Session 1 android study jam GDSC DYPIU

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It will start soon :)

Become an Android Developer
Session - 1: Kotlin Basics
20/12/2021
12:00 PM - 1:00PM IST
GDSC DYPIU
Host: Atharv Karbhari

Topics:
● Duration of the Course and Responsibilities
● Getting Familiar with Kotlin
1. Variable Declaration
2. Declaring Functions
3. Classes
● Overview Of Android Studio

Duration of the Course and Responsibilities:
1. Make a Public Google Developer account. (Use Personal Account Only!)
Link: https://developers.google.com/
Sign In -> Developer Profile -> Settings Icon -> Change Settings -> Public -> Save
2. (Recommended) Complete the course - Android Basics in Kotlin within 10th January 2022
Link: https://developer.android.com/courses/android-basics-kotlin/course
Structure: Units -> Pathways -> Activities and Quizzes
3. Form a team and build an Android Application (Deadline: 8th January 2022)
Guidelines:
https://docs.google.com/document/d/1iL9QvmGskDU8MLwsAUDsq8WERrBvmjXVoW7CBgezy
yU/edit
(TLDR: Min. 2-3 Screens, Navigation, Connect to the Internet, Ideas)
4. # Participate in the Solution Challenge and solve real world Problems! :)

Getting Started with Kotlin:
Variable Declaration:
A variable is a reference to a RAM memory address that stores some data within.
Keyword:
val
var
Syntax: <Keyword> <variable name> : <Data Type(optional)> = <Value>
Usage:
val v1 = “Hello, World”
var v2:String = “Hello, World”

Data Types(Numbers):
Link: https://kotlinlang.org/docs/basic-types.html

Data Types(Others):
Link: https://kotlinlang.org/docs/basic-types.html
1. String Data Type: Alphanumeric characters and Symbols
Syntax: Declare using “” or ‘’
Usage:
var v1:String = “Hi”
var v2 = ‘Hello’
2. Boolean Data Type: Holds two literal values: false and true
Usage:
val v1:Boolean = false
val v2 = true

Revise:
Link: https://kotlinlang.org/docs/home.html
Learn about methods, more inbuilt functions, concepts etc
Practise:
Kotlin Playground
Link: https://developer.android.com/training/kotlinplayground

Functions: Piece of code that runs whenever called. May/ May not return some value on the place
where it is called
Keyword: fun
Syntax:
<Keyword> <variable name>(arg1:<Data Type>, arg1:<Data Type>, ….): <Data Type>{
<Body>
}
Usage:
fun addNumbers(a:Int, b:Int){
return a+b
}

Loops: Chunks of code that continue to run while the expression given to them is not equal to false
Keyword: for / while
Syntax:
for(expression){
}
while(expression){
}
Usage:
for(i in 1..10){
println(“Hello, World”)
}
val i:Int = 1
while(i<10){
println(“Hello, World”)
i+=1
}

Android Studio Fundamentals:
Create a Project:
Android Studio -> New Project -> Phone & Tablet -> Empty Activity ->
Give a name and Click on Finish

Android Studio Fundamentals:
Important Files:
1. build.gradle (Project/build.gradle)
2. build.gradle (Project/app/build.gradle)
3. AndroidManifest.xml (Project/app/src/main/AndroidManifest.xml)
4. MainActivity.kt (Project/app/src/main/java/com.example.project/MainActivity.kt)
5. res (Project/app/src/main/res)
Located in res/values/
1. strings.xml
2. colors.xml
3. themes.xml
6. activity_main.xml(res/layout/activity_main.xml)

Thank You!!
Host: Atharv Karbhari
LinkedIn
Github
Hackerrank

Session 1 android study jam GDSC DYPIU

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