capture UIView as UIImage

capture_uiview.m

- (IBAction)capture:(id)sender
{
    UIImage *image = [self imageByCapture:self.view];
    self.imageView.image = image;
}

- (UIImage *)imageByCapture:(UIView *)view
{
    UIGraphicsBeginImageContextWithOptions(view.bounds.size, view.opaque, 0.0);
    [view.layer renderInContext:UIGraphicsGetCurrentContext()];
    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    // UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil);
    return image;
}