Roughly finish iOS version

MainScreen.ios.js

@@ -0,0 +1,44 @@
+'use strict';
+
+var React = require('react-native');
+var {
+  AsyncStorage,
+  Image,
+  StyleSheet,
+  Text,
+  View,
+} = React;
+
+var Drawer = require('react-native-drawer');
+var StoriesList = require('./StoriesList');
+var ThemesList = require('./ThemesList');
+
+var DRAWER_REF = 'drawer';
+
+var MainScreen = React.createClass({
+  onSelectTheme: function(theme) {
+    // this.drawer.closeDrawer();
+    // this.setState({
+    //   isLoading: this.state.isLoading,
+    //   isLoadingTail: this.state.isLoadingTail,
+    //   theme: theme,
+    //   dataSource: this.state.dataSource,
+    // });
+    // this.fetchStories(theme, true);
+  },
+  render: function() {
+    var drawer = <ThemesList onSelectItem={this.onSelectTheme} />;
+    return (
+        <Drawer
+          ref={DRAWER_REF}
+          openDrawerOffset={100}
+          panCloseMask={1}
+          content={drawer} >
+          <StoriesList navigator={this.props.navigator}/>
+        </Drawer>
+      );
+  }
+
+});
+
+module.exports = MainScreen;