How can I add .so files to an android library project using gradle 0.7+

Question

Project structure:

App project --> depends on Library project

Library Project has a folder for the compiled jni libs

jniLibs.srcDirs = ['libs'] 

And I've tried adding the following to the android element of the build.gradle as per the example app https://android.googlesource.com/platform/tools/build/+/2e1f7810edd76d92cee8d3e06bc4dec0c288adea/tests/ndkSanAngeles/build.gradle however android library projects do not support productFlavours and as such the assemble fails with "Could not find method productFlavors() for arguments [dghdhd] on project"

productFlavors {     x86 {         ndk {             abiFilter "x86"         }     }     arm {         ndk {             abiFilters "armeabi-v7a", "armeabi"         }     } } 

Is there a way to add ndk support to an android library project?

Answer 1

In the end I didnt need to use product flavours.

For the library project I added the following:

android {     sourceSets {         main {             jniLibs.srcDirs = ['libs']         }     }         } 

The libs folder had a folder inside called "armeabi-v7a" and as this is my only target it worked a treat.

The ndk files (.so) are propagated into the android project that is using the android library project.

Answer 2

Example with new android experimental gradle plugin.

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Requirements:

• Android Studio 1.5+
• gradle-2.10
• gradle-experimental:0.6.0-alpha5

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1) You could simply put all shared native libraries in the main / jniLibs folder, by default.

Project structure

root folder / android project

root folder / android_project / app / src / main / jniLibs / x86

root folder / android_project / app / src / main / jniLibs / armeabi-v7a

root folder / android_project / app / src / main / jniLibs / ...

Gradle will automatically upload them to the device.

Then you could load the library in an application.

static {     System.loadLibrary("mylibrary"); } 

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2) You could also put all shared native libraries in the custom location.

Example with a path to the bin / android / Debug directory.

In that case you should manually set the libraries location in the build.gradle file.

Project structure

root folder / android project

root folder / bin / android / Debug / jniLibs / x86

root folder / bin / android / Debug / jniLibs / armeabi-v7a

root folder / bin / android / Debug / jniLibs / ...

root folder / android_project / app / build.gradle

apply plugin: 'com.android.model.application'  model {     android {         sources {             main {                 jni {                     source {                         srcDirs = []                     }                 }                  jniLibs {                     source {                         srcDirs "/../../bin/android/Debug/jniLibs"                     }                 }             }         }     } }