Swft: IOS: How to create a clickable button with image over an ImageView : I'm a stater for IOS trying to design a small application. I have an ImageView as the Background a smaller imageView as panel. Now I'm trying to add a button with image on the panel, but the button is totally not visible. Then I remove the image and set a background color to it, the button becomes visible but not clickable. Below is the code I wrote:
[enter image description here][1]


  [1]: http://i.stack.imgur.com/kBYDV.jpg