In Objective-C, importing same headers in every class make compile time longer?

Question

I\'m a beginner of Objective-C/iOS programing.

I want make a one header file which includes all class headers I use in my project.
And import the header in every

Answer 1

If you want headers imported globally you should do so in the YourProject-Prefix.pch file. It should look something like this..

#import 

#ifndef __IPHONE_4_0
#warning "This project uses features only available in iOS SDK 4.0 and later."
#endif

   #ifdef __OBJC__
   #import 
   #import 
   #import "YourGlobalHeader.h"
#endif

Now, All of your classes have YourGlobalHeader.h automagically imported.