react-native-paper/example/main.js

/* @flow */

import Expo from 'expo';
import React, { Component } from 'react';
import {
  View,
  StyleSheet,
  Platform,
} from 'react-native';
import {
  Drawer,
  Provider as PaperProvider,
} from 'react-native-paper';
import RootNavigator from './src/RootNavigator';


const DrawerItems = [
  { label: 'Inbox', icon: 'inbox', key: 0 },
  { label: 'Starred', icon: 'star', key: 1 },
  { label: 'Sent mail', icon: 'send', key: 2 },
  { label: 'A very long title that will be truncated', icon: 'delete', key: 3 },
  { label: 'No Icon', key: 4 },
];

class App extends Component {
  state = {
    open: false,
    drawerItemIndex: 0,
  }

  _handleOpenDrawer = () => this.setState({ open: true })

  _handleCloseDrawer = () => this.setState({ open: false })

  _setDrawerItem = index => this.setState({ drawerItemIndex: index })

  _renderDrawerItems = () => {
    return (
      <View style={styles.drawerContent}>
        <Drawer.Section label='Subheader'>
          {DrawerItems.map((props, index) => (
            <Drawer.Item
              {...props}
              key={props.key}
              active={this.state.drawerItemIndex === index}
              onPress={() => this._setDrawerItem(index)}
            />))}
        </Drawer.Section>
      </View>
    );
  };

  render() {
    return (
      <PaperProvider>
        <Drawer
          onOpen={this._handleOpenDrawer}
          onClose={this._handleCloseDrawer}
          open={this.state.open}
          content={this._renderDrawerItems()}
        >
          <RootNavigator />
        </Drawer>
      </PaperProvider>
    );
  }
}

const styles = StyleSheet.create({
  drawerContent: {
    flex: 1,
    marginTop: Platform.OS === 'android' ? 25 : 22,
  },
});

Expo.registerRootComponent(App);