createPDFContext：（CGRect）inMediaBox路径：（CFStringRef）

Question

我正在创建pdf表单uiwebview webview heiht是29649或更高或更低我正在检查uiwebview高度并采取适当的必要宽度我只得到pdf的ome部分并且剩下的所有页面都是空白

//in the mac it is working fine  but in  the iphone only some part of the data is only coming

    help me.... please

我的代码是

if ([tmpview isKindOfClass:[UIWebView class]]) 
            {
                UIWebView *tmp = (UIWebView *)tmpview;
                tmp.hidden = NO;
                output = [tmp stringByEvaluatingJavaScriptFromString:@"document.body.scrollHeight;"];

                if (tmp.tag == 1001) {  

                    for (id subview in tmp.subviews)

                        if ([[subview class] isSubclassOfClass: [UIScrollView class]]) {

                            UIScrollView *sv1 = (UIScrollView*) subview;
                            CGFloat scrollViewHeight = 0.0f;
                            CGFloat scrollViewWidth = 0.0f;
                            UIView *tmp_view;

                            for (UIImageView* view in sv1.subviews) {

                                if([view isKindOfClass:[UIImageView class]]) {
                                    view.backgroundColor = [UIColor yellowColor];
                                    [view removeFromSuperview];
                                } else { }

                                tmp_view = view;
                                CGFloat y = view.frame.origin.y;
                                CGFloat h = view.frame.size.height;
                                CGFloat x = view.frame.origin.x;
                                CGFloat w = view.frame.size.width;

                                if (y + h > scrollViewHeight) {
                                    scrollViewHeight = h + y;
                                }

                                if (x + w > scrollViewWidth) {
                                    scrollViewWidth = w + x;
                                }
                            }

                            if(scrollViewWidth < 816) {
                                scrollViewWidth = 816; 
                            }
                        sv1.frame = CGRectMake(0, 0, scrollViewWidth, scrollViewHeight);

                            NSLog(@"%f",scrollViewWidth);
                            NSLog(@"%f",scrollViewHeight);
                            NSLog(@"%f",tmp.frame.size.width);

                        tmp.frame = CGRectMake(0, 0, tmp.frame.size.width, scrollViewHeight);


                            if (scrollViewHeight > 4210.0) {
                                cnt = (int)ceil(scrollViewHeight/4210.0);

                            } else {
                                cnt = 1;    
                            }
                                for (int i = 0,j=0; j<cnt; i++,j++)
                                {
                                    NSLog(@"%f",scrollViewHeight);

                                    NSLog(@"%f",scrollViewWidth);

                                    NSLog(@"%f",scrollViewHeight);

                                    NSLog(@"%f",tmp.frame.size.width);

                                    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

                                    NSString *documentsDirectory = [paths objectAtIndex:0];

                                    NSString *directroyPath = nil;

                                    NSString *filepathpdf = @"/";

                                    filepathpdf = [filepathpdf stringByAppendingString:[NSString stringWithFormat:@"%d.pdf",(i+1)]];

                                    NSString *filePath = [documentsDirectory stringByAppendingPathComponent:filepathpdf];

                                    // check for the "PDF" directory
                                    NSError *error;
                                    if ([[NSFileManager defaultManager] fileExistsAtPath:filePath]) {

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

                            //scrolview height
                                    CGRect S = CGRectMake(0,0, scrollViewWidth, (i+1)*4210);

                                    CGContextRef pdfContext = [self createPDFContext:S path:(CFStringRef)filePath];     

                                    CGRect pageRect = CGRectMake(0, 0, scrollViewWidth, 4210);

                                NSAutoreleasePool *pppp = [[NSAutoreleasePool alloc] init];

                                // page 1
                                CGContextBeginPage (pdfContext,&pageRect); 
                                //turn PDF upsidedown   
                                CGAffineTransform transform = CGAffineTransformIdentity;    

                                transform = CGAffineTransformMakeTranslation(0, (i+1)*4210);   

                                transform = CGAffineTransformScale(transform, 1.0, -1.0);   

                                CGContextConcatCTM(pdfContext, transform);  

                                [sv1.layer renderInContext:pdfContext];   

                                CGContextEndPage (pdfContext); 

//                              CGContextFlush(pdfContext);

                                [sv1 setContentOffset:CGPointMake(0, (i+1) * 4210) animated:NO];

                                CGContextRelease (pdfContext);



                                [pppp release];
                            }

                            //scrollViewWidth = 0.0;


                        }
                }
            }


        }   


//for pdf creating using media box i am using this



+(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;
}