Kotlin is a programming language that has gained popularity for Android development and is used by several large tech companies. It was created by JetBrains in 2011 and became the official language for Android app development when backed by Google in 2017. Major companies like Uber, Atlassian, and Pinterest use Kotlin for building internal tools and mobile apps due to its benefits like cleaner code, interoperability with Java libraries, and eliminating null pointer exceptions. The document discusses Kotlin's history and adoption in industry, personal experiences using Kotlin, tips for using Kotlin features like Parcelize for Android.

1. Kotlin in Industry
By : Ahmad Arif Faizin
Indonesia Mobile-Apps Academy
GDK x DSC

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3. What is Kotlin?

4. Fact Today

5. Fact Today
“It’s been one of the fastest growing
languages in the JVM world and people are
jumping ship from other JVM languages
like e.g. Scala.”
https://discuss.kotlinlang.org

6. History
2011 - Created by a small JetBrains
team in St. Petersburg, Russia
2016 - The official v1.0 was released
2017 - Google officially backed Kotlin
as the official language for Android

7. Kotlin adoption
• Uber uses Kotlin for building internal tools
• Gradle introduced Kotlin as their language for writing build
scripts
• Atlassian powers their Trello on Android with Kotlin
• Pinterest has incorporated Kotlin in their application with
an average use of 150M users a month

8. Personal
Experience

9. Benefit
• Fast coding
• Cleaner code
• Inteporable with existing Java library
• Bye Bye NPE (Null Pointer Exception)
• Convert Java to Kotlin

10. Pro Tips
• Use @Parcelize
• Add Android KTX (Kotlin Extension)
• Nice to try using Kotlin + Rx + Lambda
• Bye Bye NPE (Null Pointer Exception)

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Ahmad Arif Faizin
0857 4048 2440
@arif_faizin