title: How to enable zoom in ScrollView?
body: <p><strong>How to enable zoom in <code>Scrollview</code>?</strong></p>
  
  <p>Here is an application that uses this function very well and works in API9 and more:</p>
  
  <p>The <code>zoomcontrol</code> hide after 2 seconds without user interaction.</p>
  
  <p><img src="https://i.stack.imgur.com/t0j0C.png" alt="enter image description here"><img src="https://i.stack.imgur.com/BPMoT.png" alt="enter image description here"></p>