react-native - React - 原生抽屉导航导航嵌套导航

Question

目前在我正在构建的 react-native 应用程序中，我有一个包含两个屏幕的 Drawer Navigator。
对于导航，我使用的是 react-navigation。
https://reactnavigation.org/docs/intro/

代码如下，

import { DrawerNavigator } from 'react-navigation'
export  default drawernav = DrawerNavigator(
     {
        Login: {Screen: Login},
        Main : {Screen: Main }
     }
) 

虽然登录在抽屉导航器中，但我想要它，以便登录屏幕没有抽屉导航功能，但主屏幕将登录和主要作为抽屉导航器中的两个选项。
但是，现在登录屏幕也有抽屉导航器。有没有办法让登录抽屉导航功能消失？

Answer 1

请参阅以下帖子，这非常有帮助。
https://github.com/react-navigation/react-navigation/issues/131 .
建议了多种方法。
kyaroru 提供了一个完整的工作示例，如下所示:
https://github.com/kyaroru/ReactNavDrawer .

下面是一个更简单的例子:

应用程序.js

import React from 'react';
import { createStackNavigator , createDrawerNavigator } from 'react-navigation';
import LoginScreen from './LoginScreen';
import SignupScreen from './SignupScreen';
import HomeScreen from './HomeScreen';
import DrawerButton from './DrawerButton';
import SettingScreen from './SettingScreen';

const StackNavigator = createStackNavigator ({

  Login: {
    screen: LoginScreen,
  },

  Signup: {
    screen: SignupScreen,
  },  

  Home: {
    screen: HomeScreen,
  },

  Sitting: {
    screen: SettingScreen,
  },    

}, 
{
      navigationOptions: ({navigation}) => ({
        headerLeft: <DrawerButton navigation={navigation} />,
      }),
}
);

const DrawerNavigator = createDrawerNavigator({
  Menu: {
     screen: StackNavigator,
  },

  Signup: {
    screen: SignupScreen,
  },  

  Sitting: {
    screen: SettingScreen,
  },  

});

export default DrawerNavigator;

抽屉按钮.js

import React from 'react';
import { TouchableOpacity, Platform } from 'react-native';
import Ionicons from 'react-native-vector-icons/Ionicons';
import PropTypes from 'prop-types';


const DrawerButton = ({ navigation }) => (
  <TouchableOpacity
    onPress={() => navigation.openDrawer()}
  >
    <Ionicons name={Platform.OS === 'ios' ? 'ios-menu' : 'md-menu'} size={28}  />
  </TouchableOpacity>
);


DrawerButton.propTypes = {
  navigation: PropTypes.object.isRequired,
};

export default DrawerButton;