title: Why is my Android phone layout different then my layout on Android Studio?
body: <p>The layout of my MainActivity on my phone appears very differently than the layout I see on the code editor. Images are included. I am using a TabbedView. However, the problem still exists on any layout I choose (empty/tabbed).</p>
  
  <p>What can I do to solve this problem?</p>
  
  <p><a href="https://i.stack.imgur.com/Yys1T.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Yys1T.png" alt="Layout Android Studio"></a>
  <a href="https://i.stack.imgur.com/qg9QJ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/qg9QJ.png" alt="Layout Samsung Galaxy S7 WQHD screen"></a></p>
  
  <p>I am concerned about the text "Hello world" in the middle, not in the top left corner. I follow <a href="https://www.youtube.com/watch?v=UaH4PQpV4BM" rel="nofollow noreferrer">this tutorial</a> and in the tutorial it is correctly positioned.</p>