title: Fragment onStop() versus onDetach(), onDestroy() or onDestroyView() of the same?
body: <p>This is the question worth to be asked on the behalf of the new developers in Android.</p>
  
  <p>Idea is to provide a deep understanding to why the framework is written as such.
  Also, developers face dangling pointers, illegal states and such run-time crashes, and they do not have a clue that why it is happening.</p>
  
  <p>Programmers now a days heavily use call back and factory patterns. Use of delegate class objects reduce the need for Singleton classes, and the need of multiple inheritance in languages like C, C++.</p>
  
  <p>Developers thrill when they come to understand Handler based message passing between components.</p>
  
  <p>Which one of these methods is more reliable to know that the context of the Fragment, should no longer be used by its components, or outside from the Activity that is parenting it:</p>
  
  <ol>
  <li>onStop()</li>
  <li>onDetach()</li>
  <li>onDestroyView()</li>
  <li>onDestroy()</li>
  </ol>
  
  <p>Best Regards.</p>