屏幕自适应

pEGLView->setDesignResolutionSize(768, 1024,kResolutionFixedWidth);

{

   kResolutionExactFit,//完全拉伸

   kResolutionNoBorder,//按短边进行拉伸

   kResolutionShowAll,//按长边进行拉伸

   kResolutionFixedHeight,//固定高

   kResolutionFixedWidth,//固定宽

    kResolutionUnKnown,

}