创建时调用的JNI方法对象

Question

Using JNI I am storing a reference to a Java method object ( obj ) in order to call it later from C:

 jobject obj = (*newEnv)->NewObject(newEnv, cls, mid);

where newEnv is my environment, cls is my class ID and mid is my method ID.

Everything works fine except that upon creating this object to be used as a reference later, it actually calls the method right away.

I would like to just create the object for later and not call the method immediately.

Answer 1

Thanks to Gabe Sechan's comments I was able to figure it out:

jmethodID construct = (*newEnv)->GetMethodID(newEnv,cls,"<init>","()V");
jobject obj = (*newEnv)->NewObject(newEnv, cls, construct);

Then I can call the method I want using:

(*newEnv)->CallVoidMethod(newEnv, obj, mid);