Load PDF from documents directory

[kieran12]

Hi all,

I am using the 'Leaves' framework to add a page turn effect to my app. It displays PDF's using quartz and this works fine if you are loading a PDF from the main bundle. Here is the working code:

CFURLRef pdfURL = CFBundleCopyResourceURL(CFBundleGetMainBundle(), CFSTR("SampleIssue.pdf"), NULL, NULL);
		pdf = CGPDFDocumentCreateWithURL((CFURLRef)pdfURL);
		NSLog(@"PDF: %@", pdf);
		CFRelease(pdfURL);

I want to load a PDF from the documents directory though. Here is my code (which doesn't work):

// Get Documents Directory
		NSArray *searchPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
		NSString *documentsDirectoryPath = [searchPaths objectAtIndex:0]; 
		NSString *tempPath = [documentsDirectoryPath stringByAppendingPathComponent:[appDelegate.issueToLoad stringByAppendingPathExtension:@"pdf"]];
		NSString *path = [tempPath stringByReplacingOccurrencesOfString:@"localhost/" withString:@""];
		NSLog(@"PATH: %@", path);
		
		//Display PDF
		CFURLRef pdfURL = CFURLCreateWithFileSystemPath (NULL, (CFStringRef)path, kCFURLPOSIXPathStyle, FALSE);
		NSLog(@"PDF URL: %@", pdfURL);
		pdf = CGPDFDocumentCreateWithURL(pdfURL);
		NSLog(@"PDF: %@", pdf);

My code gets the correct link to the file. However the final NSLog shows the 'pdf' is NULL. This is obviously a problem and the PDF doesn't load. Can anybody see any obvious problems with my code? Or do you know how I can accomplish this?

Thanks!

[Jacos]

Did you get this to work?! Really need this.

[kieran12]

Originally Posted by Jacos

Did you get this to work?! Really need this.

Ah, sorry I forgot to add the solution to the thread. Here is the code:

// Get Documents Directory
	NSArray *searchPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
	NSString *documentsDirectoryPath = [searchPaths objectAtIndex:0]; 
	NSString *path = [documentsDirectoryPath stringByAppendingPathComponent:[appDelegate.issueToLoad stringByAppendingPathExtension:@"pdf"]];
	
	NSFileManager *fileManager = [NSFileManager defaultManager];
	
	// Check if the file exists
	if ([fileManager fileExistsAtPath:path])
	{
		//Display PDF
		CFURLRef pdfURL = CFURLCreateWithFileSystemPath (NULL, (CFStringRef)path, kCFURLPOSIXPathStyle, FALSE);
		pdf = CGPDFDocumentCreateWithURL(pdfURL);
		leavesView.backgroundRendering = NO;
		CFRelease(pdfURL);
		[leavesView reloadData];
	}

[Jacos]

Hey, tried this for a couple of days now, it don't work. I tried to implement this in my PDF code.

- (void)viewDidLoad {
    [super viewDidLoad];
    
	[scrollView removeFromSuperview];
	[myContentView removeFromSuperview];
	[tiledLayer removeFromSuperlayer];
	
	self.view.backgroundColor = [UIColor scrollViewTexturedBackgroundColor];
	self.view.frame = CGRectMake(0, 0, 320, 411);
	
	myDocumentRef = CGPDFDocumentCreateWithURL((CFURLRef)[NSURL URLWithString:@"9A.pdf"]);
	NSURL *pdfURL = [[NSBundle mainBundle] URLForResource:@"9A.pdf" withExtension:nil];
	myDocumentRef = CGPDFDocumentCreateWithURL((CFURLRef)pdfURL);
	myPageRef = CGPDFDocumentGetPage(myDocumentRef, 1);
	
	tiledLayer = [CATiledLayer layer];
	tiledLayer.delegate = self;
	tiledLayer.tileSize = CGSizeMake(320, 411);
	tiledLayer.levelsOfDetail = 100;
	tiledLayer.levelsOfDetailBias = 100           ;
	tiledLayer.frame = self.view.frame;
	
	myContentView = [[UIView alloc] init];
	myContentView.backgroundColor = [UIColor whiteColor];
	myContentView.frame =  CGRectMake(0, 0, 320, 411);
	
	[myContentView.layer addSublayer:tiledLayer];
	
	CGRect viewFrame =  CGRectMake(0, 0, 320, 411);
	viewFrame.origin = CGPointZero;
	
	scrollView = [[UIScrollView alloc] initWithFrame:self.view.frame];
	scrollView.frame =  CGRectMake(0, 0, 320, 411);
	scrollView.delegate = self;
	scrollView.contentSize = self.view.frame.size;
	scrollView.maximumZoomScale = 5;
	[scrollView addSubview:myContentView];
	
	[self.view addSubview:scrollView];
	
}

Have you any idea how I could load an PDF from the documents dir with this code...?

[Jacos]

Hi, really would appreciate if you helped me out here!

Thanks in advance!

-----

Jacob L

[JasonR]

Jacos,

You really need to start a new thread if you are not using Leaves. The answer to this thread has already been posted.

[Emad Hegab]

can you please tell me where did you put the code.. i've put it in the viewWillAppear and it didn't work and it didn't work on init method in pdfviewcontroller either so where exactly did you put it ?