Jni Folder In Android Studio

I am trying make helloy-jni app in Android Studio and I have exception 06-27 13:17:19.099 12714-12714/com.example.testjni2 E/AndroidRuntime: FATAL EXCEPTION: main ja

Solution 1:

Nowadays there is an easier method than the accepted answer.

All you have to do is create a folder called "jniLibs" under your /src/main directory (ie, /app/src/main/jniLibs) and place your .so files there. It will look like this:

app
   |
   src
      |
     main
        |
        jniLibs
            |
            armeabi
            |   |
            |   your_lib_compiled_for_armeabi.so
            |
            armeabi-v7a
            |   |
            |   your_lib_compiled_for_v7a.so
            |
            x86
            |   |
            |   your_lib_compiled_for_x86.so

Your .so files should be picked up now.

Solution 2:

There is other way to import so to the android project.

1. create the lib dir and armeabi dir like this, and copy so to it. |-project |--lib |----armeabi |------libhello-jni.so
2. zip the dir lib.
3. put the zip to the libs dir of project, and change .zip to .jar.
4. add code to the dependencies part of build.gradle. compile fileTree(dir:'libs', include:'lib.jar')

Solution 3:

add this to your build.gradle:

sourceSets {
    main {
        jniLibs.srcDir 'jniLibs'
    }
}

underneath:

buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
}

Solution 4:

You can add pre built *.so files in Android Studio using gradle 0.7.2+. First create the jniLibs at this location /app/src/main/ location and copy the all the folder with *.so files (armeabi, armeabi-v7a, mips, x86) in the jniLibs.

As Xavier said same here https://groups.google.com/forum/#!msg/adt-dev/nQobKd2Gl_8/ctDp9viWaxoJ

Solution 5:

The gradle build system does not support bundling native libraries at the moment. Check https://groups.google.com/d/msg/adt-dev/nQobKd2Gl_8/Z5yWAvCh4h4J for some custom tasks you'd need to add to your build.gradle.

Note that this is a temporary workaround until gradle supports building native projects.