Receive all the items stored in my database (Firebase)

This is how I generate item's with a different name automatically in my database of Firebase and send it to it.

public class MainActivity extends AppCompatActivity {
    private String FIREBASE_URL = "miurl";
    // genero un item distinto
    private String FIREBASE_CHILD = "item_"+ (int) System.currentTimeMillis();
    EditText nombre;
    Firebase firebase;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        nombre = (EditText) findViewById(R.id.nombre);

        ButterKnife.bind(this);
        Firebase.setAndroidContext(this);
        firebase = new Firebase(FIREBASE_URL).child(FIREBASE_CHILD);
    }

    // envio a firebase

    @OnClick(R.id.button)
    public void writeToFirebase() {
        firebase.setValue("Nombre:" + " " + nombre.getText());
    }
}

So far so good, but now when I want to receive the data in another clase , I only receive the item that I assign in private String FIREBASE_CHILD = "item";

public class Main2Activity extends AppCompatActivity {
    private String FIREBASE_URL = "miurl";
    // solo recibo el item que asigne aquí
    private String FIREBASE_CHILD = "item";
    @Bind(R.id.editText)
    TextView editText;
    Firebase firebase;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);

        ButterKnife.bind(this);
        Firebase.setAndroidContext(this);
        firebase = new Firebase(FIREBASE_URL).child(FIREBASE_CHILD);

        firebase.addValueEventListener(new ValueEventListener() {
            @Override
            public void onDataChange(DataSnapshot snapshot) {
                if (snapshot.getValue() != null) {
                    // recibo en mi textview
                    editText.setText(snapshot.getValue().toString());
                    Log.e(getLocalClassName(), snapshot.getValue().toString());
                }
            }

            @Override
            public void onCancelled(FirebaseError error) {
            }
        });
    }
}

How can I receive all item's in different TextView ?