title: How to use emoji in android?
body: <p>I am working on a chat app using firebase, and now I want to use emoji in my app.
  Can any one tell me how yo use emoji in android.</p>
  
  <p>So I want to have a keyboard in my app that has emoji just like Whatsapp or Hangouts. How can I do that? I want to leave my key keyboard as it is I just want to add tabs to put emojis. I would think it would be easily supported by the soft keyboard but I can find nothing so far. Anyone could tell how to do it?</p>