Android Native Development Kit Cookbook: Create Android apps using Native C/C++ with the expert guidance contained in this cookbook. From basic routines to advanced multimedia development, it helps you harness the full power of Android NDK.

Start Eclipse, select File | New | Android Project. Enter the value for Project Name as NativeMethodsRegister. Select Create new project in workspace. Then, click on Next.

In the next window, select the latest version of Android SDK, then click on Next to go to the next window.

Specify the package name as cookbook.chapter2. Select the Create Activity checkbox, and specify the name as NativeMethodsRegisterActivity. Set the value for Minimum SDK as 5 (Android 2...

Create a project named PassingPrimitive. Set the package name as cookbook.chapter2. Create an activity named PassingPrimitiveActivity. Under this project, create a folder named jni. Please refer to the Loading native libraries and registering native methods recipe in this chapter if you want more detailed instructions.

Add a file named primitive.c under the jni folder...

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 jni folder, then implement the localReference, globalReference, weakReference, and referenceAssignmentAndNew methods. This is shown in the following code snippet:

JNIEXPORT void JNICALL Java_cookbook_chapter2_ManagingReferenceActivity_localReference...

Create a project named ClassManipulation. Set the package name as cookbook.chapter2. Create an activity named ClassManipulationActivity. Under the project, create a folder named jni. Refer to the Loading native libraries and registering native methods recipe of this chapter if you want more detailed instructions.

Create a file named classtest.c under the jni folder, then implement the findClassDemo, findClassDemo2, GetSuperclassDemo, and IsAssignableFromDemo methods. We can...

Create a project named ObjectManipulation. Set the package name as cookbook.chapter2. Create an activity named ObjectManipulationActivity. Under the project, create a folder named jni. Please refer to the Loading native libraries and registering native methods recipe in this chapter, if you want more detailed instructions.

Create a file named objecttest.c under the jni folder, then implement the AllocObjectDemo, NewObjectDemo, NewObjectADemo, NewObjectVDemo, GetObjectClassDemo, and IsInstanceOfDemo methods...

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

Create a file named arraytest.c under the jni folder, then implement the GetArrayLengthDemo, NewObjectArrayDemo, NewIntArrayDemo, GetSetObjectArrayDemo, GetReleaseIntArrayDemo, GetSetIntArrayRegionDemo, and GetReleasePrimitiveArrayCriticalDemo native methods.

Modify ArrayManipulationActivity...

Create a project named AccessingFields. Set the package name as cookbook...

Create a project named CallingMethods. Set the package name as cookbook.chapter2. Create an activity named CallingMethodsActivity...

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 detailed instructions.

Create a file named cachingtest.c under the jni folder, then implement the InitIDs, CachingFieldMethodIDDemo1, CachingFieldMethodIDDemo2, and CachingReferencesDemo methods.

Modify the CachingActivity.java file by adding code...

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

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

Create a file named assemblyinjni.c under the jni folder, then implement the InlineAssemblyAddDemo method.

Create a file named tmp.c under the jni folder...