Merge pull request #1 from Assem-Hafez/patch-2

updated code to work on react >=0.46

Author: Basem Saadawy

DatePickerIOS.js

@@ -1,38 +1,19 @@
-
 'use strict';
 import React, { Component } from 'react';
+import PropTypes from 'prop-types';
 import {
   StyleSheet,
-  Text,
   View,
   NativeModules,
   requireNativeComponent,
 } from 'react-native';
 
-const DatePickerIOS = React.createClass({
-  propTypes: {
-    date: React.PropTypes.oneOfType([React.PropTypes.string, React.PropTypes.number]),
-    onChange: React.PropTypes.func,
-    maximumDate: React.PropTypes.oneOfType([React.PropTypes.string, React.PropTypes.number]),
-    minimumDate: React.PropTypes.oneOfType([React.PropTypes.string, React.PropTypes.number]),
-    mode: React.PropTypes.oneOf(['date', 'time', 'datetime']),
-    timeZoneOffsetInMinutes: React.PropTypes.number,
-    dateFormat: React.PropTypes.string,
-    calendar: React.PropTypes.string,
-  },
-  getDefaultProps: function () {
-    return {
-      mode: 'datetime',
-      date: new Date().getTime(),
-      dateFormat: "dd-MM-yyyy",
-      calendar: "Gregorian"
-    };
-  },
-  _onChange(event) {
+class DatePickerIOS extends Component {
+  _onChange = (event) => {
     const timestamp = event.nativeEvent.timestamp;
     const date = event.nativeEvent.date;
     this.props.onChange && this.props.onChange({ date, timestamp });
-  },
+  }
   render() {
     const props = this.props;
     return (
@@ -50,12 +31,28 @@ const DatePickerIOS = React.createClass({
       </View>
     );
   }
-});
+};
+DatePickerIOS.propTypes = {
+  date: PropTypes.oneOfType([PropTypes.string, PropTypes.number]),
+  onChange: PropTypes.func,
+  maximumDate: PropTypes.oneOfType([PropTypes.string, PropTypes.number]),
+  minimumDate: PropTypes.oneOfType([PropTypes.string, PropTypes.number]),
+  mode: PropTypes.oneOf(['date', 'time', 'datetime']),
+  timeZoneOffsetInMinutes: PropTypes.number,
+  dateFormat: PropTypes.string,
+  calendar: PropTypes.string,
+}
+DatePickerIOS.defaultProps = {
+  mode: 'datetime',
+  date: new Date().getTime(),
+  dateFormat: "dd-MM-yyyy",
+  calendar: "Gregorian"
+};
 const styles = StyleSheet.create({
   datePickerIOS: {
     height: 216,
   },
 });
 
 var RCTDatePickerIos = requireNativeComponent("RCTDatePickerIos", DatePickerIOS);
-module.exports = DatePickerIOS;
+module.exports = DatePickerIOS;