react Navigation 3.x 从标题按钮打开抽屉？

Question

我想在顶部创建一个标题，每个屏幕的标题和右侧的按钮在反应导航 3.x 中打开抽屉

在下面的代码中，标题没有显示。

//用当前代码更新

  import React, { Component } from 'react';
import { Button } from 'react-native';
import {
  createStackNavigator,
  createDrawerNavigator,
  createAppContainer
} from 'react-navigation';

import MyHomeScreen from './components/HomeScreen';
import MyNotificationsScreen from './components/ProfileScreen';

const MyDrawerNavigator = createDrawerNavigator(
  {
    Home: {
      screen: MyHomeScreen
    },
    Notifications: {
      screen: MyNotificationsScreen
    }
  },
  {
    initialRouteName: 'Home',
    navigationOptions: navigationOptionsHeader
  }
);

const navigationOptionsHeader = ({ navigation }) => {
  return {
    headerTitle: 'MY Home',
    headerRight: (
      <Button
        onPress={() => navigation.toggleDrawer()}
        title="Info"
        color="#222"
      />
    )
  };
};

const AppContainer = createAppContainer(MyDrawerNavigator);

class App extends Component {
  render() {
    return <AppContainer />;
  }
}
export default App;

Answer 1

在你的屏幕类中使用它

 static navigationOptions = ({ navigation }) => {
        return {
        title: 'Home',
        headerLeft: (
          < Icon name="menu" size={30} style={{marginStart:10}} backgroundColor="#000000" onPress={() => navigation.openDrawer()} > < /Icon>
        ),
      };
    };

Answer 2

尝试这个

const MyDrawerNavigator = createDrawerNavigator(
      {
        Home: {
          screen: MyHomeScreen
        },
        Notifications: {
          screen: MyNotificationsScreen
        }
      },
      {
        initialRouteName: 'Home'
     navigationOptions: navigationOptionsHeader,

      }
    );


    const navigationOptionsHeader=({navigation})=>{


        return {

      headerRight: (
          <Button
            onPress={() => navigation.toggleDrawer();
    }
            title="Info"
            color="#222"
          />
        )
      };

    }

您还可以像这样在标题中添加其他内容

    const navigationOptionsHeader=({navigation})=>{


        return {

      headerRight: (
          <Button
            onPress={() => navigation.toggleDrawer();
    }
            title="Info"
            color="#222"
          />
        )

  headerLeft : <headerLeft/>,
  title: //Header Title
  headerStyle: { backgroundColor: '#161616', height:48, },
  headerTitleStyle:{ color:'#cd9bf0', fontWeight: '400', alignSe
      };

    }