How to generate C header file (*.h) containing the function prototype for the native method implementation JNI in Android studio while build automatically?
Assume you have a project HelloNative
HelloNative |-build/intermediate/classes/debug (you get this directory upon project build) |-app/src/main/jni /src/main/java/com/planets/mercury/HelloNativeActivity.java
And you want to generate the header file for HelloNativeActivity.java --> do this
cd HelloNative javah -d app/src/main/jni -classpath /Users/john-smith/Android/sdk/platforms/android-19/android.jar:app/build/intermediates/classes/debug com.planets.mercury.HelloNativeActivity
Replace john-smith and android sdk path with what it is on your own machine. For the android jar file. You can use whatever is your choice.
Eg. android-19, or android-21