title: (Android) Progress Bar Customization: put vertical line on a bar, put arrow picture above a bar
body: <p>I need some help about progress bar customization.</p>
  
  <p>I want any idea about how to do like these 2 pictures:</p>
  
  <p><a href="http://i.stack.imgur.com/unpPt.png" rel="nofollow">Click here to view pictures </a></p>
  
  <p>1.On left-side picture, there is a red vertical line on the progress bar.</p>
  
  <p>2.On Right-Side picture, there is an arrow picture with vertical line on the progress bar. Also, there are many colors on one progress bar. </p>
  
  <p>What are classes ,methods or whatever idea should be implement for drawing these?</p>
  
  <p>Thanks in advance :)</p>
  
  <p><em>P.S. Picture Source,
  Left: My Diet Diary Calorie Counter,
  Right: Calorie Counter,Viaden Gaming Limited</em></p>