title: how to see preview of xml in Android Studio
body: <p>I installed android studio and when i open an xml file i cant preview it or see pallete <img src="https://i.stack.imgur.com/oWHhb.png" alt="enter image description here"></p>
  
  <p>If i go to View-tool windows - palette it wont show again.
  I want to see preview of xml file like in eclipse </p>