版本

• react-native-router-flux v3.2.13
• 反应原生 v0.24.0-rc2

如果我有初始场景是搜索的场景：

export default Actions.create(
  <Scene key="root"  titleStyle={{ fontSize: 20, fontFamily: 'Avenir-Roman', color: 'white' }} navigationBarStyle={{ backgroundColor: '#1db198', height: 80, borderBottomWidth: 0 }} >
    <Scene key="signin" component={SignIn} title="Accedi all'App" />
    <Scene key="signup" component={SignUp} title="Crea il tuo account" />
    <Scene key="checkPhone" component={CheckPhone} title="Codice di sicurezza" />
    <Scene key="search" component={Search} title="Search" initial={true} />
  </Scene>
);

但我重定向到登录场景：

class Search extends Component {

  constructor(props) {
    super(props);
  }

  componentWillMount() {
    this.checkAuth();
  }

  checkAuth(){

    if( this.props.auth_token && this.props.user_id ) {
      //Check if valid
      console.log( 'Log: ' + this.props.auth_token )
      return
    }
    Actions.signin()
  }

  render() {

    return (
      <FLayout>
        <View>
          <Text style={sharedStyle.welcome}>
            YO!
          </Text>
        </View>
      </FLayout>
    );
  }
}

如果我想在登录场景中隐藏 backButton ？？？如何？