Printing UIWebView content (Xcode 4 tutorial)
The UIWebView class provides a lot of useful functions to manage complex documents, html, .doc, .pdf etc etc
In this article we will see how to print its content.
webView is the UIWebView I want to print.
- Show the printing user interface.
UIPrintInteractionController *pic = [UIPrintInteractionController sharedPrintController];
- Prepare a print-information object initialized with default values.
UIPrintInfo *printInfo = [UIPrintInfo printInfo];
- Set the output type.
printInfo.outputType = UIPrintInfoOutputGeneral;
pic.printInfo = printInfo;
the output type could assume the following values:
UIPrintInfoOutputGeneral Text, Graphics and images.
UIPrintInfoOutputPhoto Black and white or color images
UIPrintInfoOutputGrayscale content is in gray scale.
- Lay out the drawn content of the view for printing.
pic.printFormatter = [webView viewPrintFormatter];
- Show the page range
pic.showsPageRange = YES;
- Wait for completion
void (^completionHandler)(UIPrintInteractionController *, BOOL, NSError *) =
^(UIPrintInteractionController *printController, BOOL completed, NSError *error)
{
if (!completed && error)
{
NSLog(@"Printing could not complete because of error: %@", error);
}
};
[pic presentAnimated:YES completionHandler:completionHandler];
That's all, it's easy and fast. You can try this code also on simulator using the Printer Simulator.
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Gg1
I really like the tutorial! I got everything to work great, but I am making a universal app and I was wondering if you could tell me how to make your code work on the iPad as well? Thanks for a wonderful tutorial!
I'm mostly getting good result from the method described here, but am concerned about warning messages rec'd on the console. One says "WARNING: Calling – [UIPintInteractionController presentAnimated:completionHandler:] on iPad. The next one says: -[UIPopoverController presentPopoverFromRect:inView:permittedArrowDirections:animated:]: the rect passed in to this method must have non-zero width and height. This will be an exception in a future release.
Here is the code I'm using to invoke the pic:
UIPrintInteractionController *pic = [UIPrintInteractionController sharedPrintController];
UIPrintInfo *printInfo = [UIPrintInfo printInfo];
printInfo.outputType = UIPrintInfoOutputGeneral;
pic.printInfo = printInfo;
pic.printFormatter = [myWebPage viewPrintFormatter];
[pic presentAnimated:NO completionHandler:completionHandler];
Good tutorial. Simple and to the point. Thanks for posting.