cocos2d-x v3.2, xcode6 beta 5,在iphone(ios8）和另一个安卓手机上，图片和字体的缩放正常，但是在ipad上(ios7)缩放不正常，似乎保留了图片的原始比例，代码如下：
Size designSize(640,1136);
Size realSize=glview->getFrameSize();
float contentScalefactor=realSize.height/designSize.height;
designSize.width=realSize.width*designSize.height/realSize.height;
glview->setDesignResolutionSize(designSize.width,1136,ResolutionPolicy::SHOW_ALL);
director->setContentScaleFactor(contentScalefactor);