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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

Introducing the model-view-controller pattern

The phrases model, view, and controller reflect the separation of the different parts of our app into distinct sections, called layers. Android apps commonly use the model-view-controller pattern. A pattern is simply a recognized way to structure code and other application resources, such as layout files, images, and databases.

Patterns are useful to us because, by conforming to a pattern, we can be more confident that we are doing things right, and will be less likely to have to undo lots of hard work because we have coded ourselves into an awkward situation.

There are many patterns in computer science, but just an understanding of the MVC pattern will be enough to create some professionally built Android apps.

We have been partly using MVC already, so let's look at each of the three layers in turn.

Model

The model refers to the data that drives our app and any logic/code that specifically manages it and makes it available to the other layers...

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