Difference between add(), replace(), and addToBackStack()

Question

What is the main difference between calling these methods:

fragmentTransaction.addToBackStack(name);
fragmentTransaction.replace(containerViewId, fragment, t         


        

Answer 1

Important thing to be noticed:

Difference between Replace and Replace with backstack is whenever we use only replace then the fragment is destroyed ( ondestroy() is called ) and when we use replace with backstack then fragments onDestroy() is not called ( i.e when back button is pressed fragment is invoked with its onCreateView())