Automatically copy .so files from NDK library project?

Issue

Using Android Studio 1.2.1.1 with Gradle 1.2.3. I have an NDK library project A that produces a number of .so files in its own libs folder. Though, I cannot see the reference to this folder anywhere in the build.gradle file.

When I reference library A from my app MyApp I would expect the .so files to be copied to MyApp/src/main/jniLibs, but they aren't. Do I have to manually copy these files every time I make a change in the A library?

How can I automate this step?

Solution

I does not know if ther is a way to have you .so files copied as you want whiout wirtting anything.

But you could have gradle doing it for you. In your gradle file, add a task that copy those .so files where you need them to be.

android {
    ...
    sourceSets.main {
        jni.srcDirs = []
        jniLibs.srcDir 'src/main/libs'
    }

    //copying files
    task copyNativeLib(type: Exec, description: 'Copy native file') {
        commandLine 'cp <path_of_so_files> src/main/libs'
    }

    //add dependencies
    tasks.withType(JavaCompile) {
        compileTask -> compileTask.dependsOn copyNativeLib
    }
}

Or maybe just

android {
    ...
    sourceSets.main {
        jni.srcDirs = []
        jniLibs.srcDir '<path_to_your_so_files>'
    }
}

Answered By - sonic