反应原生动作栏并反应原生菜单

Question

I am new to React-Native and love it so far. I am trying to create a screen (for the cross-platform app) with a menu icon on top right and when clicked, I want to open a menu, hopefully with react-native-menu to display 'Sign Out' and 'Account' menu options. Having a hard time figuring out how to invoke the menu after this. Appreciate any help.

 import React, { Component } from 'react';
 import {
       AppRegistry,
       StyleSheet,
       View, 
 } from 'react-native';
 import ActionBar from 'react-native-action-bar';


export test class Main extends Component {

render() {

    return (
            <View style={styles.screen}>
            <ActionBar
            containerStyle={styles.bar}
            backgroundColor='#33cc33'
            rightIcons={[
                         {
                         name: 'menu',
                         onPress: () => console.log('menu clicked'),
                         },
                         ]}
             />
            </View>



                               );
   }
   }


 const styles = StyleSheet.create({
                             screen: {
                             backgroundColor: '#33cc33',
                             flex: 1,
                             paddingTop: 10,
                             alignItems: 'center',
                             //padding: 10
                             },

                             });

AppRegistry.registerComponent('Main', () => Main);

Answer 1

I try to complete with your case, i add library react-native-drawer-layout for create menu drawer layout . You can find in this for installation.

Step 1 - Create menu list (I created a separate to make it easier when I want to add another menu), It's content only ArrayList. I called that file Constants , and you can write in Constants.js like :

 export const MENU_LIST = [ { index: 1, name: 'Action' }, { index: 2, name: 'Sign Out' }, ] 

Step 2 - I create Menu component for showing menu list. In Menu.js you write like :

 import React, { Component } from 'react'; import { View, ScrollView, Text, TouchableOpacity } from 'react-native'; const menuList = require('./Constants.js'); export default class Menu extends Component { render() { return ( <View style={{ flex:1, backgroundColor: '#33cc33'}}> <ScrollView> {menuList.MENU_LIST.map(item => ( <TouchableOpacity key={item.index} onPress={() => console.log('entered menu')} > <Text style={{color: 'white', fontSize: 16, paddingLeft: 20, paddingTop: 16}}>{item.name}</Text> </TouchableOpacity> ))} </ScrollView> </View> ); } } 

Step 3 - Refactor main component like :

 import React, { Component } from 'react'; import { AppRegistry, StyleSheet, View } from 'react-native'; import ActionBar from 'react-native-action-bar'; import DrawerLayout from 'react-native-drawer-layout'; import Menu from './Menu'; export default class App extends Component { constructor(props) { super(props); this.state = { drawerClosed: true, }; this.toggleDrawer = this.toggleDrawer.bind(this); this.setDrawerState = this.setDrawerState.bind(this); } setDrawerState() { this.setState({ drawerClosed: !this.state.drawerClosed, }); } toggleDrawer = () => { if (this.state.drawerClosed) { this.DRAWER.openDrawer(); } else { this.DRAWER.closeDrawer(); } } render() { return ( <DrawerLayout drawerWidth={300} ref={drawerElement => { this.DRAWER = drawerElement; }} drawerPosition={DrawerLayout.positions.left} onDrawerOpen={this.setDrawerState} onDrawerClose={this.setDrawerState} renderNavigationView={() => <Menu />} > <ActionBar containerStyle={styles.bar} backgroundColor="#33cc33" leftIconName={'menu'} onLeftPress={this.toggleDrawer}/> </DrawerLayout> ); } } const styles = StyleSheet.create({ screen: { backgroundColor: '#33cc33', flex: 1, paddingTop: 10, alignItems: 'center', //padding: 10 }, }); AppRegistry.registerComponent('Main', () => App); 

In my emulator, that will display like:

and when i klik menu icon, that will display like:

UPDATE-1 :

if you want to make component drawer menu not fills up to bottom, you can play on style in component <Menu /> , i give margin for wrapper like:

 const styles = StyleSheet.create({ wrapper: { backgroundColor: '#33cc33', marginTop: 50, }, listMenu: { color: 'white', fontSize: 16, paddingLeft: 20, paddingTop: 12, paddingBottom: 12, } }); 

And add style to component in <Menu /> like :

 export default class Menu extends Component { render() { return ( <View style={styles.wrapper}> //add style wrapper <ScrollView> {menuList.MENU_LIST.map(item => ( <TouchableOpacity key={item.index} onPress={() => console.log('entered menu')} > <Text style={styles.listMenu}>{item.name}</Text> //add style menu </TouchableOpacity> ))} </ScrollView> </View> ); } } 

Full code in Menu.js like :

 import React, { Component, PropTypes } from 'react'; import { View, ScrollView, Text, TouchableOpacity, Image, StyleSheet } from 'react-native'; import Icon from 'react-native-vector-icons/MaterialIcons'; const menuList = require('./Constants.js'); export default class Menu extends Component { render() { return ( <View style={styles.wrapper}> <ScrollView> {menuList.MENU_LIST.map(item => ( <TouchableOpacity key={item.index} onPress={() => console.log('entered menu')} > <Text style={styles.listMenu}>{item.name}</Text> </TouchableOpacity> ))} </ScrollView> </View> ); } } const styles = StyleSheet.create({ wrapper: { backgroundColor: '#33cc33', marginTop: 50, }, listMenu: { color: 'white', fontSize: 16, paddingLeft: 20, paddingTop: 12, paddingBottom: 12, } }); 

And the result like :

---

UPDATE-2 :

based on your case in the comments, if you want to change position menu to the right. You must change position the drawer first.

Actually :

• i set drawer half the screen and postion in the left. You can see in main file like :

  render() { return ( <DrawerLayout /* This for set width drawer */ drawerWidth={300} /* end */ ref={drawerElement => { this.DRAWER = drawerElement; }} /* This for set position drawer */ drawerPosition={DrawerLayout.positions.left} /* end */ onDrawerOpen={this.setDrawerState} onDrawerClose={this.setDrawerState} renderNavigationView={() => <Menu />} > <ActionBar containerStyle={styles.bar} backgroundColor="#33cc33" leftIconName={'menu'} onLeftPress={this.toggleDrawer} /> </DrawerLayout> ); } 

Hopelly :

• i set the menu options on the right. You just change position drawer like :

  render() { return ( <DrawerLayout drawerWidth={300} ref={drawerElement => { this.DRAWER = drawerElement; }} // i change the position to the right. drawerPosition={DrawerLayout.positions.Right} onDrawerOpen={this.setDrawerState} onDrawerClose={this.setDrawerState} renderNavigationView={() => <Menu />} > <ActionBar containerStyle={styles.bar} backgroundColor="#33cc33" rightIcons={[ { name: 'menu', onPress: this.toggleDrawer, }, ]} /> </DrawerLayout> ); } 

if you want to learn about DrawerLayout on Android you can read the documentation.

• API DrawerLayoutAndroid

for the case, my emulator showing like :

---

I hope my answer can to help you and give your another idea to develop your apps. fighting... ;))

Answer 2

i use native-base library to create menu, this is the documentation. you can try to search component you needed

https://docs.nativebase.io/Components.html#Components

this is one example i tried to make a menu

/** * Sample React Native App * https://github.com/facebook/react-native * @flow */

import React, { Component } from 'react';
import { AppRegistry } from 'react-native';
import { Container, Content, Header, Body, Right, Button, Icon, Title, Drawer, Text } from 'native-base';

class SideBar extends Component {
  render(){
    return(
      <Content style={{ backgroundColor: '#FFF' }} >
          <Text>Account</Text>
          <Text>SignOut</Text>
      </Content>
    )
  }
}

export default class App extends Component {
  closeDrawer = () => {
    this.drawer._root.close()
  }
  openDrawer = () => {
    this.drawer._root.open()
  }
  render(){
    return(
      <Drawer
        ref={(ref) => { this.drawer = ref; }}
        content={<SideBar navigator={this.navigator} />}
        onClose={() => this.closeDrawer()} >
          <Container>
            <Header>
              <Body>
                <Title>Header</Title>
              </Body>
              <Right>
                <Button transparent onPress={this.openDrawer} >
                  <Icon name='menu' />
                </Button>
              </Right>
            </Header>
          </Container>
      </Drawer>
    )
  }
}

AppRegistry.registerComponent('Main', () => App);

you can style your own menu. maybe it can help you, thanks :)

Answer 3

react-native-modal-dropdown implement these things

+import ModalDropdown from 'react-native-modal-dropdown';
class FooBar extends PureComponent {
     constructor(props) {
         super(props);
+        this.dropdownOptions = [{
+            text: 'Scan',
+            icon: require('../images/scan.png'),
+            onPress: this.toScan,
+        }, {
+            text: 'Share',
+            icon: require('../images/share.png'),
+            onPress: this.toShare,
+        }];


+    adjustDropdownStyle = style => {
+        return {
+            width: 110,
+            height: 96, // calculated from margin and height of renderDropdownItem bellow
+            right: 0,
+            top: style.top,
+        };
+    }
+
+    renderDropdownItem = (item, index, highlighted) => {
+        return (
+            <View style={{alignItems: 'center', flexDirection: 'row'}}>
+                <Image source={item.icon} style={{margin: 10, width: 28, height: 28 }}/>
+                <Text style={{fontSize: 15}}>
+                    {item.text}
+                </Text>
+            </View>
+        );
+    }
+
+    onDropdownSelect = (index, item) => item.onPress()
+
     render() {
        let navs = {
            Center: {
                text: 'Home',
            },
            Right: {
                image: require('../images/more.png'),
+                onPress: () => this.dropdown && this.dropdown.show(),
            },
        };

                  <Header navs={navs}/>
+                <ModalDropdown
+                    ref={view => {this.dropdown = view;}}
+                    style={{height: 0}}
+                    adjustFrame={this.adjustDropdownStyle}
+                    options={this.dropdownOptions}
+                    renderRow={this.renderDropdownItem.bind(this)}
+                    onSelect={this.onDropdownSelect.bind(this)}
+                />