android source site
稀土掘金
http://gold.xitu.io/#/
Android 数据库调试 https://github.com/amitshekhariitbhu/Android-Debug-Database
Android opencv320_android_sdk include opencv_contrib project(扩展库编译SDK) https://github.com/wikimen/opencv320_android_sdk-include-opencv_contrib