Android : Simple passing data between activity and nested fragments after popBackStack

I have FragmentActivity with FrameLayout and I dynamically add Fragment1 to it. Then after the button click in the Fragment1 I replace it by the Fragment2 :

streetEdit.setOnClickListener(new OnClickListener(){
        @Override
        public void onClick(View v) {
            Log.i(TAG, "onTocuh");
            FragmentTransaction trans = getFragmentManager().beginTransaction();
            trans.replace(R.id.fragment_container, new StreetsFragment()); 
            trans.addToBackStack(null);
            trans.commit();

        }});

Then I need I have list in Fragment2 and when user chooses one of the items, I need to close the Fragment2 and display the data in the Fragment1 . Analog to the onActivityResult for the Activities. I find the popBackStack() method using the best solution because of the simplicity :

  street_list.setOnItemClickListener(new OnItemClickListener(){
                    @Override
                    public void onItemClick(AdapterView<?> parent, View view,
                            int position, long id) {
                        GeoStreet choosed = adapter.getItem(position);
                        Intent intent = new Intent();
                        Bundle bundle = new Bundle();
                        bundle.putParcelable(Constants.CHOOSED_GEOSTREET, choosed);
                        intent.putExtras(bundle);
                        listener.passData(intent);
                        getFragmentManager().popBackStackImmediate();
                    }


                });

I have interface IClickListener and I communicate with it between the Activity and Fragment. listener is the object of the interface.

Then, in the Activity :

@Override
    public void passData(Intent flag) {
        if (flag != null)
        {
            if ( getSupportFragmentManager().findFragmentById(R.id.fragment_container) instanceof StreetsFragment)
            {
                GeoStreet street = flag.getExtras().getParcelable(Constants.CHOOSED_GEOSTREET);
                Toast.makeText(getApplicationContext(), street.getName(), Toast.LENGTH_LONG).show();
                Fragment frag = getSupportFragmentManager().findFragmentById(R.id.fragment_container);
                Log.i(TAG, frag.getClass().toString());
                setStreet(street.getName());

                Bundle bundle = new Bundle();
                bundle.putString(Constants.CHOOSED_GEOSTREET,street.getName());
                if (getSupportFragmentManager().findFragmentById(R.id.fragment_container) instanceof ToStreetFragment)
                    {
                    Log.i(TAG , flag.toString());
                    ToStreetFragment fragment = (ToStreetFragment) getSupportFragmentManager().findFragmentById(R.id.fragment_container);
                    fragment.setStreet(street.getName());
                    }




            }
        }

    }

So, I can get the passed data from the Fragment2 and now I need to pass it to the Fragment1. I don't need to instantiate new Fragment1, but to use existing. I tried to use setters\getters in the Activity, and the get value in the Fragment1, but I've got nothing.

For sure, I can use removing \ adding method, or use SharedPreferences, but I think it can be simple solution. Thank you for yours suggestions.