book

Android Native Development Kit Cookbook

Name: Android Native Development Kit Cookbook
Author: Liu Feipeng
ISBN: 9781849691505

by Liu Feipeng

March 2013

Intermediate to advanced

346 pages

8h 4m

English

Packt Publishing

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Android Native Development Kit Cookbook
Table of Contents
Android Native Development Kit Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Support files, eBooks, discount offers and moreWhy 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 codeErrataPiracyQuestions
1. Hello NDK
Introduction
Setting up an Android NDK development environment in Windows
Getting readyHow to do it…How it works…There's more…
Setting up an Android NDK development environment in Ubuntu Linux
Getting readyHow to do it…How it works…There's more…
Setting up an Android NDK development environment in Mac OS
Getting readyHow to do it…How it works…
Updating Android NDK
Getting readyHow to do it…How it works…There's more…
Writing a Hello NDK program
Getting readyHow to do it…How it works…There's more…
2. Java Native Interface
Introduction
Loading native libraries and registering native methods
Getting readyHow to do it…How it works…
Passing parameters and receiving returns in primitive types
Getting readyHow to do it…How it works…
Manipulating strings in JNI
Getting readyHow to do itHow it works…There's more…
Managing references in JNI
How to do it…How it works…There's more…
Manipulating classes in JNI
Getting readyHow to do it…How it works…
Manipulating objects in JNI
Getting readyHow to do it…How it works…
Manipulating arrays in JNI
Getting readyHow to do it…How it works…
Accessing Java static and instance fields in the native code
Getting readyHow to do it…How it works…
Calling static and instance methods from the native code
Getting readyHow to do it…How it works…
Caching jfieldID, jmethodID, and referencing data to improve performance
Getting readyHow to do it…How it works…
Checking errors and handling exceptions in JNI
Getting readyHow to do it…How it works…There's more...
Integrating assembly code in JNI
Getting readyHow to do it…How it works…
3. Build and Debug NDK Applications
Introduction
Building an Android NDK application at the command line
Getting readyHow to do it…How it works…There's more...Taking screenshots from the command line
Building an Android NDK application in Eclipse
Getting readyHow to do it…How it works...
Building an Android NDK application for different ABIs
Getting readyHow to do it...How it works…
Building Android NDK applications for different CPU features
Getting readyHow to do it…How it works…There's more…More about CPU feature detectionDifferent 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 readyHow to do it...How it works...
Debugging an Android NDK application with CGDB
Getting readyHow to do it...How it works...
Debugging an Android NDK application in Eclipse
Getting readyHow 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 readyHow to do it...How it works...OpenGL ES rendering display through GLSurfaceViewDrawing objects at OpenGL ESColors at OpenGL ESOpenGL ES transformation
Drawing 3D graphics and lighting up the scene with the OpenGL ES 1.x API
Getting readyHow to do it...How it works...
Mapping texture to 3D objects with the OpenGL ES 1.x API
Getting readyHow to do it...How it works...There's more...
Drawing 3D graphics with the OpenGL ES 2.0 API
Getting readyHow to do it...How it works...OpenGL Shading Language (GLSL)How to use shader:There's more...
Displaying graphics with EGL
Getting readyHow to do it...How it works...Window managementThere's more...
5. Android Native Application API
Introduction
Creating a native activity with the native_activity.h interface
Getting readyHow to do it…How it works…There's more…
Creating a native activity with the Android native app glue
Getting readyHow to do it…How it works…
Managing native windows at Android NDK
Getting readyHow to do it…How it works…
Detecting and handling input events at Android NDK
Getting readyHow to do it…How it works…
Accessing sensors at Android NDK
Getting readyHow to do it…How it works…
Managing assets at Android NDK
Getting readyHow 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 pthreadsThread creationThread termination
Synchronizing native threads with mutex at Android NDK
How to do it...How it works...Initialize and destroy mutexUsing the mutexThere's more...
Synchronizing native threads with conditional variables at Android NDK
How to do it...How it works...Initialize and destroy conditional variablesUsing the conditional variable:There's more...Conditional variable attributes functionsTimed conditional variable functions
Synchronizing native threads with reader/writer locks at Android NDK
Getting ready...How to do it...How it works...Initialize and destroy a reader/writer lockUsing a reader/writer lockThere's more...Timed read/write lock and trylockReader/writer lock attribute functions
Synchronizing native threads with semaphore at Android NDK
Getting ready...How to do it...How it works...Initialize and destroy a semaphoreUsing a semaphore
Scheduling native threads at Android NDK
Getting ready...How to do it...How it works...Scheduling contention scopeScheduling policy and thread priorityScheduling using nice value/level
Managing data for native threads at Android NDK
Getting ready...How to do it...How it works...Creation and deletion of thread-specific data keySet and get thread-specific data
7. Other Android NDK API
Introduction
Programming with the jnigraphics library in Android NDK
Getting ready…How to do it...How it works...There's more…
Programming with the dynamic linker library in Android NDK
Getting ready...How to do it...How it works...
Programming with the zlib compression library in Android NDK
Getting ready...How to do it...How it works...There's more...
Programming audio with the OpenSL ES audio library in Android NDK
Getting ready...How to do it...How it works...Object creationChanging states of objectsUse and build with OpenSL ES Audio libraryOpenSL ES audio recordingOpenSL ES audio playbackThere's more...
Programming with the OpenMAX AL multimedia library in Android NDK
Getting ready...How to do it...How it works...Use and build with the OpenMAX AL multimedia library:OpenMAX AL video playbackThere's more....
8. Porting and Using the Existing Libraries with Android NDK
Introduction
Porting a library as a shared library module with the Android NDK build system
Getting readyHow to do it...How it works...See also
Porting a library as a static library module with the Android NDK build system
Getting readyHow to do it...How it works...See also
Porting a library with its existing build system using the Android NDK toolchain
How to do it...How it works...There's more...
Using a library as a prebuilt library
How to do it...How it works...
Using a library in multiple projects with import-module
How to do it...How it works...
Porting a library that requires RTTI, exception, and STL support
How to do it...How it works...
9. Porting an Existing Application to Android with NDK
Introduction
Porting a command-line executable to Android with an NDK build system
Getting readyHow to do it...How it works...Understanding the Android.mk files
Porting a command-line executable to Android with an NDK standalone compiler
Getting readyHow to do it...How it works...Porting libpngPorting libseamcarvPorting fusch
Adding GUI to a ported Android app
How to do it...How it works...
Using background threads at porting
Getting readyHow to do it...How it works...Sending messages from the native code
Index

Content preview from Android Native Development Kit Cookbook

Caching jfieldID, jmethodID, and referencing data to improve performance

This recipe covers caching in Android JNI, which can improve the performance of our native code.

Getting ready

You should make sure you've read the following recipes before going through this recipe:

Accessing Java static and instance fields in native code
Calling static and instance methods from native code

How to do it…

The following steps detail how to build a sample Android application that demonstrates caching in JNI:

Create a project named Caching. Set the package name as cookbook.chapter2. Create an activity named CachingActivity. Under the project, create a folder named jni. Refer to the Loading native libraries and registering native methods recipe of this chapter for more ...

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