EventKit in Universal app (OS3.2)

Question

I made iPhone app with eventkit framework. However, i upgrade to universal app, app can't run in ipad. I got error message

dyld: Library not loaded: /System/Library/Frameworks/EventKit.framework/EventKit

Yes, event kit only work for iOS 4.0 or later. So, how to make it for universal.

I want to make , if iPad app, don't use event kit framework.

However, I can't add

#import <EventKit/EventKit.h>
#import <EventKitUI/EventKitUI.h>

in run time

Answer 1

You need to do two things:

1. First, weak link against the EventKit framework. You do this in Target->Get Info->General.

2. Secondly, you need to decide at run time whether or not certain functionality is available:

   Class someClass = NSClassFromString(@"SomeClass");
   if(someClass) {
     // iOS4 code
   }
   else {
     // iOS3.2 code
   }