React-native-router-flux: Is there a way to hide navbar when orientation changes?

You may implement your own NavBar and pass it to the Scene. I'm using something like that

onLayout({nativeEvent}){
        const isPortrait = nativeEvent.layout.width === WIDTH;
        if (isPortrait){
            if (this.state.height != NAVBAR_HEIGHT_PORTRAIT){
                this.setState({height: NAVBAR_HEIGHT_PORTRAIT, delta:STATUS_BAR_HEIGHT});
            }
        } else {
            if (this.state.height != NAVBAR_HEIGHT_LANDSCAPE){
                this.setState({height: NAVBAR_HEIGHT_LANDSCAPE, delta:0});
            }
        }
    }

    render(){
        return (
            <View onLayout={this.onLayout.bind(this)} style={[styles.container, {height:this.state.height}, this.props.style]} >
                {this.props.navBarHeader}
                <View style={[styles.container, {height:this.state.height}, this.props.style]} >
                    <View style={{height:this.state.delta,flex:1}}></View>
                    <View style={{height:this.state.height-this.state.delta, flexDirection:'row'}}>
                        {this.props.navigationState.children.length > 1 ? this.renderBackButton(this.props) : this.renderLeftButton(this.props)}
                        <View style={{flex:1,justifyContent:'center',alignItems:'center'}}>
                            {this.renderTitle(this.props)}
                        </View>
                        {this.renderRightButton(this.props)}
                    </View>
                    {this.props.footer}
                </View>
            </View>
        );
    }

Maybe we could incorporate such logic within the components NavBar if community will want it and submit PR.

Yes I am using something similar, albeit simpler -

  onLayout = event => {
    const { width, height } = event.nativeEvent.layout;
    var newStyle;

    if (width > height) {
      newStyle = update(this.state.style, {marginTop: {$set: 0}});
    } else {
      newStyle = update(this.state.style, {marginTop: {$set: 64}});
    }
    this.setState({style: newStyle});

    // hide navbar in landscape mode
    Actions.refresh({hideNavBar: (width > height)});
  }

Hey @vinayr im trying to do something similar but, on my scene i got

componentDidMount(){
   Actions.refresh({hideNavBar:false});
}

componentWillUnmount(){
   Actions.refresh({hideNavBar: true})
}

So when im leaving the scene the navbar, but also reloads the state or something like that, cuz the previous scene had a validation that pushed to the current scene, and when i go back it redirects again to the scene.