title: QR Code Scanning inside a limit area
body: <p>I'm new to android. I'm using Google vision-api dependency for Qr-code scanning by following the link below :</p>
  <p><a href="https://www.youtube.com/watch?v=INVNULTm56o" rel="nofollow noreferrer">https://www.youtube.com/watch?v=INVNULTm56o</a> .</p>
  <p>But it scanning the whole screen. If i want to read Qr-code from a limit area or a Boundary without minimize the screen is it possible? Let me Know Thank you.</p>
  <p>I design this boundary in my app and i want read Qr Code from only from boundary:-</p>
  <p><a href="https://i.stack.imgur.com/G9bzc.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/G9bzc.jpg" alt="enter image description here" /></a></p>