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This project shows how to invoke Android library API in Unity

The project is composed of one Android library project (AndroidSampleLib) that implements the demonstrated API and one Unity project (Unity Sample App) that invokes API from the Android library.

• Unity Project Structure

   In order to include Android libraries, place the AAR or JAR files under Assets/Plugins/Android/ in the Unity project folders. If there are native Android libraries, place them under Assets/Plugins/Android/libs. Resources should be placed under Assets/Plugins/Android/res because Unity extracts jar from aar when building, which doesn't contain resources.

    Unity Sample App/Assets/Plugins/Android/sample_aar.aar
    Unity Sample App/Assets/Plugins/Android/libs/ARMv7/sample_so.so
    Unity Sample App/Assets/Plugins/Android/libs/x86/sample_so.so
    Unity Sample App/Assets/Plugins/Android/res/raw/sample_db.db
    Unity Sample App/Assets/Plugins/Android/res/drawable/sample_bg.xml

• Android Project Structure

  For Android, create a library project in Android Studio. e.g. Set the library module's build.gradle to

    apply plugin: 'com.android.library'
  

  and remove the applicationId

    applicationId "com.pkg.name"
  

  androidTest and test folder can be removed if not needed

    AndroidSampleLib/lib/src/androidTest/
    AndroidSampleLib/lib/src/test/
  

  resources folder can be removed if not needed (jar file can not contain resources but we could ask the library to load resources from the Unity project folder e.g. Unity Sample App/Assets/Plugins/Android/res/raw/sample_db.db).

    AndroidSampleLib/lib/res/