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Android Programming for Beginners

Android Programming for Beginners - Fourth Edition

By : John Horton
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Android Programming for Beginners

Android Programming for Beginners

By: John Horton

Overview of this book

Modern Android development has evolved rapidly, with Kotlin and Jetpack Compose becoming the standard tools for building powerful mobile applications. Android Programming for Beginners provides a practical introduction for readers with little or no coding experience. Rather than overwhelming you with theory, the book teaches concepts gradually through hands-on experimentation and small, focused apps that reinforce core programming fundamentals. You will begin by learning Kotlin essentials including variables, loops, functions, lambdas, collections, and object-oriented programming before moving into Android Studio and Jetpack Compose. As your skills grow, you will create interactive projects ranging from UI layouts and games to multimedia and database-driven applications. Along the way, you will explore Android development techniques such as state management, navigation, Material Design, Room databases, Canvas drawing, and responsive layouts. To help future-proof your workflow, each chapter also includes optional AI-assisted programming exercises that show how modern coding tools can support experimentation, accelerate development, and deepen understanding. By the end of the book, you will have built a portfolio of Android apps and gained the confidence to continue toward advanced mobile development projects independently.
Table of Contents (36 chapters)
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1
Part 1: Kotlin & Jetpack Compose Basics
11
Part 2: Data Structures, Kotlin Fundamentals & More Advanced UIs
20
Part 3: Object-Oriented Programming & Building More Advanced Apps
29
Part 4: Vibe Coding & Learning with AI
34
Other Books You May Enjoy
35
Index

Summary

We learned why lambdas are helpful because they make our code more readable and succinct. Lambdas provide the flexibility to define code in one function and execute it in another, while still retaining access to the scope of the function where the lambda is defined.

We have looked at multiple examples to get our heads around the syntax of lambdas and learned that when a lambda has just one parameter, and we don't name it ourselves, we can refer to the parameter as it. We concluded the chapter by looking at nesting lambdas.

There is much more we can do with lambdas, but we now have the basic syntax under our belts and are ready to move on. We will see more lambda-related examples, including receivers and the this keyword, chaining lambdas, and especially lots of examples using lambdas with Kotlin's scope functions and collection functions in Chapter 15.

In the next chapter, we will cover a relatively simple but still vital topic of nullability.

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Tech Concepts
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Programming languages
73
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Android Programming for Beginners
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