react native登录成功后退出登录，出现两个导航

Question

退出登录

logOut(){
        DeviceEventEmitter.emit('Logout')
        let resetAction = NavigationActions.reset({
            index: 0,
            actions: [
                NavigationActions.navigate({routeName: 'LoginStack'})
            ]
        });
        this.props.navigation.dispatch(resetAction)
    }

再点击登录页的忘记密码后出现了两个导航

请问是什么原因？

Answer 1

自己解决了，加上这段

static navigationOptions = {
        header: null
    }