void GameWeekRewardLayer::initData()
{
    CCSize visibleSize = CCDirector::sharedDirector()->getVisibleSize();
    CCLayerColor *backGround = CCLayerColor::create(ccc4(0, 0, 0, 150));
    backGround->setContentSize(visibleSize);
    backGround->setZOrder(0);
    this -> addChild(backGround);
    // add your codes here...
    
}