title: how do I minimize a fragment from whole screen to just bottom of my screen
body: <p>I need to minimize my fragment from whole screen to fit just a small area to the bottom of my screen,just like in google play music .here is the image</p>
  
  <p><a href="https://i.stack.imgur.com/0t9bw.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/0t9bw.jpg" alt="enter image description here"></a></p>
  
  <p>also when downward swipe is initiated it starts to go downwards,I want to have just like that.Any help is appreciated.</p>