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Kotlin Programming By Example

By : Iyanu Adelekan

3.3 (4)

Buy this Book

Kotlin Programming By Example

3.3 (4)

By: Iyanu Adelekan

Buy this Book

Overview of this book

Kotlin greatly reduces the verbosity of source code. With Google having announced their support for Kotlin as a first-class language for writing Android apps, now's the time learn how to create apps from scratch with Kotlin Kotlin Programming By Example takes you through the building blocks of Kotlin, such as functions and classes. You’ll explore various features of Kotlin by building three applications of varying complexity. For a quick start to Android development, we look at building a classic game, Tetris, and elaborate on object-oriented programming in Kotlin. Our next application will be a messenger app, a level up in terms of complexity. Before moving onto the third app, we take a look at data persistent methods, helping us learn about the storage and retrieval of useful applications. Our final app is a place reviewer: a web application that will make use of the Google Maps API and Place Picker. By the end of this book, you will have gained experience of of creating and deploying Android applications using Kotlin.

Preface

Who this book is for

What this book covers

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Free Chapter

The Fundamentals

Getting started with Kotlin

The fundamentals of the Kotlin programming language

Advantages of Kotlin

Developing Android applications with Kotlin

Fundamentals of the web

Summary

Building an Android Application – Tetris

Android – an overview

Understanding Tetris

Creating the user interface

The app manifest

Summary

Implementing Tetris Logic and Functionality

Implementing the Tetris gameplay

Introduction to Model-View-Presenter (MVP)

Summary

Designing and Implementing the Messenger Backend with Spring Boot 2.0

Designing the messenger API

Implementing the messenger backend

Deploying the messenger API to AWS

Summary

Building the Messenger Android App – Part I

Developing the Messenger app

Summary

Building the Messenger Android App – Part II

Creating the Main UI

Creating the Chat UI

Creating the application's settings activity

Android application testing

Performing background operations

Summary

Storing Information in a Database

Working with internal storage

Working with external storage

Network storage

Working with a SQLite database

Working with content providers

Summary

Securing and Deploying an Android App

Securing an Android application

Launching and publishing your Android application

Summary

Creating the Place Reviewer Backend with Spring

The MVC design pattern

Designing and implementing the Place Reviewer backend

Managing Spring application logs with ELK

Summary

Implementing the Place Reviewer Frontend

Creating views with Thymeleaf

Spring application testing

Summary

What next?

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Implementing Tetris Logic and Functionality

In the previous chapter, we embarked on the development of the classic game Tetris. We determined the layout requirements of our application and implemented the layout elements we identified. In the process, we created two activities for the application: MainActivity and GameActivity. We also implemented the basic characteristics and behaviors of the views, but nothing pertaining to the core gameplay of the app was done. In this chapter, we are going to implement this gameplay. Over the course of this chapter, you will learn about the following topics: