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xcode3.2

Not able to take the screenshots in a viewcontroller view of xcode

I'm reading pdf's in a view and trying to capture screenshots of pdf pages. UIGraphicsGetImageFromCurrentImageContext() doesn't work. any solutions?

Solution

  • That only works when the current image context is relevant, for instance if you are calling this within the drawRect method of a UIView then you have the context relating to the view.

    Instead you need to create a new graphics context and render the view into it...

    UIGraphicsBeginImageContext(view.size);

CGContextRef ctx = UIGraphicsGetCurrentContext();
CGRect area = CGRectMake(0, 0, view.size.width, view.size.height);

CGContextDrawImage(ctx, area, view.layer.CGImage);

UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();    
UIGraphicsEndImageContext();

    This is from memory so I hope this is correct but you get the idea....