Tag: IPhone

Detected an attempt to call a symbol in …

“Detected an attempt to call a symbol in system libraries that is not present on the iPhone”
在尝试复制《IPhone Game Development》的例子时遇到了这个错误,似乎应该是Simulator 4.1对SDK 4.1的支持有问题。把Simulator的版本换作4.0.1就行了。 ... 

Invalid Context

按照《IPhone Game Development》开始学习Game Development。
当在一个Game Loop中进行Update和Render时,都需要得到CGContextRef画图形。如果直接调用Update和Render,
在其中调UIGraphicsGetCurrentContext()就会报Invalid Context。 ...  Read more