title: UIScrollView has White Space above SubViews
body: <p>I am running across a weird issue, which I can't seem to figure out.<br>
  Upon adding multiple SubViews to a ScrollView, the ScrollViews keeps on adding a White Space ontop of the regular image</p>
  
  <p><img src="https://i.stack.imgur.com/hqdjP.png" alt="White-Space ontop"></p>
  
  <p>A bit better with more colors:
  <img src="https://i.stack.imgur.com/8X0q0.png" alt="enter image description here"></p>
  
  <p>This is how it should look like:
  <img src="https://i.stack.imgur.com/mUT0x.png" alt="no white space"></p>
  
  <p>The Image is perfectly scrollable.</p>
  
  <p>This is the code I'm using to create the scrollview:</p>
  
  <pre><code>-(void)addImagesToScrollView
  {
    if (self.product != nil)
    {
      int imageCount = 0;
  
      if (self.product.labelImage != nil)
      {
        UIImageView *labelImage = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, self.scrollView.frame.size.width, self.scrollView.frame.size.height)];
        labelImage.image = [UIImage imageWithData:self.product.labelImage];
        labelImage.contentMode = UIViewContentModeScaleAspectFit;
        labelImage.tag = 100;
        [self.scrollView addSubview:labelImage];
        imageCount += 1;
      }
  
      if (self.product.bottleImage != nil)
      {
        UIImageView *bottleImage = [[UIImageView alloc] initWithFrame:CGRectMake(self.scrollView.frame.size.width, 0, self.scrollView.frame.size.width, self.scrollView.frame.size.height)];
        bottleImage.image = [UIImage imageWithData:self.product.bottleImage];
        bottleImage.contentMode = UIViewContentModeScaleAspectFit;
        bottleImage.tag = 101;
        imageCount += 1;
  
        [self.scrollView addSubview:bottleImage];
      }
      if (self.product.pourImage != nil)
      {
        UIImageView *pourImage = [[UIImageView alloc] initWithFrame:CGRectMake(self.scrollView.frame.size.width * 2, 0, self.scrollView.frame.size.width, self.scrollView.frame.size.height)];
        pourImage.image = [UIImage imageWithData:self.product.pourImage];
        pourImage.contentMode = UIViewContentModeScaleAspectFit;
        pourImage.tag = 102;
        imageCount += 1;
        [self.scrollView addSubview:pourImage];
      }
      self.scrollView.contentSize = CGSizeMake(self.scrollView.frame.size.width * imageCount, self.scrollView.frame.size.height);
      [self.scrollView setContentOffset:CGPointZero animated:NO];
  
    }
  }
  </code></pre>
  
  <p>Edit:</p>
  
  <p>With a BackgroundColor:</p>
  
  <p><img src="https://i.stack.imgur.com/ZcXfr.png" alt="WIthBackgroundCOlor"></p>