My project name is Test0001 (Package: com.WBS.Test0001)
My file looks like this:
`import org.cocos2dx.lib.Cocos2dxActivity;
import android.content.Context;
import android.os.Bundle;
import android.view.Display;
import android.view.WindowManager;
public class Test0001 extends Cocos2dxActivity{
static private Test0001 instance;
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
Test0001.instance = this;
}
static {
System.loadLibrary("game");
}
public static int[] getResolution()
{
// get application
Context context = Test0001.instance;
// get window manager and display
WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
Display display = wm.getDefaultDisplay();
// create array with size
int size[] = {display.getWidth(), display.getHeight()};
// return size
return size;
}
}`
and the HelloWorldScene.cpp looks like this
`#include “HelloWorldScene.h”
#include “SimpleAudioEngine.h”
//#include “jni/JniHelper.h”
#include “…/platform/android/jni/JniHelper.h”
using namespace cocos2d;
using namespace CocosDenshion;
CCScene* HelloWorld::scene()
{
// ‘scene’ is an autorelease object
CCScene *scene = CCScene::create();
// 'layer' is an autorelease object
HelloWorld *layer = HelloWorld::create();
// add layer as a child to scene
scene->addChild(layer);
// return the scene
return scene;
}
// on “init” you need to initialize your instance
bool HelloWorld::init()
{
//////////////////////////////
// 1. super init first
if ( !CCLayer::init() )
{
return false;
}
/////////////////////////////
// 2. add a menu item with "X" image, which is clicked to quit the program
// you may modify it.
// add a "close" icon to exit the progress. it's an autorelease object
CCMenuItemImage *pCloseItem = CCMenuItemImage::create(
"CloseNormal.png",
"CloseSelected.png",
this,
menu_selector(HelloWorld::menuCloseCallback) );
pCloseItem->setPosition( ccp(CCDirector::sharedDirector()->getWinSize().width - 20, 20) );
// create menu, it's an autorelease object
CCMenu* pMenu = CCMenu::create(pCloseItem, NULL);
pMenu->setPosition( CCPointZero );
this->addChild(pMenu, 1);
/////////////////////////////
// 3. add your codes below...
// add a label shows "Hello World"
// create and initialize a label
CCLabelTTF* pLabel = CCLabelTTF::create("Hello World", "Thonburi", 34);
// ask director the window size
CCSize size = CCDirector::sharedDirector()->getWinSize();
// position the label on the center of the screen
pLabel->setPosition( ccp(size.width / 2, size.height - 20) );
// add the label as a child to this layer
this->addChild(pLabel, 1);
// add "HelloWorld" splash screen"
CCSprite* pSprite = CCSprite::create("HelloWorld.png");
// position the sprite on the center of the screen
pSprite->setPosition( ccp(size.width/2, size.height/2) );
// add the sprite as a child to this layer
this->addChild(pSprite, 0);
CCSize res = CCSize(0,0);
JniMethodInfo t;
// get method 'getResolution' which returns int array '()[I' from java package 'com.mygame' & 'MyGame' class
if (JniHelper::getStaticMethodInfo(t,
"com/WBS/Test0001",
"getResolution",
"()I"))
{
// get int array
jintArray ret = (jintArray)t.env->CallObjectMethod(t.classID, t.methodID);
// delete reference
t.env->DeleteLocalRef(t.classID);
if (ret)
{
// get array values
jint *oarr = t.env->GetIntArrayElements(ret, NULL);
// assign array values to CCSize
res.width = (float)oarr[0];
res.height = (float)oarr[1];
// release array values
t.env->ReleaseIntArrayElements(ret, oarr, NULL);
}
}
CCLog("resolution is %f %f",res.width, res.height);
return true;
}
void HelloWorld::menuCloseCallback(CCObject* pSender)
{
CCDirector::sharedDirector()->end();
#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
exit(0);
#endif
}
`
but when I run this on the emulator I get the following error:
" VM aborting
Fatal Signal 11 (SIGEGV) at 0xdeadd00d (code=1), thread 1815 (Thread - 132) "
If i comment the JNI calling in the cpp, then HelloWorldScene.cpp works fine.
Any help?
Using the latest version of cocos2d-x.
