title: How to be able to interact with a view after hiding a container view?
body: <p>I have a container view within my viewContolerA and it is hidden by default. On a click of buttonA the container property isHidden is set to false so the user can now interact with the container. A buttonB in the container is to hide the container. Once clicked the container is hidden but I cant interact with the the buttonA or any other sub-view again ? What am I doing wrong? ( Swift3 )</p>
  
  <p><strong>clarification:</strong> </p>
  
  <p>The container is a subview of my viewContolerA and so do buttonA</p>