+ (Class)layerClass 不起作用 [英] + (Class)layerClass won't work

问题描述

我正在构建一个 OpenGL 应用程序，但在 eaglview.m + (Class)layerClass 上不起作用.

I'm building an OpenGL application and on eaglview.m + (Class)layerClass wont work.

如果我尝试运行它，我会得到:

If i try to run it I get:

"Undefined symbols for architecture i386:
  "_OBJC_CLASS_$_CAEAGLLayer", referenced from:
      objc-class-ref in GLView.o
ld: symbol(s) not found for architecture i386
collect2: ld returned 1 exit status"

我该如何解决这个问题?

How can I fix this?

推荐答案

您需要将 OpenGL 和可能的 QuartzCore 框架添加到目标以链接它们.

You need to add the OpenGL and potentially the QuartzCore frameworks to the target to link them.

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