title: iPhone iOS how to create interactive drag, rotate, resize, delete view control?
body: <p>I got an app that allows users to add content to a canvas. I would like to be able to offer the user an ability to move, rotate, resize, reflect this content. Currently I'm doing this with gestures, but would like to know if there is some sort of open-source widget that draws a box around the view and adds 4 buttons to do these functions:</p>
  
  <ul>
  <li>rotate 90 degrees</li>
  <li>rotate freely</li>
  <li>resize</li>
  <li>delete</li>
  </ul>
  
  <p><strong>Can anyone think of an open source framework that I can add to my project to create controls like the ones displayed?</strong></p>
  
  <p><img src="https://i.stack.imgur.com/R3G4Z.png" alt="Rotate controls"></p>
  
  <p>I can probably build this by hand, but debugging gesture recognizers and view rotation is not the most fun thing, so I'm looking for something more polished.</p>
  
  <p>Thank you!</p>