title: Creating *.aar library
body: <p>Hi I'm a new in Android development and using Android studio. I need to create *.aar lib. I created New Android library project (empty for now). How to generate *.aar file from it? Can you explain by steps? Has read a lot of topics but still unsuccessful. Thanks.</p>
  
  <p><img src="https://i.stack.imgur.com/0hSDH.png" alt="enter image description here"></p>