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Android Programming with Kotlin for Beginners

You're reading from   Android Programming with Kotlin for Beginners Build Android apps starting from zero programming experience with the new Kotlin programming language

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Product type Paperback
Published in Apr 2019
Publisher Packt
ISBN-13 9781789615401
Length 698 pages
Edition 1st Edition
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Author (1):
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John Horton John Horton
Author Profile Icon John Horton
John Horton
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Table of Contents (31) Chapters Close

Preface 1. Getting Started with Android and Kotlin FREE CHAPTER 2. Kotlin, XML, and the UI Designer 3. Exploring Android Studio and the Project Structure 4. Getting Started with Layouts and Material Design 5. Beautiful Layouts with CardView and ScrollView 6. The Android Lifecycle 7. Kotlin Variables, Operators, and Expressions 8. Kotlin Decisions and Loops 9. Kotlin Functions 10. Object-Oriented Programming 11. Inheritance in Kotlin 12. Connecting Our Kotlin to the UI and Nullability 13. Bringing Android Widgets to Life 14. Android Dialog Windows 15. Handling Data and Generating Random Numbers 16. Adapters and Recyclers 17. Data Persistence and Sharing 18. Localization 19. Animations and Interpolations 20. Drawing Graphics 21. Threads and Starting the Live Drawing App 22. Particle Systems and Handling Screen Touches 23. Android Sound Effects and the Spinner Widget 24. Design Patterns, Multiple Layouts, and Fragments 25. Advanced UI with Paging and Swiping 26. Advanced UI with Navigation Drawer and Fragment 27. Android Databases 28. A Quick Chat Before You Go A. Other Book You May Enjoy Index

Basic classes app and using the init block


You can get the completed code for this app in the code download. It is in the Chapter10/Basic Classes folder. But it is most useful to read on to create your own working example.

We will create a few different classes using what we have learned throughout this chapter to put the theory in to practice. We will also see our first example of how classes can interact with each other by passing a class as a parameter into the function of another class. We know how to do this in theory already, we just haven't seen it in practice yet.

We will also see another way to initialize our data when the class is first instantiated by using an init block.

We will create a small app that plays with the idea of simulating ships, docks, and sea battles.

Note

The output for the apps in this chapter and the next will be just text to the logcat window. In Chapter 12, Connecting our Kotlin to the UI and Nullability, we will bring together everything we learned in the first...

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