title: Moving an UIView when UIButton is pressed
body: <p>my view hierachy is following:</p>
  
  <pre><code>BigView
  - UIScrollView
    - View 1
    - View 2
    - View 3
  - UIView
    - UIButton
  </code></pre>
  
  <p>now i want, that when i press the UIButton, the BigView (which includes the button as well) moves 100px to the top (so parts of the BigView aren't visible any longer) and another UIView gets visible at the free space under the BigView.</p>
  
  <p>You get the problem? :)</p>
  
  <p>How can I achieve this?</p>
  
  <p>Thanks in advance!</p>