Kotlin for Android App Development

Contents

Listings

Foreword

Preface

Acknowledgments

About the Author

I: Learning Kotlin

1 Introducing Kotlin

What Is Kotlin?

Goals and Language Concepts

Why Use Kotlin on Android?

Java on Android

Kotlin on Android

Kotlin versus Java 8

Tool Support and Community

Business Perspective

Who’s Using Kotlin?

Summary

2 Diving into Kotlin

Kotlin REPL

Variables and Data Types

Variable Declarations

Basic Data Types

Type Inference

Conditional Code

If and When as Statements

Conditional Expressions

Loops and Ranges

While Loops

For Loops

Functions

Function Signatures

Shorthand for Single-Expression Functions

Main Function

Default Values and Named Parameters

Extension Functions

Infix Functions

Operator Functions

Null Safety

Nullable Types

Working with Nullables ...