cd /Users/musictom/Documents/source/ky/app/build/intermediates/classes/debug
javah -jni -classpath /Users/musictom/Library/Android/sdk/platforms/android-25/android.jar:$ANDROID_HOME/extras/android/support/v4/android-support-v4.jar:$ANDROID_HOME/extras/android/support/v7/appcompat/libs/android-support-v7-appcompat.jar:/Users/musictom/Documents/source/ky/app/build/intermediates/classes/debug -o ~/Native.h com.example.musictom.ky.Native
javah 错误: 无法访问android.app.Activity问题解决
原文：http://www.cnblogs.com/yuanxiaoping_21cn_com/p/6937962.html