NDK: how include *.so files in AndroidStudio

Question

I have libs jar and *.so. I created Eclipse project as in tutorial (for this libs). I am now doing project in Android Studio, but system can\'t find *.so files. I make how i

Answer 1

Create folder name "jniLibs" inside src/main folder and add All the folders containing your "*.so" file and sync and run your application. No other steps required.

Answer 2

Current Solution

Create the folder project/app/src/main/jniLibs, and then put your *.so files within their abi folders in that location. E.g.,

project/
├──libs/
|  └── *.jar       <-- if your library has jar files, they go here
├──src/
   └── main/
       ├── AndroidManifest.xml
       ├── java/
       └── jniLibs/ 
           ├── arm64-v8a/                       <-- ARM 64bit
           │   └── yourlib.so
           ├── armeabi-v7a/                     <-- ARM 32bit
           │   └── yourlib.so
           └── x86/                             <-- Intel 32bit
               └── yourlib.so

Deprecated solution

Add both code snippets in your module gradle.build file as a dependency:

compile fileTree(dir: "$buildDir/native-libs", include: 'native-libs.jar')
How to create this custom jar:

task nativeLibsToJar(type: Jar, description: 'create a jar archive of the native libs') {
    destinationDir file("$buildDir/native-libs")
    baseName 'native-libs'
    from fileTree(dir: 'libs', include: '**/*.so')
    into 'lib/'
}

tasks.withType(JavaCompile) {
    compileTask -> compileTask.dependsOn(nativeLibsToJar)
}

---

---

Answer 3

Three options:

One

Copy yours *.SO libraries on your libs folder and put that on Build.gradle:

dependencies
        {
    compile fileTree(include: ['*.jar'], dir: 'libs')
}

Two

Make a new folder on src/main/jniLibs and write that on your Build.gradle:

android {
    //Another code 
    sourceSets {
        main {         
            jniLibs.srcDirs = ['src/main/jnilibs']          
        }
        //Another code 
    }//sourceSets tag close
}//Android tag close

There

Make a new folder on src/main/jniLibs and write that on your Build.gradle:

//Another code....

    dependencies
    {
          compile fileTree(dir: "$buildDir/native-libs", include: 'native-libs.jar')
    }//end dependencies


    task nativeLibsToJar(type: Jar, description: 'create a jar archive of the native libs') {
        destinationDir file("$buildDir/native-libs")
        baseName 'native-libs'
        from fileTree(dir: 'src/main/jnilibs', include: '**/*.so')
        into 'lib/'
    }

    tasks.withType(JavaCompile)
     {
          compileTask -> compileTask.dependsOn(nativeLibsToJar)
     }

Answer 4

You need to put your .so files inside a folder named lib (it's not libs and should be lib). It should be in the same structure it should be in the APK file.

Structure

Project:
|--lib:
|--|--armeabi:
|--|--|--.so files.

Then an armeabi folder where insert all .so files. Then zip the folder into a .zip.Rename the .zip file into armeabi.jar and add the line compile fileTree(dir: 'libs', include: '*.jar') into dependencies {} in the gradle's build file.

For more info and alternate method please see This answer and This answer