

11. Singleton objects syntax
to Access property
to make object companion

12. Extend classes with new properties and
methods

13. apply{}
let{}
with{}
run{}
Some scope functions in kotlin
are:
Scope Functions

14. Collections in Kotlin

15. Arrays in Kotlin
An array is a sequence of values that all have the same data type.

16. Array Syntax
to create array in kotlin:
to access element:
to update value:

17. Problem in array

18. List
A list is an ordered, resizable collection, typically
implemented as a resizable array.
To iterate element of list:

19. Sets
A set is a collection that does not have a specific order and
doesn't allow duplicate values.

20. Map collection
A Map is a collection consisting of keys and values. It's called a map
because unique keys are mapped to other values.

21. Syntax to create Map in Kotlin

22. Higher order Functions in
Kotlin

23. forEach() function
The forEach() function executes the function
passed as a parameter once for each item in the
collection.

24. map() function
The map() function lets you transform a collection into a new
collection with the same number of elements.

25. filter() function
The filter() function lets you
create a subset of a
collection.

26. More Higher Order Functions
groupBy()
fold()
sortedBy()
Here are some more higher order functions:

27. Practise Set 1

28. Now it's time to make an
Affiramation App

29. Output of Affirmation App

30. Practise Set 2
Build a grid layout in your app.

31. Get the starter code
Material theming in Kotlin

32. Colour Scheme for app based on different
themes

33. Typography heirarchy for the application

34. Revealing Surprise !!

35. Compose
Compose
Camp
Camp
Session 4
Friday, October 7th
Audi 5, Raman Block
Compose Camp app submission guidelines

36. Problem Statements
An app which could help your
fellow students or faculty or
college. Some suggestions
here could be, Time-table
tracking app, Attendance
recording app, University
transportation tracking app,
University navigation app,
University database for
different departments etc.
College or University App
Recreate four or more
screens of any play store
application (with >=50000
downloads) using Jetpack
Compose. You can choose to
make clones of social media
apps, music apps or any other
application that is commonly
used in your region.
Clone App
An app that can change an
individual’s life or whole
business performance. We
would encourage you to go to
small local business owners e.g.
Bakery Shop, Gyms Centers,
Restaurant or any other local
businesses to understand their
business model and identify a
problem that can be solved by
using an app.
Solution App

37. App
Submission
Social Media
https://forms.gle/Zfopvf4zHSw
BSsFRA
linktr.ee/gdsc_miet

38. Join GDSC official
WhatsApp group

39. Lets Begin the
Questions &
Answers
Round