Created
January 16, 2015 09:32
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Sample code to convert a View to PDF - Referred from : http://stackoverflow.com/questions/15813005/creating-pdf-file-from-uiwebview
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| -(void)convertToPDF:(UIView*)aView withFileName:(NSString*)aFilename | |
| { | |
| // Creates a mutable data object for updating with binary data, like a byte array | |
| UIWebView *webView = (UIWebView*)aView; | |
| NSString *heightStr = [webView stringByEvaluatingJavaScriptFromString:@"document.body.scrollHeight;"]; | |
| int height = [heightStr intValue]; | |
| CGFloat screenHeight = webView.bounds.size.height; | |
| int pages = ceil(height / screenHeight); | |
| NSMutableData *pdfData = [NSMutableData data]; | |
| UIGraphicsBeginPDFContextToData(pdfData, webView.bounds, nil); | |
| CGRect frame = [webView frame]; | |
| for (int i = 0; i < pages; i++) | |
| { | |
| // Check to screenHeight if page draws more than the height of the UIWebView | |
| if ((i+1) * screenHeight > height) | |
| { | |
| CGRect f = [webView frame]; | |
| f.size.height -= (((i+1) * screenHeight) - height); | |
| [webView setFrame: f]; | |
| } | |
| UIGraphicsBeginPDFPage(); | |
| CGContextRef currentContext = UIGraphicsGetCurrentContext(); | |
| // CGContextTranslateCTM(currentContext, 72, 72); // Translate for 1" margins | |
| [[[webView subviews] lastObject] setContentOffset:CGPointMake(0, screenHeight * i) animated:NO]; | |
| [webView.layer renderInContext:currentContext]; | |
| } | |
| UIGraphicsEndPDFContext(); | |
| // Retrieves the document directories from the iOS device | |
| NSArray* documentDirectories = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask,YES); | |
| NSString* documentDirectory = [documentDirectories objectAtIndex:0]; | |
| NSString* documentDirectoryFilename = [documentDirectory stringByAppendingPathComponent:aFilename]; | |
| // instructs the mutable data object to write its context to a file on disk | |
| [pdfData writeToFile:documentDirectoryFilename atomically:YES]; | |
| [webView setFrame:frame]; | |
| } |
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