Explorig Kotlin Android - IO Extended '19 Hyderabad

The slides for my talk at Google IO Extended 2019 held on 7th July, 2019 in Hyderabad, Pakistan.

Event: https://www.facebook.com/events/2257554364573613/

Transcript

1. Exploring
   Android
   Kotlin
   Wajahat Karim
   Google IO Extended - Hyderabad
   

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2. I am Wajahat Karim
   And I work at Contour Software.
   Hello!
   2
   Coding
   8+ Years Experienced
   Android Developer
   Writing
   Authored 2 Worldwide
   Published Books
   Passion
   Open Source Contributor
   (many Android libraries)
   Community
   AndroidPub, FlutterPub,
   Articles, and Talks
   

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3. Open Source =
   3
   

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4. Kotlin
   Basics 101
   

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5. Why Kotlin?
   5
   Statically Typed
   This means that the type of every
   variable and expression is known at
   compile time.
   Concise
   Drastically reduces the boilerplate
   code that you have been writing in
   other OOP languages like Java.
   Explicit
   Means being specific about your
   design choices and not hiding
   anything from the consumers of code.
   Easy to Learn
   Kotlin has a very low learning
   curve. The basic syntax looks a lot
   like Java.
   Null-Safe
   Avoids the most dreaded
   NullPointerExceptions by supporting
   nullability as part of its type system.
   Interoperable with Java
   You can easily access Java code from
   Kotlin and vice versa.
   

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6. Variables in Kotlin
   6
   

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7. Arrays & Ranges
   7
   

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8. if-else when
   8
   

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9. Loops
   9
   

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10. Null Safety
    10
    

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11. Functions
    11
    

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12. Extension Functions
    12
    More extensions at:
    https://developer.android.com/kotlin/ktx
    

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13. Kotlin in
    Android
    

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14. Kotlin in Android
    14
    Official Support
    Google announced Kotlin as an official programming language
    for developing Android application in Google IO 2016..
    Android KTX
    Google is heavily investing in creating open source extensions
    and APIs in Kotlin to make things easier and convenient for
    Android developers.
    Kotlin First
    Starting this year after Google IO 2019, Android APIs will be
    Kotlin first and will be architectured from Kotlin perspective.
    

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15. Android DevChat
    Pakistan
    15
    Join 100+ community of Pakistani android devs at:
    http://bit.do/pak-android-slack
    

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16. You
    Thank you for attending this
    event.
    Techno Summit
    The event is organized by them.
    https://www.technosummit.org
    Special Thanks
    16
    Google
    After all, its Google powered Google
    IO Extended event.
    Undraw
    All the beautiful illustrations in this
    presentation are from Undraw.
    http://undraw.co
    

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17. Any Questions?
    You can find me at:
    ● https://wajahatkarim.com
    ● github.com/wajahatkarim3
    ● medium.com/@wajahatkarim3
    17
    

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