IOS opening PDF

Question

I am trying to open PDF file into my application with a custom UIBarButtonItem into the UINavigationBar, two options to open pdf into IOS

-UIDocumentInteractionController
-QLPreviewController

in IOS6 i have found this posts with prove that we cant customize the UINavigationBar

Custom navigationItem button with QLPreviewController in iOS6
QLPreviewController remove or add UIBarButtonItems
http://www.cimgf.com/2012/07/11/a-better-fullscreen-asset-viewer-with-quicklook/
Custom "Email" action in UIDocumentInteractionController

"iOS6 Update This technique of overriding the QLPreviewController will no longer work in iOS 6. I have contacted Apple about the situation, but they simply stated that it is no longer supported and it is considered a private API" is there is any other way to open PDF in IOS without Using UIWebView and to customize the UIBarButtonItem.

score 1 · Answer 1 · answered Jul 12 '13 at 13:19

I don't know what exactly you want to do with the PDF, but you can open a PDF file from the bundle using some code like this:

CGPDFDocumentRef pdfDoc;
CGPDFPageRef pdfPage;

NSURL* pdfURL = [[NSBundle mainBundle] URLForResource:@"filename" withExtension:@"pdf"];

CFURLRef urlRef = (__bridge CFURLRef)pdfURL;
pdfDoc = CGPDFDocumentCreateWithURL(urlRef);

if (pdfDoc == NULL) {
    // Not good
}

if (CGPDFDocumentIsEncrypted (pdfDoc)) {
    if (!CGPDFDocumentUnlockWithPassword (pdfDoc, "")) {
        if (!CGPDFDocumentUnlockWithPassword (pdfDoc, "password")) {
                        // Not good, document is locked
        }
    }
}

if (!CGPDFDocumentIsUnlocked (pdfDoc)) {
    CGPDFDocumentRelease(pdfDoc);
} else {
    pdfPage = CGPDFDocumentGetPage(pdfDoc, 1);
    CGPDFPageRetain(pdfPage);
    // ...
}

From this point on the documentations from Apple should help you:

Quartz 2D Programming Guide

Core Graphics Framework Reference

IOS opening PDF

1 Answers1