title: Change Background color of UIView With Multicolor
body: <p>i want to make my UIView Background color like following image</p>
  
  <p><img src="https://i.stack.imgur.com/8Cwm9.png" alt="enter image description here"></p>
  
  <p>when i press on button the view's background color will become like above.
  i was googling to much but not find a way.Can you please help me?</p>