title: Simple Android Directory picker - How?
body: <p>I have just started coding in Android Studio and feeling Awesome..!! </p>
  
  <p>How can I write a code for a 'Directory Picker'. i.e., When a button is clicked, a simple Dialog/Activity screen which can show list of directories. </p>
  
  <p>Also, want to store all the files in that directory in to an Array variable. (Once OK button is clicked).</p>
  
  <p>PS: I have searched here and found some cool 'File choose' but m looking for Directory Chooser..!</p>
  
  <p>Thanks in advance.</p>