Android Native Development Kit Cookbook

Feipeng Liu

• Publisher: Packt Publishing
• Year: 2013
• ISBN:
  9781849691505
• Edition: 1
• Topic: Computer Science
• Subtopic: Programming in C
• Index: Computer Science

In Detail

Building Android applications would usually mean that you spend all of your time working in Java. There are however times when this is not the most efficient or best method for the application being built. This is where Android NDK comes in. Android NDK allows the developer to write in Native C/C++, giving you the power to reuse code and libraries and also, in most cases, increase the speed and efficiency of your application.

The "Android Native Development Kit Cookbook" will help you understand the development, building, and debugging of your native Android applications. We will discover and learn JNI programming and essential NDK APIs such as OpenGL ES, and the native application API. We will then explore the process of porting existing libraries and software to NDK. By the end of this book you will be able to build your own apps in NDK apps.

"Android Native Development Kit Cookbook" begins with basic recipes that will help you in the building and debugging of native apps, and JNI programming. The recipes cover various topics of application development with Android NDK such as OpenGL programming and Multimedia programming. We will begin with a simple recipe, Hello NDK, before moving on to cover advanced topics with recipes on OpenGL ES that focus on 2D and 3D graphics, as well as recipes that discuss working with NDK and external APIs. If you are looking for ways to make your application available in Android and take measures to boost your application's performance, then this Cookbook is for you.

Approach

This book is written in a Cookbook style, beginning with recipes which focus on helping developers make their software/application available in Android.

Who this book is for

Android developers who want to learn Android NDK programming, or develop multimedia and games in Android NDK will benefit from this book.

Android Native Development Kit Cookbook

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Table of Contents

Android Native Development Kit Cookbook

Credits

About the Author

About the Reviewers

www.PacktPub.com

Support files, eBooks, discount offers and more

Why Subscribe?

Free Access for Packt account holders

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Downloading the example code

Errata

Piracy

Questions

1. Hello NDK

Introduction

Setting up an Android NDK development environment in Windows

Getting ready

How to do it…

How it works…

There's more…

Setting up an Android NDK development environment in Ubuntu Linux

Getting ready

How to do it…

How it works…

There's more…

Setting up an Android NDK development environment in Mac OS

Getting ready

How to do it…

How it works…

Updating Android NDK

Getting ready

How to do it…

How it works…

There's more…

Writing a Hello NDK program

Getting ready

How to do it…

How it works…

There's more…

2. Java Native Interface

Introduction

Loading native libraries and registering native methods

Getting ready

How to do it…

How it works…

Passing parameters and receiving returns in primitive types

Getting ready

How to do it…

How it works…

Manipulating strings in JNI

Getting ready

How to do it

How it works…

There's more…

Managing references in JNI

How to do it…

How it works…

There's more…

Manipulating classes in JNI

Getting ready

How to do it…

How it works…

Manipulating objects in JNI

Getting ready

How to do it…

How it works…

Manipulating arrays in JNI

Getting ready

How to do it…

How it works…

Accessing Java static and instance fields in the native code

Getting ready

How to do it…

How it works…

Calling static and instance methods from the native code

Getting ready

How to do it…

How it works…

Caching jfieldID, jmethodID, and referencing data to improve performance

Getting ready

How to do it…

How it works…

Checking errors and handling exceptions in JNI

Getting ready

How to do it…

How it works…

There's more...

Integrating assembly code in JNI

Getting ready

How to do it…

How it works…

3. Build and Debug NDK Applications

Introduction

Building an Android NDK application at the command line

Getting ready

How to do it…

How it works…

There's more...

Taking screenshots from the command line

Building an Android NDK application in Eclipse

Getting ready

How to do it…

How it works...

Building an Android NDK application for different ABIs

Getting ready

How to do it...

How it works…

Building Android NDK applications for different CPU features

Getting ready

How to do it…

How it works…

There's more…

More about CPU feature detection

Different approaches of building for different cpu features

Debugging an Android NDK application with logging messages

How to do it…

How it works...

Debugging an Android NDK application with CheckJNI

How to do it...

How it works...

Debugging an Android NDK application with NDK GDB

Getting ready

How to do it...

How it works...

Debugging an Android NDK application with CGDB

Getting ready

How to do it...

How it works...

Debugging an Android NDK application in Eclipse

Getting ready

How to do it...

How it works...

There's more...

4. Android NDK OpenGL ES API

Introduction

Drawing 2D Graphics and applying transforms with the OpenGL ES 1.x API

Getting ready

How to do it...

How it works...

OpenGL ES rendering display through GLSurfaceView

Drawing objects at OpenGL ES

Colors at OpenGL ES

OpenGL ES transformation

Drawing 3D graphics and lighting up the scene with the OpenGL ES 1.x API

Getting ready

How to do it...

How it works...

Mapping texture to 3D objects with the OpenGL ES 1.x API

Getting ready

How to do it...

How it works...

There's more...

Drawing 3D graphics with the OpenGL ES 2.0 API

Getting ready

How to do it...

How it works...

OpenGL Shading Language (GLSL)

How to use shader:

There's more...

Displaying graphics with EGL

Getting ready

How to do it...

How it works...

Window management

There's more...

5. Android Native Application API

Introduction

Creating a native activity with the native_activity.h interface

Getting ready

How to do it…

How it works…

There's more…

Creating a native activity with the Android native app glue

Getting ready

How to do it…

How it works…

Managing native windows at Android NDK

Getting ready

How to do it…

How it works…

Detecting and handling input events at Android NDK

Getting ready

How to do it…

How it works…

Accessing sensors at Android NDK

Getting ready

How to do it…

How it works…

Managing assets at Android NDK

Getting ready

How to do it…

How it works…

There's more…

6. Android NDK Multithreading

Introduction

Creating and terminating native threads at Android NDK

Getting ready…

How to do it...

How it works...

Build with pthreads

Thread creation

Thread termination

Synchronizing native threads with mutex at Android NDK

How to do it...

How it works...

...

Table of contents

• Android Native Development Kit Cookbook