在做一个视频截屏功能,用到OpenGL的glReadPixels方法,在ios7.1中都没有问题,但是在ios8中提示:Implicit declaration of function 'glReadPixels' is invalid in C99 和 use of undeclared identifier 'GL_RGBA'
iOS8中的定位服务 My app that worked fine in iOS 7 doesn't work with the iOS 8 SDK. CLLocationManager doesn't return a location, and I don't see my app under Settings > Location Services either. I did a Google search on the issue but nothing came up, what c