title: Fetch saved images in offline mode
body: <p>I am working on a project, in which user can search images of different cities.</p>
  
  <p>Let say, user has searched Delhi then the result should be saved so that next time when user search same city while having no internet connection then previously saved images should be shown(Delhi in this case).</p>
  
  <p>Please suggest a good approach, confused between sqlite and cache </p>