title: How to use aapt2, where is the documentation?
body: <p>I have used <code>aapt p</code> to package resources and generate <code>R.java</code>.</p>
  
  <p>But when I upgraded to Android 24, I found <code>aapt2.exe</code>.</p>
  
  <p>Should I use <code>aapt2.exe</code>? How do I use it? I could not find any documentation about it.</p>