title: How to set Vim autocompletion for android developement?
body: <p>Refer to: 
  <a href="https://stackoverflow.com/questions/3165117/vim-setup-for-android-development">How can I set up Vim for Android development?</a>.</p>
  
  <p>Autocompletion of vim (omnicomplete) is powerful tool of vim,
  but there was no tags of android library...,
  how do i set my vim for android development?</p>