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Kotlin: El despertar de la fuerza!

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Introducción a Kotlin. Lenguaje de programación alternativo para el desarrollo de aplicaciones Android.
DevFes 2015

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Kotlin: El despertar de la fuerza!

  1. 1. photo Kotlin El despertar de la fuerza Marco Avendaño
  2. 2. GDG El mundo le pertenece a los móviles
  3. 3. GDG Android el más popular https://www.netmarketshare.com Mobile/Tablet Operating System Market Share, October 2015
  4. 4. GDG Android y su actualidad • Android Studio • Gradle • Material Design • ART • Android en todo lugar
  5. 5. GDG Android y su futuro • Administración de la BdD  Realm • Lenguaje de programación  Alternativas JVM
  6. 6. GDG Alternativas de lenguajes JVM • Clojure • Ceylon • Scala • Groovy • Kotlin • Java 7 + Retrolambda
  7. 7. GDG .. ¿Qué hay de Java 8? • Stream API • Expresiones Lambda • Interfaces funcionales • ...
  8. 8. GDG Java 8 y Android https://realm.io/news/droidcon-michael-pardo-kotlin/ Kotlin: A New Hope in a Java 6 Wasteland
  9. 9. GDG Android y Java
  10. 10. Kotlin
  11. 11. GDG ¿Qué es Kotlin? • Open Source (Licencia Apache 2.0) • Versión 1.0 Beta • Funciona sobre la JVM • Alternativa moderna a Java • Compatibilidad con Java • Desarrollado por JetBrains (IntelliJ IDEA)
  12. 12. GDG ¿Por qué Kotlin? • Conciso • Seguro • Versátil • Interoperable
  13. 13. GDG Conciso Crear un POJO con getters, setters, equals(), hashCode(), toString() and copy() en una simple linea:
  14. 14. GDG Seguro Deshacerse de los molestos NullPointerExceptions: The Billion Dollar Mistake
  15. 15. GDG Versátil Lenguaje multi-propósito que le permite construir cualquier tipo de aplicación
  16. 16. GDG Interoperable Interoperabilidad con frameworks y librerías JVM
  17. 17. GDG …y muchas otras cosas cool • Lambdas • Extender clases del sistema o librerías • Data Classes • When Expression • …
  18. 18. GDG ..el despertar de la fuerza http://blog.jetbrains.com/kotlin/2015/11/the-kotlin-language-1-0-beta-is-here/ The Kotlin Language: 1.0 Beta is Here!
  19. 19. GDG ¿Por donde empezar? • Consultando la guía de referencia  https://kotlinlang.org/docs/reference/ • Acceder a su sitio de practica  http://try.kotlinlang.org/
  20. 20. GDG Kotlin’s tryout site
  21. 21. Kotlin + Android
  22. 22. GDG Kotlin para desarrolladores Android • Es muy intuitivo y fácil de usar por los desarrolladores Java • Tiene una total integración con Android Studio
  23. 23. GDG Plugins necesarios • Kotlin • Kotlin Extensions for Android
  24. 24. GDG Instalando plugins (I)
  25. 25. GDG Instalando plugins (II)
  26. 26. GDG Los plugins en acción
  27. 27. GDG Anko el aliado • Anko es una “potente biblioteca” desarrollada por JetBrains. • Su principal objetivo es la generación de diseños UI mediante el uso de código en lugar de XML.
  28. 28. GDG ..uso de Anko
  29. 29. GDG Un ejemplo: aplicación TODO http://www.sitepoint.com/streamline-android-java-code-with-kotlin/ Streamline Android Java Code with Kotlin
  30. 30. GDG Call to Action More info here • https://kotlinlang.org/ • http://antonioleiva.com/kotlin/
  31. 31. thank you GDG
  32. 32. GDG Datos de Contacto marcoviaweb@gmail.com @marcoviaweb https://www.facebook.com/marcoviaweb https://bo.linkedin.com/in/marcoviaweb

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