title: Vertical volume slider
body: <p>I am trying to create a vertical volume level bar with a slider. The users can change the volume by moving the slider up or down. The volume can also be manually set. I only have not idea how to create a layout component which will fit my requirements. Does anyone have tip where to start? I'm aware that you can create <a href="http://developer.android.com/training/custom-views/index.html" rel="nofollow noreferrer">custom views in Android</a>. I already did this for some very basic components. </p>
  
  <p>I am trying to create a layout component which looks like on of these images: </p>
  
  <p><img src="https://i.stack.imgur.com/go7jL.jpg" alt="Slider 1"></p>
  
  <p><img src="https://i.stack.imgur.com/eDN1J.png" alt="Slider 2"></p>