IBAction doesn't show up in interface builder

Question

I've added

- (IBAction)printCollection

to my class but it doesn't show up in interface builder. I've cleaned the built, restarted interface builder, but it doesn't show up.

The previous (IBAction) are instead all there... I don't get it.

thanks

Answer 1

- (IBAction)printCollection:(id)sender;

另外，请确保已保存.h，并且xib的文件所有者是正确的。