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Android - Introduction à kotlin

Kotlin is here! Google officialise le support du langage Kotlin pour le dévelloppement d'application Android, à la conférence Google I/O (17-19 mai 2017). Cette présentation donne des éléments de réponses à la question Pourquoi Kotlin ?. Aussi, ce langage est décrit en bref. Puis, le support de Kotlin dans Android Studio est précisé en quelques points. Enfin, quand va sortir AS3 en stable ? Retrouvez la présentation en vidéo : https://www.youtube.com/watch?v=mrJmVjsJlYU&t

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Android & Kotlin
Macha DA COSTA
macha@chillcoding.com
CHILLCODING
Work is Better at the Beach.
! Android : Introduction à Kotlin
 I/O # 17-19 Mai 2017
$ Annonce du langage Kotlin
 Pourquoi Kotlin ?
% Kotlin en bref
♥ Android et Kotlin
# Et après ?
! Android : Introduction à Kotlin
! Android : Introduction à Kotlin
 Pourquoi Kotlin ?
' Mais pourquoi
est-il
aussi méchant ?
' Parce queeeeeee !!!
! Android : Introduction à Kotlin
 Pourquoi Kotlin ?
! ♥+ =
! Android : Introduction à Kotlin
 Pourquoi Kotlin ?
 JVM  JVM
* .java
 JVM  JVM
+ Le concept de Java

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Android - Introduction à kotlin

  • 1. Android & Kotlin Macha DA COSTA macha@chillcoding.com CHILLCODING Work is Better at the Beach.
  • 2. ! Android : Introduction à Kotlin  I/O # 17-19 Mai 2017 $ Annonce du langage Kotlin
  • 3.  Pourquoi Kotlin ? % Kotlin en bref ♥ Android et Kotlin # Et après ? ! Android : Introduction à Kotlin
  • 4. ! Android : Introduction à Kotlin  Pourquoi Kotlin ? ' Mais pourquoi est-il aussi méchant ? ' Parce queeeeeee !!!
  • 5. ! Android : Introduction à Kotlin  Pourquoi Kotlin ? ! ♥+ =
  • 6. ! Android : Introduction à Kotlin  Pourquoi Kotlin ?  JVM  JVM * .java  JVM  JVM + Le concept de Java
  • 7. ! Android : Introduction à Kotlin  Pourquoi Kotlin ? + L’histoire de Java , - # 1995 # 2009 . ! # 2015
  • 8. ! Android : Introduction à Kotlin  Pourquoi Kotlin ? + Google copierait Apple ? ♥ ♥♥ !
  • 9.  iOS : Objective-C vers Swift ! Android : Introduction à Kotlin  Pourquoi Kotlin ? # WWDC 2014
  • 10. ! Android : Introduction à Kotlin % Kotlin en bref
  • 11. ! Android : Introduction à Kotlin % Kotlin en bref 0 Langage clair et concis ; 1 2 getter/setter Log.i(TAG, "my width is $mWidth") titi.sayYoTo(toto) 1 infix fun User.sayYo(u:User){…} titi sayYoTo toto 0 Affranchissement du NullPointerException 0 Conversion de type val width = 0 0 Déclaration simplifié int x; 1 var x static final String blabla 1 val blabla
  • 12. ! Android : Introduction à Kotlin ♥ Android et Kotlin
  • 13. ! Android : Introduction à Kotlin ♥ Android et Kotlin 0 Cohabitation Java & Kotlin 0 Conversion automatique .java : Ctrl C 1 .kt : Ctrl V ‘Code’ > ‘Convert Java File to Kotlin File’ (Command + Option + Shift + K)
  • 14. ! Android : Introduction à Kotlin # Et après ? # Historique des versions Android Version API Répartition Avril 2009 : Cupcake 1.5 3 0,0 % Septembre 2009 : Donut 1.6 4 0,0 % Octobre 2009 : Eclair 2.1 7 0,0 % Mai 2010 : Froyo 2.2 8 0,0 % Décembre 2010 : Gingerbread 2.3 10 0,8 % Février 2011 : Honeycomb 3.X 13 0,0 % Octobre 2011 : Ice Cream Sandwich 4.0 15 0,8 % Juin 2012 : Jelly Bean 4.1 18 6,8 % Octobre 2013 : KitKat 4.4 20 18,1 % Octobre 2014 : Lollipop 5.1 21 30,8 % Octobre 2015 : Marshmallow 6.0 23 31,2 % Octobre 2016 : Nougat 7.0 24 8,9 %
  • 15. ! Android : Introduction à Kotlin # Et après ? Android Studio 3 Octobre 2017 ? Orange Cake ?
  • 16. TO IMPROVE IS TO CHANGE TO BE PERFECT IS TO CHANGE OFTEN - Winston Churchill
  • 17. Merci pour votre attention ! Recevez des news Chill via la Newsletter de CHILLCODING ! Retrouvez cette présentation en vidéo 3 4 macha@chillcoding.com + ChillCoding 6 @MachaDaCosta 7 ChillCoding 8 ChillCoding Des questions ?
  • 18. Sources # Pourquoi Kotlin ? • Apple : la fin d’Objective-C au profit de SWIFT ? • Swift is like Kotlin • Langage Java • API Java : Google a enfreint les brevets d’Oracle, selon la Cour Suprême # Kotlin en bref • Kotlin: pourquoi ce nouveau langage est une bonne nouvelle • Introduction to Kotlin Google I/O '17 • Kotlin it's the little things • Android Development with Kotlin # Android et Kotlin • Android Studio 3.0 Canary • Kotlin - Official Site • developer.android: Get Started with Kotlin on Android