2 - Kotlin Android Tutorial | DataModels, Repository Pattern, Kotlin vs Java Syntax, Datasources
Enjoy my teaching style? Looking for a comprehensive introduction to Kotlin, Android, and Programming in general? If so, consider picking up my introductory course to Programming Fundamentals with Kotlin and Android on Udemy; I don't think you'll be disappointed:
https://www.udemy.com/application-pro...
Welcome to part 2 of my Kotlin Android Tutorial. In this lesson, we learn about Kotlin vs Java Syntax, and Koltin keywords such as val, var, data, object, etc. I also share some best practices for designing the backend of an application, using DataModels (POJOs/POKOs), and the Repository Pattern.
Timestamps:
0:00 - Intro
1:21 - How to get the code starting point
3:22 - Package Strucutre/Architecture (I use a blend of package by feature/layer)
5:36 - DataModels vs Data/Model Layer, Kotlin data classes, basic Kotlin syntax
13:40 - Repository (a.k.a. Facade) Pattern in a nutshell
Interfaces Video Link Here:
• Android WTF: Java Interfaces by Example
15:43 - Interfaces for backend/repository, Writing Methods/Functions in Kotlin
21:05 - Implementing Valiator/Calculator, Interface vs Implementation (Asbtract vs Concrete), Kotlin mapTo, Split, and other neat functions
30:15 - Outro
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