How to implement a magnifying glass in the index list of an UITableView? : <p>I want to implement a magnifying glass in the index list of an UITableView in Swift.
Here is how it should look like:</p>

<p><a href="https://i.stack.imgur.com/42qlW.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/42qlW.jpg" alt=""></a>
Is there a simple way to achieve it? The magnifying glass should be a button. By pressing this button something like</p>

<pre class="lang-swift prettyprint-override"><code>tableView.scroll(to: .top, animated: true)
</code></pre>

<p>should be executed...</p>

<p>Thanks for your help!</p>
