Hello, I first run samples found in androind ndk and I create my own
in C. I successfully print a hello world with c function.
but now I want to call c++ function. Then I change file extensions
to .cpp and remake with ndk-build. Ok that seems to work fine. I
refresh my eclispe project. Ok eclispe seems to find my hello world
function in new .so lib made in c++.
Then I launched debug and application failed because it does not find c
++ function. My function is the same but I modify jni function in it
to match c++ jni.
My TestSTL.java
package com.project.teststl;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
public class TestSTL extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//setContentView(R.layout.main);
TextView tv = new TextView(this);
tv.setText( stringFromJNI() );
setContentView(tv);
}
native public static String stringFromJNI();
static {
//System.loadLibrary("stlport_shared");
System.loadLibrary("teststl");
}
}
*************************************
my test.cpp file
#include <string.h>
#include <jni.h>
#include <stdlib.h>
#include <stdio.h>
/* Call to initialize the graphics state */
JNIEXPORT jstring JNICALL
Java_com_project_teststl_TestSTL_stringFromJNI( JNIEnv* env, jobject
obj )
{
jstring s = (env)->NewStringUTF( "Hello from JNI !");
return s;
}
I repeat, in C all is ok (I just modify NewStringUTF for C or C++
because are not the same definition).
Please help me.
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