UIDocumentInteractionController not working in iPad Simulator (XCode 3.2.3)
The UIDocumentInteractionController
appears to be non-functional in iPad Simulator ("iPhone Simulator" version 4.0, shipping with XCode 3.2.3, using iOS Version 3.2).
I have a simple sample code presenting a PDF preview using UIDocumentInteractionController
. It works on the device. On iPad presentPreview
just returns NO, the UIDocumentInteractionController's
delegat开发者_Go百科e methods are not invoked.
Any hint how to make it work?
Confirming the same behaviour over here: calling - (BOOL)presentPreviewAnimated:
returns NO
on the simulator but works on the device. Thanks for pointing this out, I just spent two hours going over my code again and again. Got no solution so far.
I actually had this issue on iOS versions higher than iOS 4.2, even though this was a known bug back in the day.
The issue being that the UIDocumentInteractionController
would act fine on the device, but in the simulator it would crash. What I discovered was that the problem went away when I managed the memory slightly differently. The difference being, autoreleasing
in the DidEndPreview
delegate method. Here's the core of my code :
-(void)createPDF
{
UIDocumentInteractionController *dc;
//....other code to generate pdf document
dc = [[UIDocumentInteractionController interactionControllerWithURL:loadURL] retain];
dc.delegate = self;
[dc retain];
[dc presentPreviewAnimated:YES];
}
//Delegate Methods
- (void)documentInteractionControllerDidEndPreview:(UIDocumentInteractionController *)controller
{
[controller autorelease];
}
Previously I had handled simply created the document controller like a regular modal view and released it after I presented it.
NOTE : The autorelease is important, you will crash with just a regular release call.
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