book

Android Native Development Kit Cookbook

by Liu Feipeng

March 2013

Intermediate to advanced

346 pages

8h 4m

English

Packt Publishing

Read now

Unlock full access

Support files, eBooks, discount offers and moreWhy Subscribe?Free Access for Packt account holders
What this book covers

Downloading the example codeErrataPiracyQuestions
Introduction
Getting readyHow to do it…How it works…There's more…
Getting readyHow to do it…How it works…There's more…
Getting readyHow to do it…How it works…
Getting readyHow to do it…How it works…There's more…
Getting readyHow to do it…How it works…There's more…
Introduction
Getting readyHow to do it…How it works…
Getting readyHow to do it…How it works…
Getting readyHow to do itHow it works…There's more…
How to do it…How it works…There's more…
Getting readyHow to do it…How it works…
Getting readyHow to do it…How it works…
Getting readyHow to do it…How it works…
Getting readyHow to do it…How it works…
Getting readyHow to do it…How it works…
Getting readyHow to do it…How it works…
Getting readyHow to do it…How it works…There's more...
Getting readyHow to do it…How it works…
Introduction
Getting readyHow to do it…How it works…There's more...Taking screenshots from the command line
Getting readyHow to do it…How it works...
Getting readyHow to do it...How it works…
Getting readyHow to do it…How it works…There's more…More about CPU feature detectionDifferent approaches of building for different cpu features
How to do it…How it works...
How to do it...How it works...
Getting readyHow to do it...How it works...
Getting readyHow to do it...How it works...
Getting readyHow to do it...How it works...There's more...
Introduction
Getting readyHow to do it...How it works...OpenGL ES rendering display through GLSurfaceViewDrawing objects at OpenGL ESColors at OpenGL ESOpenGL ES transformation
Getting readyHow to do it...How it works...
Getting readyHow to do it...How it works...There's more...
Getting readyHow to do it...How it works...OpenGL Shading Language (GLSL)How to use shader:There's more...
Getting readyHow to do it...How it works...Window managementThere's more...
Introduction
Getting readyHow to do it…How it works…There's more…
Getting readyHow to do it…How it works…
Getting readyHow to do it…How it works…
Getting readyHow to do it…How it works…
Getting readyHow to do it…How it works…
Getting readyHow to do it…How it works…There's more…
Introduction
Getting ready…How to do it...How it works...Build with pthreadsThread creationThread termination
How to do it...How it works...Initialize and destroy mutexUsing the mutexThere's more...
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
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
Getting ready...How to do it...How it works...Initialize and destroy a semaphoreUsing a semaphore
Getting ready...How to do it...How it works...Scheduling contention scopeScheduling policy and thread priorityScheduling using nice value/level
Getting ready...How to do it...How it works...Creation and deletion of thread-specific data keySet and get thread-specific data
Introduction
Getting ready…How to do it...How it works...There's more…
Getting ready...How to do it...How it works...
Getting ready...How to do it...How it works...There's more...
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...
Getting ready...How to do it...How it works...Use and build with the OpenMAX AL multimedia library:OpenMAX AL video playbackThere's more....
Introduction
Getting readyHow to do it...How it works...See also
Getting readyHow to do it...How it works...See also
How to do it...How it works...There's more...
How to do it...How it works...
How to do it...How it works...
How to do it...How it works...
Introduction
Getting readyHow to do it...How it works...Understanding the Android.mk files
Getting readyHow to do it...How it works...Porting libpngPorting libseamcarvPorting fusch
How to do it...How it works...
Getting readyHow to do it...How it works...Sending messages from the native code

Content preview from Android Native Development Kit Cookbook

Managing references in JNI

JNI exposes strings, classes, instance objects, and arrays as reference types. The previous recipe introduces the string type. This recipe will cover reference management and the subsequent three recipes will discuss class, object, and arrays respectively.

How to do it…

The following steps create a sample Android project that illustrates reference management in JNI:

Create a project named ManagingReference. Set the package name as cookbook.chapter2. Create an activity named ManagingReferenceActivity. Under the project, create a folder named jni. Refer to the Loading native libraries and registering native methods recipe in this chapter, if you want more detailed instructions.
Create a file named referencetest.c under the ...