Why does my programmatically created screenshot look so bad on iOS 7?

Question

I am trying to implement sharing app with facebook. I used this code to take the screenshot:

CGSize imageSize = CGSizeMake(self.view.bounds.size.width, self.         


        

Answer 1

in iOS 8 : this is how i am doing to get ScreenShot

1. just added one UIImageView and Method to take screenshot in .h file

@property (weak, nonatomic) IBOutlet UIImageView *imageView;

 -(IBAction)takeSnapShot:(id)sender;

2 added code snip for taking screen shot and set on UIImageView in .m file

- (IBAction)takeSnapShot:(id)sender
{
    UIGraphicsBeginImageContext(self.view.bounds.size);
    [self.view.layer renderInContext:UIGraphicsGetCurrentContext()];
    UIImage *snapShotImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();

    imageView.image = snapShotImage;
}

3. below is the output i got.