Question

I am using http://www.vfr.org/, pdf viewer, and I try to add a button to open PDF in IBOOK.

I added the button and action to it, but I stuck t the moment when I want open ibooks application with this pdf.

I tried 2 solutions:

1. button tapped action:

   NSURL *fileURL = document.fileURL;
   NSString *fileName = document.fileName; // Document
   [[UIApplication sharedApplication] openURL:fileURL];
   

It opens the IBOOKS but the PDF never gets loaded.

I am assuming the URL format can be wrong I tried even hard code a PDF URL like:

NSString *stringURL = @"itms-books://linktopdf.pdf";     
NSURL *url = [NSURL URLWithString:stringURL];
[[UIApplication sharedApplication] openURL:url];

But the same result.

2) Button tapped action:

    NSURL *fileURL = document.fileURL;
    NSString *fileName = document.fileName; // Document
    UIDocumentInteractionController *docController = [[UIDocumentInteractionController alloc] init];
    docController = [UIDocumentInteractionController interactionControllerWithURL:fileURL];
    docController.delegate = self;

But I have an warning where I try to delegate: docController.delegate = self;

assigning to id UIDocumentInteractionControllerDelegate from Incompatible ReaderViewController

Can someone help me to make it work at least 1 of these solution.

Answer 1

Has the ReaderViewController this kind of line in the header file: @interface ReaderViewController : NSObject < UIDocumentInteractionControllerDelegate > ?