gistfile1.txt

public class MainActivity extends AppCompatActivity {

  private Router router;

  @Override protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    ViewGroup container = (ViewGroup)findViewById(R.id.controller_container);

    router = Conductor.attachRouter(this, container, savedInstanceState);
    if (!router.hasRootController()) {
      router.setRoot(RouterTransaction.with(new HomeController()));
    }
  }

  @Override
  public void onBackPressed() {
    if (!router.handleBack()) {
      super.onBackPressed();
    }
  }
}