call jni method from another method

hi,

i want to know if we can call a jni method in another method, because it never worked for us.

so let me explain in detail.

i have a method (function)called in c++ file named, let us say phone.cpp

void answer()

we have written a jni for that method and modified the void answer to

JNIEXPORT void JNICALL Java_testall_answer(JNIEnv *env, jobject jobj)

now we wanted to call the void answer() method in another function of the c++ file (phone.cpp).

how can it be made.

we tried

answer();
Java_testall_answer();
Java_testall_answer(JNIEnv *env, jobject jobj);
JNICALL Java_testall_answer(JNIEnv *env, jobject jobj);
JNICALL Java_testall_answer();

nothing worked..

kindly help.

thanks in advance

bharani rao wrote:Java_testall_answer(JNIEnv *env, jobject jobj);

What happens if you remove the types:

hi rob,

it did not work..

i doubt if it is possible..

thank you in advance.

Can you show me the method that is trying to call the native method?

hi rob,

this is the api that is calling that jni method

static void on_incoming_call(pjsua_acc_id acc_id, pjsua_call_id call_id,pjsip_rx_data *rdata)

this is from pjsip stack

thank you

Then it seems that you have no access to JNIEnv* and jobject variables to pass to that method. You need to have a reference to those somehow.

thank you rob....

i will try and inform you the status.

hi rob,

we tried hard and managed to proceed with our project without calling the jni method n another method..
we recreated the things done in the other method in the jni method and an additional method

thank you.

bharani rao wrote:hi rob,

we tried hard and managed to proceed with our project without calling the jni method n another method..
we recreated the things done in the other method in the jni method and an additional method

It strikes me that this is the better implementation anyway. Write a non-JNI version of your code, then implement the JNI method to call the non-JNI one to get the work done. That way there's no code duplication, and the non-JNI method can be easily called from wherever.

hi ernest,

you are right...
it worked for us... it is easy if we do so with out any complications like the other procedure

thank you