Android上的OpenCV:无法从加载器加载opencv_java——我需要用NDK编译吗?我错过了什么吗?

I feel like I've missed something obvious here. I'm trying to get OpenCV to run on Android. I wanted to use the static initialization method, so I copied the appropriate native library files from the OpenCV SDK to my app/libs/armeabi-v7a folder within my Android Studio project. I know that Google Glass (what I'm developing for) uses this architecture - and in any case, I also have the /lib/armeabi folder just in case. I feel like I've missed something obvious here.