title: How to create a widget to my existing application?
body: <p>I have application on the market that store users shifts of works hours in a database.
  In the application i have a Button that insert the current time and date to the database. and after show it on a simple ListView. now the users ask me to make it widget.
  I try to search on the web some tutorial or information about my problem, but no result.
  So, my question is if it's possible to do that? even that the application already on the market ?how much its complicated to do that? where to start and how? thanks for everyone!</p>