title: Adding UIButton Programmatically won't show
body: <p>I'm currently making an <code>iOS 8 application</code> ready for the app store upon iOS 8 release, I don't obviously <strong>I cannot show much code as I'm keeping the project very quiet</strong> but I am creating a view controller with a scroll view and many objects throughout to create a profile for the user, however I'm trying to add a button to all the user to add projects to their profile and the button won't get added to the scroll view... Is there an unwritten rule with <code>UIButton</code>s and <code>UIScrollView</code>s?</p>
  
  <p>Heres the code I'm using to create the button</p>
  
  <pre><code>UIButton *addProject = [[UIButton alloc] initWithFrame:CGRectMake(210, 285, 100, 18)];
  [addProject setTitle:@"Show View" forState:UIControlStateNormal];
  [addProject addTarget:self action:@selector(addProjectPressed:) forControlEvents:UIControlEventTouchUpInside];
  [_scrollView addSubview:addProject];
  </code></pre>
  
  <p>Is there something I need to do differently to add it to the scroll view?</p>
  
  <p><strong>EDIT 1:</strong> <code>_scrollView.contentSize = CGSizeMake(self.view.frame.size.width, 699);</code></p>
  
  <p><strong>EDIT 2:</strong> Also, the scroll view is created in the storyboard and has a frame of <code>0, 64, 320, 455</code> but the content size as above has a larger height</p>