title: creating custom vertical seekbar, android
body: <p>In my application I require a vertical seekbar, something like this:
  <img src="https://i.stack.imgur.com/qIsZC.png" alt="vertical seekbar"></p>
  
  <p>I dont know how to modify android's default seekbar to look like this ! also I dont know any external 3rd party library which provides this kind of seekbar..</p>
  
  <p>Is there any way I can get this !</p>
  
  <p>Thanks in advance,</p>