将Remburger按钮添加到React Native Navigation

Question

我对React-Native很新,所以我肯定可能会遗漏一些东西.但我想要做的就是将汉堡包类型按钮添加到主导航栏中的设置页面.我在主要部分设置了一个链接,就像我想要汉堡包按钮一样. 截图

import React from 'react';
import { AppRegistry, Text, View, Button } from 'react-native';
import { StackNavigator } from 'react-navigation';

class HomeScreen extends React.Component {
  static navigationOptions = {
    title: 'Welcome',
    headerLeft: <Button onPress={ WHAT GOES HERE?? } title= "=" />
  };
  render() {
    const { navigate } = this.props.navigation;
    return (
        <Button
          onPress={() => navigate('Settings')}
          title="Link to Settings" />
    );
  }
}

class Settings extends React.Component {
    static navigationOptions = {
        title: 'Settings',
        headerLeft: <Button title= "=" />
    };
    render() {
        return <Text>Hello, Settings!</Text>;
    }
}

const SimpleApp = StackNavigator({
    Home: { screen: HomeScreen },
    Settings: { screen: Settings}
});

AppRegistry.registerComponent('NavPractice', () => SimpleApp);

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>

Answer 1

有了这个,你就非常接近解决方案了.

static navigationOptions = {
  title: 'Welcome',
  headerLeft: <Button onPress={ WHAT GOES HERE?? } title= "=" />
};

鲜为人知的事实是navigationOptions接受返回导航选项的功能.该功能接受一些道具,navigation其中之一.知道这一点,稍微调整你的代码.

static navigationOptions = function(props) {
  return {
    title: 'Welcome',
    headerLeft: <Button onPress={() => props.navigation.navigate('DrawerOpen')} title= "=" />
  }
};

Answer 2

在上面的代码中，您似乎正在向侧边栏添加选项并导航到侧边栏菜单。

//sidebar menu no.1
    class HomeScreen extends React.Component {
      static navigationOptions = {
        title: 'Welcome',
        headerLeft: <Button onPress={//action taken when option in the menu bar is clicked} title= "//the title of the screen where you will navigate and the sidebar menu lable" />
      };
      render() {
        const { navigate } = this.props.navigation;
        return (
            <Button
              onPress={() => navigate('Settings')}
              title="Link to Settings" />
        );
      }
    }

通过这种方式，您可以创建尽可能多的抽屉选项。现在如何组合抽屉选项：

//react navigation为您提供DrawerNavigator API

const MyApp = DrawerNavigator({
  Home: {
    screenA: HomeScreen ,
  },
  Settings: {
    screen: MySettingScreens,
  },
});

抽屉还附带了一个 prop，即 screenProps={/* 该 prop 将作为 props.screenProps */} 传递给屏幕组件和导航选项，如下所示：

<MyApp
  screenProps={/* this prop will get passed to the screen components and nav options as props.screenProps */}
/>

以下是反应导航器提供的用于打开/关闭抽屉的道具。

this.props.navigation.navigate('DrawerOpen'); // open drawer
this.props.navigation.navigate('DrawerClose'); // close drawer

您还可以根据自己的喜好设置抽屉样式，如下所示：

抽屉宽度-抽屉的宽度抽屉位置-选项是向左或向右。默认为左侧位置。contentComponent - 默认情况下，抽屉中没有可用的滚动视图。为了在抽屉中添加滚动视图，您需要contentComponent在配置中添加。contentOptions - 顾名思义，它们用于为活动和非活动抽屉项目（标签）提供颜色。

干杯:)