PDF Generation From UIScrollView + iphone

Question

I want to generate a pdf of UIScrollView whose content size is near about 320*2000. If I use current graphic image context to capture the scroll view layer, then it only cap

Answer 1

Heh guys, i prepared some code base using the examples available on net to create PDF from UIScrollView We should be clear about two things

1) number of pages 2) contentsize of scrollview

i have created a scroll view of content size ( 10 * 910). so it has 10 pages.. This is for iPad.

here is the code base

- (void) createPDF
{
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0];
    NSString *directroyPath = nil;
    directroyPath = [documentsDirectory stringByAppendingPathComponent:@"PDF"];
    NSString *filePath = [directroyPath stringByAppendingPathComponent:@"test.pdf"];
    // check for the "PDF" directory
    NSError *error;
    if ([[NSFileManager defaultManager] fileExistsAtPath:filePath]) {

    } else {
        [[NSFileManager defaultManager] createDirectoryAtPath:directroyPath
                                  withIntermediateDirectories:NO
                                                   attributes:nil
                                                        error:&error];
    }   

     CGContextRef pdfContext = [self createPDFContext:myScrollView.bounds path:(CFStringRef)filePath];
    NSLog(@"PDF Context created");

    for (int i = 0 ; i< 10 ; i++)
    {

        // page 1
        CGContextBeginPage (pdfContext,nil); 

        //turn PDF upsidedown   
        CGAffineTransform transform = CGAffineTransformIdentity;    
        transform = CGAffineTransformMakeTranslation(0, (i+1) * 910);   
        transform = CGAffineTransformScale(transform, 1.0, -1.0);   
        CGContextConcatCTM(pdfContext, transform);  

        //Draw view into PDF
        [myScrollView.layer renderInContext:pdfContext];    
        CGContextEndPage (pdfContext);          
        [myScrollView setContentOffset:CGPointMake(0, (i+1) * 910) animated:NO];

    }
    CGContextRelease (pdfContext);
}

- (CGContextRef) createPDFContext:(CGRect)inMediaBox path:(CFStringRef) path    
{   
    CGContextRef myOutContext = NULL;   
    CFURLRef url;   
    url = CFURLCreateWithFileSystemPath (NULL, path,                                         
                                         kCFURLPOSIXPathStyle,                                       
                                         false);

    if (url != NULL) {      
        myOutContext = CGPDFContextCreateWithURL (url, 
                                                  &inMediaBox,                                                
                                                  NULL);        
        CFRelease(url);     
    }   
    return myOutContext;
}