title: How to make an android app work in offline mode in android
body: <p>I want to know how i can make my app work in offline mode and store the data on a local database on the android device. </p>
  
  <p>I am using mongodb database and fetching the data by using JSON Parsing.</p>
  
  <p>What should i use to make my app run in offline mode and also update the changes made on the server ?</p>
  
  <p>Which tools should i use ,also which is the best and easy method to implement this?</p>
  
  <p>Thanks in advance.</p>