Android Studio 3 includes complete support for programming with Kotlin. In previous tips, you learn about how to create simple classes in Kotlin. Now learn about how to create entity classes for the Room persistence library in Kotlin.
- [Instructor] Android Studio 3 includes complete support…for programming with Kotlin.…I've described how to create simple classes in Kotlin…in previous tips.…Now I'll show you how to create entity classes…for the Room persistence library in Kotlin.…In the database definition for this application,…my Entity class for the notes table…is declared in this Java class.…The name of the class is Note.…And it has an Entity annotation…that sets the table name as notes.…It has three fields that represent the columns in the table:…an integer named noteId, that's the primary key,…a noteDate value, and a string value.…
There's a no arguments constructor method…that's required by Room,…a constructor method I can use…to create a new instance of the class easily,…getters and setters for each of the fields,…and a custom ToString method for debugging.…Now I'm going to create a Kotlin version of that class.…I'll go to my model package…and create a new Kotlin file or class.…I'll name it NoteKt, for Kotlin.…And I'll set the kind as Class.…
Skill Level Intermediate
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Android App Development: Communicating with the Userwith Joe Marini1h 12m Intermediate
Building Android Apps with Cloud Serviceswith Albert Lo2h 37m Intermediate
Android App Development: Data Persistence Librarieswith Annyce Davis4h 52m Intermediate
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