It is really frustrating to build OpenCV native code with new Android Studio. The new Android Studio doesn't use make files, instead, sets compile options in app's builde.gradle file. The new gradle experimental(0.6.0-beta4) has some changes in DSL. It uses '.add' function, not '+='. Look at Sample Project at github AndroidOpenCVNDKDemo . It use Android Studio 2.0 beta5, gradle-experimental:0.6.0-beta, and OpenCV 3.1.0. I hope this will save your time. Useful sites http://tools.android.com/tech-docs/new-build-system/gradle-experimental http://ph0b.com/new-android-studio-ndk-support/ https://github.com/joaopedronardari/OpenCV-AndroidSamples -- 2016.03.06 Updated step by step explanation for Android NDK http://web.guohuiwang.com/technical-notes/androidndk1
artilla's personal blog. Sorry for broken English, just in practice