supporting RN 0.25

changed import to support Rn 0.25

Author: Ali Najafizadeh

src/index.js

@@ -1,11 +1,10 @@
-const React = require('react-native');
-const {
+import React, { Component } from 'react';
+import {
   Animated,
-  Component,
   Dimensions,
   ScrollView,
   View
-} = React;
+} from 'react-native';
 
 const styles = require('./styles');