While working with fragments we counter the management of fragments in Backstack most of the time we create multiple instance of fragments in Backstack unknowingly.

Here are some points that need to be taken care while creating fragments.

• Check the backstack if the fragment is already created.

• If it was created previously pop it from the backstack and put it on top so that it is visible to the user.

• If fragment is not present in backstack crate it and store it in backstack.

Create a method like below which will handle such situation.

    private void openFragment(Fragment fragment_to_be_opened){
      String fragment_to_be_opened_name = fragment_to_be_opened.getClass().getName();

      FragmentManager manager = getSupportFragmentManager();
// fetching the fragment if it is present in backstack
      boolean fragment_allready_present = manager.popBackStackImmediate (fragment_to_be_opened_name, 0);


      if (!fragment_allready_present){ //fragment is not present in backstack so create it and save the name in //backstack
        FragmentTransaction fragment_trasition = manager.beginTransaction();
        fragment_trasition.replace(R.id.fragment_container, fragment_to_be_opened);
        fragment_trasition.addToBackStack(fragment_to_be_opened_name);
        fragment_trasition.commit();
      }
    }

Now call this method from the activity to open a new fragment like

// create instance of fragment and pass it to the open fragment method
 Fragment myFragment = new myFragment();
 openFragment(myFragment);