Print contents of an UIWebView

PrintWebView.m

UIPrintInteractionController *controller = 
[UIPrintInteractionController sharedPrintController];
    
UIPrintInfo *printInfo = [UIPrintInfo printInfo];
printInfo.outputType   = UIPrintInfoOutputGeneral;
    
controller.printInfo      = printInfo;
controller.printFormatter = [_webView viewPrintFormatter];
controller.showsPageRange = YES;
    
void (^completionHandler)(UIPrintInteractionController *, BOOL, NSError *) =
^(UIPrintInteractionController *printController, BOOL completed, NSError *error)
{

};

    
[controller presentAnimated: YES 
          completionHandler: completionHandler];