EGORefreshTableHeaderView引入错误

1， 在使用下拉刷新类库EGORefreshTableHeaderView的时候，将资源文件添加到工程中，但是忘记假如QuartzCore.framework框架，造成编译错误：

Undefined symbols for architecture i386:

  "_CATransform3DMakeRotation", referenced from:

      -[EGORefreshTableHeaderView setState:] in EGORefreshTableHeaderView-6F75314CE1079327.o

  "_OBJC_CLASS_$_CALayer", referenced from:

      objc-class-ref in EGORefreshTableHeaderView-6F75314CE1079327.o

  "_OBJC_CLASS_$_CATransaction", referenced from:

      objc-class-ref in EGORefreshTableHeaderView-6F75314CE1079327.o

  "_CATransform3DIdentity", referenced from:

      -[EGORefreshTableHeaderView setState:] in EGORefreshTableHeaderView-6F75314CE1079327.o

  "_kCAGravityResizeAspect", referenced from:

      -[EGORefreshTableHeaderView initWithFrame:arrowImageName:textColor:] in EGORefreshTableHeaderView-6F75314CE1079327.o

  "_kCATransactionDisableActions", referenced from:

      -[EGORefreshTableHeaderView setState:] in EGORefreshTableHeaderView-6F75314CE1079327.o

ld: symbol(s) not found for architecture i386

clang: error: linker command failed with exit code 1 (use -v to see invocation)

2，框架已经引入还出现编译失败：

在项目中引入EGORefreshTableHeaderView

的时候，编译出错：

Undefined symbols for architecture i386:

“_OBJC_CLASS_$_EGORefreshTableHeaderView”, referenced from:

objc-class-ref in MyMenuViewController.o

ld: symbol(s) not found for architecture i386

clang: error: linker command failed with exit code 1 (use -v to see invocation)

开始以为是缺少库，排查一遍，未发现问题。后来在stackoverflow上查到原因是引入的时候xcode未把

EGORefreshTableHeaderView.m加入到target->build phase->compile sources,手动添加即可