Book Image

Android Programming with Kotlin for Beginners

By : John Horton
5 (1)
Book Image

Android Programming with Kotlin for Beginners

5 (1)
By: John Horton

Overview of this book

Android is the most popular mobile operating system in the world and Kotlin has been declared by Google as a first-class programming language to build Android apps. With the imminent arrival of the most anticipated Android update, Android 10 (Q), this book gets you started building apps compatible with the latest version of Android. It adopts a project-style approach, where we focus on teaching the fundamentals of Android app development and the essentials of Kotlin by building three real-world apps and more than a dozen mini-apps. The book begins by giving you a strong grasp of how Kotlin and Android work together before gradually moving onto exploring the various Android APIs for building stunning apps for Android with ease. You will learn to make your apps more presentable using different layouts. You will dive deep into Kotlin programming concepts such as variables, functions, data structures, Object-Oriented code, and how to connect your Kotlin code to the UI. You will learn to add multilingual text so that your app is accessible to millions of more potential users. You will learn how animation, graphics, and sound effects work and are implemented in your Android app. By the end of the book, you will have sound knowledge about significant Kotlin programming concepts and start building your own fully featured Android apps.
Table of Contents (33 chapters)
Android Programming with Kotlin for Beginners
Contributors
Preface
Index

Chapter 4. Getting Started with Layouts and Material Design

We have already seen the Android Studio UI designer, as well as a little bit more of Kotlin in action. In this hands-on chapter, we will build three more layouts – still quite simple, yet a step up from what we have done so far.

Before we get to the hands-on part, we will have a quick introduction to the concept of Material Design.

We will look at another type of layout, called LinearLayout, and walk through it, using it to create a usable UI. We will take things a step further using ConstraintLayout, both to understand constraints and to design more complex and precise UI designs. Finally, we will meet the TableLayout to lay data out in an easily readable table.

We will also write some Kotlin code to switch between our different layouts within one app/project. This is the first major app that links together multiple topics into one neat parcel. The app is called Exploring Layouts.

In this chapter, we will cover the following topics...