Android JNI NDK Eclipse 设定(避免出现重复build的设定方法)

When editing native JNI code in an Android project using the
Android NDK you may configure Eclipse to automatically rebuild your project when editing native code, just as it does for java. The below steps shows how to perform the necessary configuration (note that this requires revision 4 or later of the NDK - previous
revisions does not contain the necessary

ndk-build

binary):

Start by right clicking on your android project (named hello-neon in the below screenshots) with JNI resources, and select

Properties

. In the resulting dialog, choose the

Builders

entry in the list to the left and press the

New...

button:



A new dialog will open presenting a list of builder types. Select the

Program

type and press the

OK

button:



In the

Main

tab, fill in the following:

Name: NDK Builder Location: /opt/android-ndk/ndk-build (or wherever your ndk-build binary is). You may use a variable as in ${system_property:user.home}/lib/android-ndk/ndk-build
Working Directory: ${workspace_loc:/hello-neon} (replace hello-neon with your project name. Press the

Browse Workspace...

button to select it graphically)
The result should look something like the below:



Now continue with the refresh tab. Make sure the two checkboxes

Refresh resources upon completion.

and

Recursively include sub-folders

are checked. Choose the

Specific resources

radio button and press the

Specify Resources...

button:



Since the ndk-build process will generate files in the lib folder, we want Eclipse to discover changes made there without having to refresh manually. So select the lib folder in the project (create one if necessary) and press the

Finish

button:



Now skip the

Environment

tab and go to the final

Build Options

tab. Make sure the

Run the builder: During auto builds

checkbox is checked.



Since the NDK build only needs to happen when editing files in the

jni

folder, check that folder and press the

Finish

button.



Now finally press

OK

in the builder configuration dialog - the new NDK builder should now be up and running. Try editing any file in the

jni

folder and check that the

Console

view produces output from the build process:



http://mobilepearls.com/labs/ndk-builder-in-eclipse/