diff --git a/HelloWorld/proj.android/jni/helloworld/main.cpp b/HelloWorld/proj.android/jni/helloworld/main.cpp
index 9cc0fd4e17..3f954d0376 100644
--- a/HelloWorld/proj.android/jni/helloworld/main.cpp
+++ b/HelloWorld/proj.android/jni/helloworld/main.cpp
@@ -38,9 +38,11 @@ void Java_org_cocos2dx_lib_Cocos2dxRenderer_nativeInit(JNIEnv*  env, jobject thi
     {
         ccDrawInit();
         ccGLInvalidateStateCache();
-        cocos2d::CCDirector::sharedDirector()->setGLDefaultValues();   
+        
         CCShaderCache::sharedShaderCache()->reloadDefaultShaders();
         cocos2d::CCTextureCache::reloadAllTextures();
+        cocos2d::CCNotificationCenter::sharedNotificationCenter()->postNotification(EVNET_COME_TO_FOREGROUND, NULL);
+        cocos2d::CCDirector::sharedDirector()->setGLDefaultValues(); 
     }
 }
 
diff --git a/cocos2dx/CCDirector.cpp b/cocos2dx/CCDirector.cpp
index a4ee9444bf..26bb183812 100644
--- a/cocos2dx/CCDirector.cpp
+++ b/cocos2dx/CCDirector.cpp
@@ -585,7 +585,7 @@ void CCDirector::purgeDirector()
     
     // cocos2d-x specific data structures
     CCUserDefault::purgeSharedUserDefault();
-    CCNotificationCenter::purgeNotifCenter();
+    CCNotificationCenter::purgeNotificationCenter();
     
     ccGLInvalidateStateCache();
     
diff --git a/cocos2dx/extensions/CCNotificationCenter/CCNotificationCenter.cpp b/cocos2dx/extensions/CCNotificationCenter/CCNotificationCenter.cpp
index f23826f7d3..3595343eca 100644
--- a/cocos2dx/extensions/CCNotificationCenter/CCNotificationCenter.cpp
+++ b/cocos2dx/extensions/CCNotificationCenter/CCNotificationCenter.cpp
@@ -43,7 +43,7 @@ CCNotificationCenter::~CCNotificationCenter()
     m_observers->release();
 }
 
-CCNotificationCenter *CCNotificationCenter::sharedNotifCenter(void)
+CCNotificationCenter *CCNotificationCenter::sharedNotificationCenter(void)
 {
     if (!s_sharedNotifCenter)
     {
@@ -52,7 +52,7 @@ CCNotificationCenter *CCNotificationCenter::sharedNotifCenter(void)
     return s_sharedNotifCenter;
 }
 
-void CCNotificationCenter::purgeNotifCenter(void)
+void CCNotificationCenter::purgeNotificationCenter(void)
 {
     CC_SAFE_RELEASE_NULL(s_sharedNotifCenter);
 }
diff --git a/cocos2dx/extensions/CCNotificationCenter/CCNotificationCenter.h b/cocos2dx/extensions/CCNotificationCenter/CCNotificationCenter.h
index 9bd0ba9cf9..5c9820dc64 100644
--- a/cocos2dx/extensions/CCNotificationCenter/CCNotificationCenter.h
+++ b/cocos2dx/extensions/CCNotificationCenter/CCNotificationCenter.h
@@ -37,8 +37,8 @@ public:
     CCNotificationCenter();
     ~CCNotificationCenter();
     
-    static CCNotificationCenter *sharedNotifCenter(void);
-    static void purgeNotifCenter(void);
+    static CCNotificationCenter *sharedNotificationCenter(void);
+    static void purgeNotificationCenter(void);
 
     void addObserver(CCObject *target, 
                      SEL_CallFuncO selector,
diff --git a/cocos2dx/include/CCEventType.h b/cocos2dx/include/CCEventType.h
new file mode 100644
index 0000000000..3a9ad5add2
--- /dev/null
+++ b/cocos2dx/include/CCEventType.h
@@ -0,0 +1,11 @@
+
+#ifndef __CCEVENT_TYPE_H__
+#define __CCEVENT_TYPE_H__
+
+/**
+ * This header is used for defining event types using in CCNotificationCenter
+ */
+
+#define EVNET_COME_TO_FOREGROUND    "event_come_to_foreground"
+
+#endif // __CCEVENT_TYPE_H__
diff --git a/cocos2dx/include/CCParticleSystemQuad.h b/cocos2dx/include/CCParticleSystemQuad.h
index 24387dbaa1..9e1a2c8b29 100755
--- a/cocos2dx/include/CCParticleSystemQuad.h
+++ b/cocos2dx/include/CCParticleSystemQuad.h
@@ -92,6 +92,10 @@ public:
     virtual void draw();
     virtual void setBatchNode(CCParticleBatchNode* batchNode);
     virtual void setTotalParticles(unsigned int tp);
+    
+    /** listen the event that coming to foreground on Android
+     */
+    void listenBackToForeground(CCObject *obj);
 private:
 #if CC_TEXTURE_ATLAS_USE_VAO
     void setupVBOandVAO();
diff --git a/cocos2dx/include/CCTextureAtlas.h b/cocos2dx/include/CCTextureAtlas.h
index 39fc5285e1..7a0ba81671 100755
--- a/cocos2dx/include/CCTextureAtlas.h
+++ b/cocos2dx/include/CCTextureAtlas.h
@@ -193,6 +193,9 @@ public:
     /** draws all the Atlas's Quads
     */
     void drawQuads();
+    /** listen the event that coming to foreground on Android
+     */
+    void listenBackToForeground(CCObject *obj);
 private:
     void setupIndices();
     void mapBuffers();
diff --git a/cocos2dx/include/CCTextureCache.h b/cocos2dx/include/CCTextureCache.h
index 63f6f27886..06659175b1 100755
--- a/cocos2dx/include/CCTextureCache.h
+++ b/cocos2dx/include/CCTextureCache.h
@@ -175,6 +175,7 @@ typedef enum {
     kImageFile,
     kImageData,
     kString,
+    kImage,
 }ccCachedImageType;
 
 public:
@@ -184,6 +185,7 @@ public:
     static void addImageTexture(CCTexture2D *tt, const char* imageFileName, CCImage::EImageFormat format);
     static void addStringTexture(CCTexture2D *tt, const char* text, const CCSize& dimensions, CCTextAlignment alignment, const char *fontName, float fontSize);
     static void addDataTexture(CCTexture2D *tt, void* data, CCTexture2DPixelFormat pixelFormat, const CCSize& contentSize);
+    static void addCCImage(CCTexture2D *tt, CCImage *image);
 
     static void removeTexture(CCTexture2D *t);
     static void reloadAllTextures();
@@ -191,9 +193,16 @@ public:
 public:
     static std::list<VolatileTexture*> textures;
     static bool isReloading;
+    
+private:
+    // find VolatileTexture by CCTexture2D*
+    // if not found, create a new one
+    static VolatileTexture* findVolotileTexture(CCTexture2D *tt);
 
 protected:
     CCTexture2D *texture;
+    
+    CCImage *uiImage;
 
     ccCachedImageType m_eCashedImageType;
 
diff --git a/cocos2dx/include/ccMacros.h b/cocos2dx/include/ccMacros.h
index fc4cf232c9..9784249c31 100644
--- a/cocos2dx/include/ccMacros.h
+++ b/cocos2dx/include/ccMacros.h
@@ -225,7 +225,7 @@ It should work same as apples CFSwapInt32LittleToHost(..)
     do { \
         GLenum __error = glGetError(); \
         if(__error) { \
-            CCLog("OpenGL error 0x%04X in %s %d\n", __error, __FUNCTION__, __LINE__); \
+            CCLog("OpenGL error 0x%04X in %s %s %d\n", __error, __FILE__, __FUNCTION__, __LINE__); \
         } \
     } while (false)
 #endif
diff --git a/cocos2dx/particle_nodes/CCParticleSystem.cpp b/cocos2dx/particle_nodes/CCParticleSystem.cpp
index ffe4ddbcb1..47e60bb34c 100644
--- a/cocos2dx/particle_nodes/CCParticleSystem.cpp
+++ b/cocos2dx/particle_nodes/CCParticleSystem.cpp
@@ -269,62 +269,61 @@ bool CCParticleSystem::initWithDictionary(CCDictionary *dictionary)
             //don't get the internal texture if a batchNode is used
             if (!m_pBatchNode)
             {
-            // texture        
-            // Try to get the texture from the cache
-            const char* textureName = dictionary->valueForKey("textureFileName")->getCString();
-            std::string fullpath = CCFileUtils::fullPathFromRelativeFile(textureName, m_sPlistFile.c_str());
-
-            CCTexture2D *tex = NULL;
-
-            if (strlen(textureName) > 0)
-            {
-                // set not pop-up message box when load image failed
-                bool bNotify = CCFileUtils::getIsPopupNotify();
-                CCFileUtils::setIsPopupNotify(false);
-                tex = CCTextureCache::sharedTextureCache()->addImage(fullpath.c_str());
-
-                // reset the value of UIImage notify
-                CCFileUtils::setIsPopupNotify(bNotify);
-            }
-
-            if (tex)
-            {
-                setTexture(tex);
-            }
-            else
-            {                        
-                const char *textureData = dictionary->valueForKey("textureImageData")->getCString();
-                CCAssert(textureData, "");
-
-                int dataLen = strlen(textureData);
-                if(dataLen != 0)
+                // texture        
+                // Try to get the texture from the cache
+                const char* textureName = dictionary->valueForKey("textureFileName")->getCString();
+                std::string fullpath = CCFileUtils::fullPathFromRelativeFile(textureName, m_sPlistFile.c_str());
+                
+                CCTexture2D *tex = NULL;
+                
+                if (strlen(textureName) > 0)
                 {
-                    // if it fails, try to get it from the base64-gzipped data    
-                    int decodeLen = base64Decode((unsigned char*)textureData, (unsigned int)dataLen, &buffer);
-                    CCAssert( buffer != NULL, "CCParticleSystem: error decoding textureImageData");
-                    CC_BREAK_IF(!buffer);
-
+                    // set not pop-up message box when load image failed
+                    bool bNotify = CCFileUtils::getIsPopupNotify();
+                    CCFileUtils::setIsPopupNotify(false);
+                    tex = CCTextureCache::sharedTextureCache()->addImage(fullpath.c_str());
+                    
+                    // reset the value of UIImage notify
+                    CCFileUtils::setIsPopupNotify(bNotify);
+                }
+                
+                if (tex)
+                {
+                    setTexture(tex);
+                }
+                else
+                {                        
+                    const char *textureData = dictionary->valueForKey("textureImageData")->getCString();
+                    CCAssert(textureData, "");
+                    
+                    int dataLen = strlen(textureData);
+                    if(dataLen != 0)
+                    {
+                        // if it fails, try to get it from the base64-gzipped data    
+                        int decodeLen = base64Decode((unsigned char*)textureData, (unsigned int)dataLen, &buffer);
+                        CCAssert( buffer != NULL, "CCParticleSystem: error decoding textureImageData");
+                        CC_BREAK_IF(!buffer);
+                        
                         int deflatedLen = ZipUtils::ccInflateMemory(buffer, decodeLen, &deflated);
                         CCAssert( deflated != NULL, "CCParticleSystem: error ungzipping textureImageData");
                         CC_BREAK_IF(!deflated);
                         
+                        // don't delete image, VolatileTexture use it in CCTextureCache::sharedTextureCache()->addUIImage()
                         image = new CCImage();
                         bool isOK = image->initWithImageData(deflated, deflatedLen);
                         CCAssert(isOK, "CCParticleSystem: error init image with Data");
                         CC_BREAK_IF(!isOK);
                         
                         setTexture(CCTextureCache::sharedTextureCache()->addUIImage(image, fullpath.c_str()));
+                    }
                 }
-            }
-            CCAssert( this->m_pTexture != NULL, "CCParticleSystem: error loading the texture");
-            
+                CCAssert( this->m_pTexture != NULL, "CCParticleSystem: error loading the texture");
             }
             bRet = true;
         }
     } while (0);
     CC_SAFE_DELETE_ARRAY(buffer);
     CC_SAFE_DELETE_ARRAY(deflated);
-    CC_SAFE_DELETE(image);
     return bRet;
 }
 
@@ -470,7 +469,7 @@ void CCParticleSystem::initParticle(tCCParticle* particle)
     float a = CC_DEGREES_TO_RADIANS( m_fAngle + m_fAngleVar * CCRANDOM_MINUS1_1() );    
 
     // Mode Gravity: A
-    if( m_nEmitterMode == kCCParticleModeGravity ) 
+    if (m_nEmitterMode == kCCParticleModeGravity) 
     {
         CCPoint v(cosf( a ), sinf( a ));
         float s = modeA.speed + modeA.speedVar * CCRANDOM_MINUS1_1();
@@ -488,17 +487,22 @@ void CCParticleSystem::initParticle(tCCParticle* particle)
     }
 
     // Mode Radius: B
-    else {
+    else 
+    {
         // Set the default diameter of the particle from the source position
         float startRadius = modeB.startRadius + modeB.startRadiusVar * CCRANDOM_MINUS1_1();
         float endRadius = modeB.endRadius + modeB.endRadiusVar * CCRANDOM_MINUS1_1();
 
         particle->modeB.radius = startRadius;
 
-        if( modeB.endRadius == kCCParticleStartRadiusEqualToEndRadius )
+        if(modeB.endRadius == kCCParticleStartRadiusEqualToEndRadius)
+        {
             particle->modeB.deltaRadius = 0;
+        }
         else
+        {
             particle->modeB.deltaRadius = (endRadius - startRadius) / particle->timeToLive;
+        }
 
         particle->modeB.angle = a;
         particle->modeB.degreesPerSecond = CC_DEGREES_TO_RADIANS(modeB.rotatePerSecond + modeB.rotatePerSecondVar * CCRANDOM_MINUS1_1());
@@ -532,7 +536,7 @@ void CCParticleSystem::update(ccTime dt)
 {
     CC_PROFILER_START_CATEGORY(kCCProfilerCategoryParticles , "CCParticleSystem - update");
 
-    if( m_bIsActive && m_fEmissionRate )
+    if (m_bIsActive && m_fEmissionRate)
     {
         float rate = 1.0f / m_fEmissionRate;
         //issue #1201, prevent bursts of particles, due to too high emitCounter
@@ -541,14 +545,14 @@ void CCParticleSystem::update(ccTime dt)
             m_fEmitCounter += dt;
         }
         
-        while( m_uParticleCount < m_uTotalParticles && m_fEmitCounter > rate ) 
+        while (m_uParticleCount < m_uTotalParticles && m_fEmitCounter > rate) 
         {
             this->addParticle();
             m_fEmitCounter -= rate;
         }
 
         m_fElapsed += dt;
-        if(m_fDuration != -1 && m_fDuration < m_fElapsed)
+        if (m_fDuration != -1 && m_fDuration < m_fElapsed)
         {
             this->stopSystem();
         }
@@ -557,35 +561,37 @@ void CCParticleSystem::update(ccTime dt)
     m_uParticleIdx = 0;
 
     CCPoint currentPosition = CCPointZero;
-    if( m_ePositionType == kCCPositionTypeFree )
+    if (m_ePositionType == kCCPositionTypeFree)
     {
         currentPosition = this->convertToWorldSpace(CCPointZero);
     }
-    else if ( m_ePositionType == kCCPositionTypeRelative )
+    else if (m_ePositionType == kCCPositionTypeRelative)
     {
         currentPosition = m_tPosition;
     }
 
     if (m_bIsVisible)
     {
-        while( m_uParticleIdx < m_uParticleCount )
+        while (m_uParticleIdx < m_uParticleCount)
         {
             tCCParticle *p = &m_pParticles[m_uParticleIdx];
 
             // life
             p->timeToLive -= dt;
 
-            if( p->timeToLive > 0 ) 
+            if (p->timeToLive > 0) 
             {
                 // Mode A: gravity, direction, tangential accel & radial accel
-                if( m_nEmitterMode == kCCParticleModeGravity ) 
+                if (m_nEmitterMode == kCCParticleModeGravity) 
                 {
                     CCPoint tmp, radial, tangential;
 
                     radial = CCPointZero;
                     // radial acceleration
-                    if(p->pos.x || p->pos.y)
+                    if (p->pos.x || p->pos.y)
+                    {
                         radial = ccpNormalize(p->pos);
+                    }
                     tangential = radial;
                     radial = ccpMult(radial, p->modeA.radialAccel);
 
@@ -604,7 +610,8 @@ void CCParticleSystem::update(ccTime dt)
                 }
 
                 // Mode B: radius movement
-                else {                
+                else 
+                {                
                     // Update the angle and radius of the particle.
                     p->modeB.angle += p->modeB.degreesPerSecond * dt;
                     p->modeB.radius += p->modeB.deltaRadius * dt;
@@ -632,7 +639,7 @@ void CCParticleSystem::update(ccTime dt)
 
                 CCPoint    newPos;
 
-                if( m_ePositionType == kCCPositionTypeFree || m_ePositionType == kCCPositionTypeRelative ) 
+                if (m_ePositionType == kCCPositionTypeFree || m_ePositionType == kCCPositionTypeRelative) 
                 {
                     CCPoint diff = ccpSub( currentPosition, p->startPos );
                     newPos = ccpSub(p->pos, diff);
@@ -655,7 +662,6 @@ void CCParticleSystem::update(ccTime dt)
 
                 // update particle counter
                 ++m_uParticleIdx;
-
             } 
             else 
             {
@@ -687,8 +693,10 @@ void CCParticleSystem::update(ccTime dt)
         } //while
         m_bTransformSystemDirty = false;
     }
-    if (!m_pBatchNode)
+    if (! m_pBatchNode)
+    {
         postStep();
+    }
 
     CC_PROFILER_STOP_CATEGORY(kCCProfilerCategoryParticles , "CCParticleSystem - update");
 }
diff --git a/cocos2dx/particle_nodes/CCParticleSystemQuad.cpp b/cocos2dx/particle_nodes/CCParticleSystemQuad.cpp
index fab7ecefc6..7b66222164 100644
--- a/cocos2dx/particle_nodes/CCParticleSystemQuad.cpp
+++ b/cocos2dx/particle_nodes/CCParticleSystemQuad.cpp
@@ -38,6 +38,8 @@ THE SOFTWARE.
 #include "ccGLStateCache.h"
 #include "CCGLProgram.h"
 #include "support/TransformUtils.h"
+#include "extensions/CCNotificationCenter/CCNotificationCenter.h"
+#include "CCEventType.h"
 
 // extern
 #include "kazmath/GL/matrix.h"
@@ -65,6 +67,14 @@ bool CCParticleSystemQuad::initWithTotalParticles(unsigned int numberOfParticles
 #endif
 
         setShaderProgram(CCShaderCache::sharedShaderCache()->programForKey(kCCShader_PositionTextureColor));
+        
+        
+        // Need to listen the event only when not use batchnode, because it will use VBO
+        CCNotificationCenter::sharedNotificationCenter()->addObserver(this,
+                                                                      callfuncO_selector(CCParticleSystemQuad::listenBackToForeground),
+                                                                      EVNET_COME_TO_FOREGROUND,
+                                                                      NULL);
+        
         return true;
     }
     return false;
@@ -91,6 +101,8 @@ CCParticleSystemQuad::~CCParticleSystemQuad()
         glDeleteVertexArrays(1, &m_uVAOname);
 #endif
     }
+    
+    CCNotificationCenter::sharedNotificationCenter()->removeObserver(this, EVNET_COME_TO_FOREGROUND);
 }
 
 // implementation CCParticleSystemQuad
@@ -236,7 +248,7 @@ void CCParticleSystemQuad::updateQuadWithParticle(tCCParticle* particle, const C
 
     // vertices
     GLfloat size_2 = particle->size/2;
-    if( particle->rotation ) 
+    if (particle->rotation) 
     {
         GLfloat x1 = -size_2;
         GLfloat y1 = -size_2;
@@ -273,7 +285,9 @@ void CCParticleSystemQuad::updateQuadWithParticle(tCCParticle* particle, const C
         // top-right vertex:
         quad->tr.vertices.x = cx;
         quad->tr.vertices.y = cy;
-    } else {
+    } 
+    else 
+    {
         // bottom-left vertex:
         quad->bl.vertices.x = newPosition.x - size_2;
         quad->bl.vertices.y = newPosition.y - size_2;
@@ -477,6 +491,15 @@ void CCParticleSystemQuad::setupVBO()
 
 #endif
 
+void CCParticleSystemQuad::listenBackToForeground(CCObject *obj)
+{
+#if CC_TEXTURE_ATLAS_USE_VAO
+        setupVBOandVAO();
+#else
+        setupVBO();
+#endif
+}
+
 bool CCParticleSystemQuad::allocMemory()
 {
     CCAssert( ( !m_pQuads && !m_pIndices), "Memory already alloced");
diff --git a/cocos2dx/textures/CCTexture2D.cpp b/cocos2dx/textures/CCTexture2D.cpp
index 58ffe567aa..8010b45650 100644
--- a/cocos2dx/textures/CCTexture2D.cpp
+++ b/cocos2dx/textures/CCTexture2D.cpp
@@ -246,34 +246,22 @@ bool CCTexture2D::initWithImage(CCImage *uiImage)
 
 bool CCTexture2D::initWithImage(CCImage * uiImage, ccResolutionType resolution)
 {
-    unsigned int POTWide, POTHigh;
-
-    if(uiImage == NULL)
+    if (uiImage == NULL)
     {
         CCLOG("cocos2d: CCTexture2D. Can't create Texture. UIImage is nil");
         this->release();
         return false;
     }
-
+    
+    unsigned int imageWidth = uiImage->getWidth();
+    unsigned int imageHeight = uiImage->getHeight();
+    
     CCConfiguration *conf = CCConfiguration::sharedConfiguration();
 
-#if CC_TEXTURE_NPOT_SUPPORT
-    if( conf->isSupportsNPOT() ) 
-    {
-        POTWide = uiImage->getWidth();
-        POTHigh = uiImage->getHeight();
-    }
-    else 
-#endif
-    {
-        POTWide = ccNextPOT(uiImage->getWidth());
-        POTHigh = ccNextPOT(uiImage->getHeight());
-    }
-
     unsigned maxTextureSize = conf->getMaxTextureSize();
-    if( POTHigh > maxTextureSize || POTWide > maxTextureSize ) 
+    if (imageWidth > maxTextureSize || imageHeight > maxTextureSize) 
     {
-        CCLOG("cocos2d: WARNING: Image (%u x %u) is bigger than the supported %u x %u", POTWide, POTHigh, maxTextureSize, maxTextureSize);
+        CCLOG("cocos2d: WARNING: Image (%u x %u) is bigger than the supported %u x %u", imageWidth, imageHeight, maxTextureSize, maxTextureSize);
         this->release();
         return NULL;
     }
@@ -281,7 +269,7 @@ bool CCTexture2D::initWithImage(CCImage * uiImage, ccResolutionType resolution)
     m_eResolutionType = resolution;
 
     // always load premultiplied images
-    return initPremultipliedATextureWithImage(uiImage, POTWide, POTHigh);
+    return initPremultipliedATextureWithImage(uiImage, imageWidth, imageHeight);
 }
 bool CCTexture2D::initPremultipliedATextureWithImage(CCImage *image, unsigned int POTWide, unsigned int POTHigh)
 {
diff --git a/cocos2dx/textures/CCTextureAtlas.cpp b/cocos2dx/textures/CCTextureAtlas.cpp
index f0b5aa609c..3fa61e1bdf 100644
--- a/cocos2dx/textures/CCTextureAtlas.cpp
+++ b/cocos2dx/textures/CCTextureAtlas.cpp
@@ -30,6 +30,8 @@ THE SOFTWARE.
 #include "ccMacros.h"
 #include "CCGLProgram.h"
 #include "ccGLStateCache.h"
+#include "extensions/CCNotificationCenter/CCNotificationCenter.h"
+#include "CCEventType.h"
 // support
 #include "CCTexture2D.h"
 #include "CCString.h"
@@ -61,6 +63,8 @@ CCTextureAtlas::~CCTextureAtlas()
     glDeleteVertexArrays(1, &m_uVAOname);
 #endif
     CC_SAFE_RELEASE(m_pTexture);
+    
+    CCNotificationCenter::sharedNotificationCenter()->removeObserver(this, EVNET_COME_TO_FOREGROUND);
 }
 
 unsigned int CCTextureAtlas::getTotalQuads()
@@ -171,6 +175,12 @@ bool CCTextureAtlas::initWithTexture(CCTexture2D *texture, unsigned int capacity
 
     memset( m_pQuads, 0, m_uCapacity * sizeof(ccV3F_C4B_T2F_Quad) );
     memset( m_pIndices, 0, m_uCapacity * 6 * sizeof(GLushort) );
+    
+    // listen the event when app go to background
+    CCNotificationCenter::sharedNotificationCenter()->addObserver(this,
+                                                           callfuncO_selector(CCTextureAtlas::listenBackToForeground),
+                                                           EVNET_COME_TO_FOREGROUND,
+                                                           NULL);
 
     this->setupIndices();
 
@@ -185,6 +195,18 @@ bool CCTextureAtlas::initWithTexture(CCTexture2D *texture, unsigned int capacity
     return true;
 }
 
+void CCTextureAtlas::listenBackToForeground(CCObject *obj)
+{  
+#if CC_TEXTURE_ATLAS_USE_VAO
+    setupVBOandVAO();    
+#else    
+    setupVBO();
+#endif
+    
+    // set m_bDirty to true to force it rebinding buffer
+    m_bDirty = true;
+}
+
 const char* CCTextureAtlas::description()
 {
     return CCString::stringWithFormat("<CCTextureAtlas | totalQuads = %u>", m_uTotalQuads)->getCString();
@@ -561,8 +583,11 @@ void CCTextureAtlas::drawNumberOfQuads(unsigned int n)
 
 void CCTextureAtlas::drawNumberOfQuads(unsigned int n, unsigned int start)
 {    
-    if (0 == n) return;
-    ccGLBindTexture2D( m_pTexture->getName() );
+    if (0 == n) 
+    {
+        return;
+    }
+    ccGLBindTexture2D(m_pTexture->getName());
 
 #if CC_TEXTURE_ATLAS_USE_VAO
 
@@ -580,7 +605,7 @@ void CCTextureAtlas::drawNumberOfQuads(unsigned int n, unsigned int start)
         m_bDirty = false;
     }
 
-    glBindVertexArray( m_uVAOname );
+    glBindVertexArray(m_uVAOname);
 
 #if CC_REBIND_INDICES_BUFFER
     glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_pBuffersVBO[1]);
@@ -608,28 +633,29 @@ void CCTextureAtlas::drawNumberOfQuads(unsigned int n, unsigned int start)
     glBindBuffer(GL_ARRAY_BUFFER, m_pBuffersVBO[0]);
 
     // XXX: update is done in draw... perhaps it should be done in a timer
-    if (m_bDirty) {
+    if (m_bDirty) 
+    {
         glBufferSubData(GL_ARRAY_BUFFER, sizeof(m_pQuads[0])*start, sizeof(m_pQuads[0]) * n , &m_pQuads[start] );
         m_bDirty = false;
     }
 
-    ccGLEnableVertexAttribs( kCCVertexAttribFlag_PosColorTex );
+    ccGLEnableVertexAttribs(kCCVertexAttribFlag_PosColorTex);
 
     // vertices
-    glVertexAttribPointer(kCCVertexAttrib_Position, 3, GL_FLOAT, GL_FALSE, kQuadSize, (GLvoid*) offsetof( ccV3F_C4B_T2F, vertices));
+    glVertexAttribPointer(kCCVertexAttrib_Position, 3, GL_FLOAT, GL_FALSE, kQuadSize, (GLvoid*) offsetof(ccV3F_C4B_T2F, vertices));
 
     // colors
-    glVertexAttribPointer(kCCVertexAttrib_Color, 4, GL_UNSIGNED_BYTE, GL_TRUE, kQuadSize, (GLvoid*) offsetof( ccV3F_C4B_T2F, colors));
+    glVertexAttribPointer(kCCVertexAttrib_Color, 4, GL_UNSIGNED_BYTE, GL_TRUE, kQuadSize, (GLvoid*) offsetof(ccV3F_C4B_T2F, colors));
 
     // tex coords
-    glVertexAttribPointer(kCCVertexAttrib_TexCoords, 2, GL_FLOAT, GL_FALSE, kQuadSize, (GLvoid*) offsetof( ccV3F_C4B_T2F, texCoords));
+    glVertexAttribPointer(kCCVertexAttrib_TexCoords, 2, GL_FLOAT, GL_FALSE, kQuadSize, (GLvoid*) offsetof(ccV3F_C4B_T2F, texCoords));
 
     glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, m_pBuffersVBO[1]);
 
 #if CC_TEXTURE_ATLAS_USE_TRIANGLE_STRIP
-    glDrawElements(GL_TRIANGLE_STRIP, (GLsizei) n*6, GL_UNSIGNED_SHORT, (GLvoid*) (start*6*sizeof(m_pIndices[0])) );
+    glDrawElements(GL_TRIANGLE_STRIP, (GLsizei)n*6, GL_UNSIGNED_SHORT, (GLvoid*) (start*6*sizeof(m_pIndices[0])));
 #else
-    glDrawElements(GL_TRIANGLES, (GLsizei) n*6, GL_UNSIGNED_SHORT, (GLvoid*) (start*6*sizeof(m_pIndices[0])) );
+    glDrawElements(GL_TRIANGLES, (GLsizei)n*6, GL_UNSIGNED_SHORT, (GLvoid*) (start*6*sizeof(m_pIndices[0])));
 #endif // CC_TEXTURE_ATLAS_USE_TRIANGLE_STRIP
 
     glBindBuffer(GL_ARRAY_BUFFER, 0);
diff --git a/cocos2dx/textures/CCTextureCache.cpp b/cocos2dx/textures/CCTextureCache.cpp
index 4ad0766cdc..6b8b34b287 100644
--- a/cocos2dx/textures/CCTextureCache.cpp
+++ b/cocos2dx/textures/CCTextureCache.cpp
@@ -525,6 +525,10 @@ CCTexture2D* CCTextureCache::addUIImage(CCImage *image, const char *key)
 
     } while (0);
 
+#if CC_ENABLE_CACHE_TEXTTURE_DATA
+    VolatileTexture::addCCImage(texture, image);
+#endif
+    
     return texture;
 }
 
@@ -626,6 +630,7 @@ VolatileTexture::VolatileTexture(CCTexture2D *t)
 , m_alignment(CCTextAlignmentCenter)
 , m_strFontName("")
 , m_strText("")
+, uiImage(NULL)
 , m_fFontSize(0.0f)
 {
     m_size = CCSizeMake(0, 0);
@@ -635,26 +640,17 @@ VolatileTexture::VolatileTexture(CCTexture2D *t)
 VolatileTexture::~VolatileTexture()
 {
     textures.remove(this);
+    CC_SAFE_FREE(uiImage);
 }
 
 void VolatileTexture::addImageTexture(CCTexture2D *tt, const char* imageFileName, CCImage::EImageFormat format)
 {
     if (isReloading)
-        return;
-
-    VolatileTexture *vt = 0;
-    std::list<VolatileTexture *>::iterator i = textures.begin();
-    while( i != textures.end() )
     {
-        VolatileTexture *v = *i++;
-        if (v->texture == tt) {
-            vt = v;
-            break;
-        }
+        return;
     }
 
-    if (!vt)
-        vt = new VolatileTexture(tt);
+    VolatileTexture *vt = findVolotileTexture(tt);
 
     vt->m_eCashedImageType = kImageFile;
     vt->m_strFileName = imageFileName;
@@ -662,24 +658,44 @@ void VolatileTexture::addImageTexture(CCTexture2D *tt, const char* imageFileName
     vt->m_PixelFormat = tt->getPixelFormat();
 }
 
-void VolatileTexture::addDataTexture(CCTexture2D *tt, void* data, CCTexture2DPixelFormat pixelFormat, const CCSize& contentSize)
+void VolatileTexture::addCCImage(CCTexture2D *tt, CCImage *image)
 {
-    if (isReloading)
-        return;
+    VolatileTexture *vt = findVolotileTexture(tt);
+    
+    vt->uiImage = image;
+    vt->m_eCashedImageType = kImage;
+}
 
+VolatileTexture* VolatileTexture::findVolotileTexture(CCTexture2D *tt)
+{
     VolatileTexture *vt = 0;
     std::list<VolatileTexture *>::iterator i = textures.begin();
-    while( i != textures.end() )
+    while (i != textures.end())
     {
         VolatileTexture *v = *i++;
-        if (v->texture == tt) {
+        if (v->texture == tt) 
+        {
             vt = v;
             break;
         }
     }
-
-    if (!vt)
+    
+    if (! vt)
+    {
         vt = new VolatileTexture(tt);
+    }
+    
+    return vt;
+}
+
+void VolatileTexture::addDataTexture(CCTexture2D *tt, void* data, CCTexture2DPixelFormat pixelFormat, const CCSize& contentSize)
+{
+    if (isReloading)
+    {
+        return;
+    }
+
+    VolatileTexture *vt = findVolotileTexture(tt);
 
     vt->m_eCashedImageType = kImageData;
     vt->m_pTextureData = data;
@@ -690,21 +706,11 @@ void VolatileTexture::addDataTexture(CCTexture2D *tt, void* data, CCTexture2DPix
 void VolatileTexture::addStringTexture(CCTexture2D *tt, const char* text, const CCSize& dimensions, CCTextAlignment alignment, const char *fontName, float fontSize)
 {
     if (isReloading)
-        return;
-
-    VolatileTexture *vt = 0;
-    std::list<VolatileTexture *>::iterator i = textures.begin();
-    while( i != textures.end() )
     {
-        VolatileTexture *v = *i++;
-        if (v->texture == tt) {
-            vt = v;
-            break;
-        }
+        return;
     }
 
-    if (!vt)
-        vt = new VolatileTexture(tt);
+    VolatileTexture *vt = findVolotileTexture(tt);
 
     vt->m_eCashedImageType = kString;
     vt->m_size        = dimensions;
@@ -714,13 +720,15 @@ void VolatileTexture::addStringTexture(CCTexture2D *tt, const char* text, const
     vt->m_strText     = text;
 }
 
-void VolatileTexture::removeTexture(CCTexture2D *t) {
+void VolatileTexture::removeTexture(CCTexture2D *t) 
+{
 
     std::list<VolatileTexture *>::iterator i = textures.begin();
-    while( i != textures.end() )
+    while (i != textures.end())
     {
         VolatileTexture *vt = *i++;
-        if (vt->texture == t) {
+        if (vt->texture == t) 
+        {
             delete vt;
             break;
         }
@@ -732,11 +740,11 @@ void VolatileTexture::reloadAllTextures()
     isReloading = true;
 
     CCLOG("reload all texture");
-    std::list<VolatileTexture *>::iterator i = textures.begin();
+    std::list<VolatileTexture *>::iterator iter = textures.begin();
 
-    while( i != textures.end() )
+    while (iter != textures.end())
     {
-        VolatileTexture *vt = *i++;
+        VolatileTexture *vt = *iter++;
 
         switch (vt->m_eCashedImageType)
         {
@@ -775,10 +783,11 @@ void VolatileTexture::reloadAllTextures()
             break;
         case kImageData:
             {
-                unsigned int nPOTWide, nPOTHigh;
-                nPOTWide = ccNextPOT((int)vt->m_TextureSize.width);
-                nPOTHigh = ccNextPOT((int)vt->m_TextureSize.height);
-                vt->texture->initWithData(vt->m_pTextureData, vt->m_PixelFormat, nPOTWide, nPOTHigh, vt->m_TextureSize);
+                vt->texture->initWithData(vt->m_pTextureData, 
+                                          vt->m_PixelFormat, 
+                                          vt->m_TextureSize.width, 
+                                          vt->m_TextureSize.height, 
+                                          vt->m_TextureSize);
             }
             break;
         case kString:
@@ -790,6 +799,12 @@ void VolatileTexture::reloadAllTextures()
                     vt->m_fFontSize);
             }
             break;
+        case kImage:
+            {
+                vt->texture->initWithImage(vt->uiImage,
+                                           kCCResolutionUnknown);
+            }
+            break;
         default:
             break;
         }
diff --git a/tests/proj.android/jni/tests/main.cpp b/tests/proj.android/jni/tests/main.cpp
index a4570ea0d8..cf7becbae7 100644
--- a/tests/proj.android/jni/tests/main.cpp
+++ b/tests/proj.android/jni/tests/main.cpp
@@ -1,5 +1,6 @@
 #include "AppDelegate.h"
 #include "cocos2d.h"
+#include "CCEventType.h"
 #include "platform/android/jni/JniHelper.h"
 #include <jni.h>
 #include <android/log.h>
@@ -36,9 +37,11 @@ void Java_org_cocos2dx_lib_Cocos2dxRenderer_nativeInit(JNIEnv*  env, jobject thi
     {
         ccDrawInit();
         ccGLInvalidateStateCache();
-        cocos2d::CCDirector::sharedDirector()->setGLDefaultValues();   
+          
         CCShaderCache::sharedShaderCache()->reloadDefaultShaders();
         cocos2d::CCTextureCache::reloadAllTextures();
+        cocos2d::CCNotificationCenter::sharedNotificationCenter()->postNotification(EVNET_COME_TO_FOREGROUND, NULL);
+        cocos2d::CCDirector::sharedDirector()->setGLDefaultValues(); 
     }
 }
 
diff --git a/tests/proj.ios/test.xcodeproj/project.pbxproj.REMOVED.git-id b/tests/proj.ios/test.xcodeproj/project.pbxproj.REMOVED.git-id
index 8e06cd3ff6..eb506f856c 100644
--- a/tests/proj.ios/test.xcodeproj/project.pbxproj.REMOVED.git-id
+++ b/tests/proj.ios/test.xcodeproj/project.pbxproj.REMOVED.git-id
@@ -1 +1 @@
-8b5c548106a7fde2f85a35a0b0ac330b836d21ad
\ No newline at end of file
+fa64c2ecb635a4bf3fb7d38c3ca86b1a9c81b376
\ No newline at end of file
diff --git a/tests/tests/ExtensionsTest/NotificationCenterTest/NotificationCenterTest.cpp b/tests/tests/ExtensionsTest/NotificationCenterTest/NotificationCenterTest.cpp
index b6cee35578..d1f26c7468 100644
--- a/tests/tests/ExtensionsTest/NotificationCenterTest/NotificationCenterTest.cpp
+++ b/tests/tests/ExtensionsTest/NotificationCenterTest/NotificationCenterTest.cpp
@@ -34,7 +34,7 @@ Light::Light()
 
 Light::~Light()
 {
-    CCNotificationCenter::sharedNotifCenter()->removeObserver(this, MSG_SWITCH_STATE);
+    CCNotificationCenter::sharedNotificationCenter()->removeObserver(this, MSG_SWITCH_STATE);
 }
 
 Light* Light::lightWithFile(const char* name)
@@ -50,11 +50,11 @@ void Light::setIsConnectToSwitch(bool bConnectToSwitch)
     m_bConnected = bConnectToSwitch;
     if (m_bConnected)
     {
-        CCNotificationCenter::sharedNotifCenter()->addObserver(this, callfuncO_selector(Light::switchStateChanged), MSG_SWITCH_STATE, NULL);
+        CCNotificationCenter::sharedNotificationCenter()->addObserver(this, callfuncO_selector(Light::switchStateChanged), MSG_SWITCH_STATE, NULL);
     }
     else
     {
-        CCNotificationCenter::sharedNotifCenter()->removeObserver(this, MSG_SWITCH_STATE);
+        CCNotificationCenter::sharedNotificationCenter()->removeObserver(this, MSG_SWITCH_STATE);
     }
     updateLightState();
 }
@@ -128,7 +128,7 @@ NotificationCenterTest::NotificationCenterTest()
         light->setIsConnectToSwitch(bConnected);
     }
 
-    CCNotificationCenter::sharedNotifCenter()->postNotification(MSG_SWITCH_STATE, (CCObject*)item->getSelectedIndex());
+    CCNotificationCenter::sharedNotificationCenter()->postNotification(MSG_SWITCH_STATE, (CCObject*)item->getSelectedIndex());
 }
 
 void NotificationCenterTest::toExtensionsMainLayer(cocos2d::CCObject* sender)
@@ -142,7 +142,7 @@ void NotificationCenterTest::toggleSwitch(CCObject *sender)
 {
     CCMenuItemToggle* item = (CCMenuItemToggle*)sender;
     int index = item->getSelectedIndex();
-    CCNotificationCenter::sharedNotifCenter()->postNotification(MSG_SWITCH_STATE, (CCObject*)index);
+    CCNotificationCenter::sharedNotificationCenter()->postNotification(MSG_SWITCH_STATE, (CCObject*)index);
 }
 
 void NotificationCenterTest::connectToSwitch(CCObject *sender)
diff --git a/tests/tests/ParticleTest/ParticleTest.cpp b/tests/tests/ParticleTest/ParticleTest.cpp
index e1490aa2a7..2a800fccb0 100644
--- a/tests/tests/ParticleTest/ParticleTest.cpp
+++ b/tests/tests/ParticleTest/ParticleTest.cpp
@@ -1057,13 +1057,19 @@ CCLayer* restartParticleAction()
     return pLayer;
 } 
 
-
-ParticleDemo::ParticleDemo(void)
+ParticleDemo::~ParticleDemo(void)
 {
+    CC_SAFE_RELEASE(m_emitter);
+}
+
+void ParticleDemo::onEnter(void)
+{
+    CCLayer::onEnter();
+    
     initWithColor( ccc4(127,127,127,255) );
-
+    
     m_emitter = NULL;
-
+    
     setIsTouchEnabled( true );
     
     CCSize s = CCDirector::sharedDirector()->getWinSize();
@@ -1071,30 +1077,31 @@ ParticleDemo::ParticleDemo(void)
     addChild(label, 100, 1000);
     label->setPosition( CCPointMake(s.width/2, s.height-50) );
     
-    CCLabelTTF *tapScreen = CCLabelTTF::labelWithString("(Tap the Screen)", "Arial", 20);
-    tapScreen->setPosition( CCPointMake(s.width/2, s.height-80) );
-    addChild(tapScreen, 100);
+    CCLabelTTF *sub = CCLabelTTF::labelWithString(subtitle().c_str(), "Arial", 16);
+    addChild(sub, 100);
+    sub->setPosition(CCPointMake(s.width/2, s.height-80));
+    
     
     CCMenuItemImage* item1 = CCMenuItemImage::itemWithNormalImage(s_pPathB1, s_pPathB2, this, menu_selector(ParticleDemo::backCallback) );
     CCMenuItemImage* item2 = CCMenuItemImage::itemWithNormalImage(s_pPathR1, s_pPathR2, this, menu_selector(ParticleDemo::restartCallback) );
     CCMenuItemImage* item3 = CCMenuItemImage::itemWithNormalImage(s_pPathF1, s_pPathF2,  this, menu_selector(ParticleDemo::nextCallback) );
     
     CCMenuItemToggle* item4 = CCMenuItemToggle::itemWithTarget(    this, 
-                                                                menu_selector(ParticleDemo::toggleCallback), 
-                                                                CCMenuItemFont::itemWithString( "Free Movement" ),
-                                                                CCMenuItemFont::itemWithString( "Relative Movement" ),
-                                                                CCMenuItemFont::itemWithString( "Grouped Movement" ),
-                                                                NULL );
+                                                               menu_selector(ParticleDemo::toggleCallback), 
+                                                               CCMenuItemFont::itemWithString( "Free Movement" ),
+                                                               CCMenuItemFont::itemWithString( "Relative Movement" ),
+                                                               CCMenuItemFont::itemWithString( "Grouped Movement" ),
+                                                               NULL );
     
     CCMenu *menu = CCMenu::menuWithItems(item1, item2, item3, item4, NULL);
-        
+    
     menu->setPosition( CCPointZero );
     item1->setPosition( CCPointMake( s.width/2 - 100,30) );
     item2->setPosition( CCPointMake( s.width/2, 30) );
     item3->setPosition( CCPointMake( s.width/2 + 100,30) );
     item4->setPosition( CCPointMake( 0, 100) );
     item4->setAnchorPoint( CCPointMake(0,0) );
-
+    
     addChild( menu, 100 );
     
     CCLabelAtlas* labelAtlas = CCLabelAtlas::labelWithString("0000", "fonts/fps_images.png", 16, 24, '.');
@@ -1105,7 +1112,7 @@ ParticleDemo::ParticleDemo(void)
     m_background = CCSprite::spriteWithFile(s_back3);
     addChild(m_background, 5);
     m_background->setPosition( CCPointMake(s.width/2, s.height-180) );
-
+    
     CCActionInterval* move = CCMoveBy::actionWithDuration(4, CCPointMake(300,0) );
     CCActionInterval* move_back = move->reverse();
     CCFiniteTimeAction* seq = CCSequence::actions( move, move_back, NULL);
@@ -1113,16 +1120,6 @@ ParticleDemo::ParticleDemo(void)
     
     
     scheduleUpdate();
-}
-
-ParticleDemo::~ParticleDemo(void)
-{
-    CC_SAFE_RELEASE(m_emitter);
-}
-
-void ParticleDemo::onEnter(void)
-{
-    CCLayer::onEnter();
 
     CCLabelTTF* pLabel = (CCLabelTTF*)(this->getChildByTag(1000));
     pLabel->setString(title().c_str());
@@ -1133,6 +1130,11 @@ std::string ParticleDemo::title()
     return "No title";
 }
 
+std::string ParticleDemo::subtitle()
+{
+    return "No titile";
+}
+
 void ParticleDemo::registerWithTouchDispatcher()
 {
     CCDirector* pDirector = CCDirector::sharedDirector();
diff --git a/tests/tests/ParticleTest/ParticleTest.h b/tests/tests/ParticleTest/ParticleTest.h
index 89c1f4f75b..7965d67aee 100644
--- a/tests/tests/ParticleTest/ParticleTest.h
+++ b/tests/tests/ParticleTest/ParticleTest.h
@@ -19,12 +19,12 @@ protected:
     CCSprite*            m_background;
 
 public:
-    ParticleDemo(void);
     ~ParticleDemo(void);
 
     virtual void onEnter(void);
 
     virtual std::string title();
+    virtual std::string subtitle();
 
     void restartCallback(CCObject* pSender);
     void nextCallback(CCObject* pSender);