Question

I have a UIWebView with a graphic generated by Google Charts (javascript rendered)

The screen is not a pdf or png.

Is it possible to capture what’s on the screen and send it to AirPrint?

Answer 1

Take a screenshot of the webview and send it to AirPrint.

// TAKE SCREENSHOT
CGRect myRect = [self.view bounds];
UIGraphicsBeginImageContext(myRect.size);   
CGContextRef ctx = UIGraphicsGetCurrentContext();
[[UIColor blackColor] set];
CGContextFillRect(ctx, myRect);
[self.view.layer renderInContext:ctx];
UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
NSData *imageData = UIImageJPEGRepresentation(viewImage, 1.0);
UIGraphicsEndImageContext();