title: Calculate sum of recyclerview item double values
body: <p>How can I sum of Recyclerview every row's textview's values and set in subtotal ?
  Below is screenshot.</p>
  
  <p>How can I take value of recyclerview adapter's all textview values in arraylist ?</p>
  
  <p><a href="https://i.stack.imgur.com/i7asz.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/i7asz.png" alt="enter image description here"></a></p>