werein/react-native-dates

import React, { Component } from 'react';
import {
  AppRegistry,
  StyleSheet,
  Text,
  View
} from 'react-native';
import moment from 'moment'
import Dates from 'react-native-dates';

export default class App extends Component {
  state = {
    date: null,
    focus: 'startDate',
    startDate: null,
    endDate: null
  }

  render() {
    const isDateBlocked = (date) =>
        date.format('dddd') === 'Sunday';

    const onDatesChange = ({ startDate, endDate, focusedInput }) =>
        this.setState({ ...this.state, focus: focusedInput }, () =>
            this.setState({ ...this.state, startDate, endDate })
        );

    const onDateChange = ({ date }) =>
        this.setState({ ...this.state, date });


    return (
        <View style={styles.container}>
          <Dates
              onDatesChange={onDatesChange}
              isDateBlocked={isDateBlocked}
              startDate={this.state.startDate}
              endDate={this.state.endDate}
              focusedInput={this.state.focus}
              focusedMonth={ moment('05/09/2030','DD/MM/YYYY')} //optional
              range
          />

          {this.state.date && <Text style={styles.date}>{this.state.date && this.state.date.format('LL')}</Text>}
          <Text style={[styles.date, this.state.focus === 'startDate' && styles.focused]}>{this.state.startDate && this.state.startDate.format('LL')}</Text>
          <Text style={[styles.date, this.state.focus === 'endDate' && styles.focused]}>{this.state.endDate && this.state.endDate.format('LL')}</Text>
        </View>
    );
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    flexGrow: 1,
    marginTop: 20
  },
  date: {
    marginTop: 50
  },
  focused: {
    color: 'blue'
  }
});