title: Flutter: Passing data from two stateful widgets
body: <p>May I know what to do if let's say I have StatefulWidget_1 with an object Object_1 that I will pass to StatefulWidget_2, do some changes to Object_1 then pass it back to StatefulWidget_1. Is this setup possible? May I know the suggested solution? </p>
  
  <p>I am having trouble since modifications done by StatefulWidget_2 are discarded when accessing Object_1 in StatefulWidget_1.</p>