Make example use local component.

Author: sohobloo

.gitignore

@@ -6,5 +6,3 @@
 .idea
 
 npm-debug.log
-
-example/ModalDropdown.js

components/ModalDropdown.js

@@ -10,7 +10,6 @@ import React, {
 } from 'react';
 
 import {
-  NativeModules,
   StyleSheet,
   Dimensions,
   View,
@@ -71,8 +70,8 @@ export default class ModalDropdown extends Component {
 
     this.state = {
       disabled: props.disabled,
-      accessible: props.accessible !== false,
-      loading: props.options == null,
+      accessible: !!props.accessible,
+      loading: props.options === null || props.options === undefined,
       showDropdown: false,
       buttonText: props.defaultValue,
       selectedIndex: props.defaultIndex