增加了品类loading加载。review by 于良。

@@ -12,6 +12,7 @@ import ReactNative, {
 } from 'react-native';
 
 import ChannelSelector from '../../../common/components/ChannelSelector';
+import LoadingIndicator from '../../../common/components/LoadingIndicator';
 import CategoryList from './CategoryList';
 
 
@@ -23,6 +24,8 @@ export default class Category extends Component {
 
     render() {
 
+        let {isFetching} = this.props;
+
         return (
             <View style={styles.container}>
                 <ChannelSelector selectedChannelValue={this.props.currentChannelId} onSelectChannel={this.props.onSelectChannel} />
@@ -33,6 +36,8 @@ export default class Category extends Component {
                     currentChannelId={this.props.currentChannelId}
                     pressSubCateRow={this.props.pressSubCateRow}
                 />
+
+                <LoadingIndicator isVisible={isFetching} />
             </View>
         );
     }

@@ -112,6 +112,7 @@ class CategoryContainer extends Component {
 
     render() {
         let {
+            isFetching,
             categoryList,
             currentChannelId,
             currentCateId,
@@ -120,6 +121,7 @@ class CategoryContainer extends Component {
         return (
             <View style={styles.container}>
                 <Category
+                    isFetching={isFetching}
                     categoryList={categoryList}
                     currentChannelId={currentChannelId}
                     currentCateId={currentCateId}

@@ -3,6 +3,7 @@
 import {Record, List, Map} from 'immutable';
 
 let InitialState = Record({
+	isFetching: false,
 	currentChannelId: 'boy',
 	currentCateId: '0',
 	categoryList: new (Record({

@@ -5,11 +5,14 @@ import Immutable, {Map} from 'immutable';
 
 const {
 	SET_TYPE,
-	GET_CATEGORY_SUCCESS,
 
 	SET_CURRENT_CATEGORY_ID,
 	SET_CURRENT_CHANNEL_ID,
 
+	GET_CATEGORY_REQUEST,
+	GET_CATEGORY_SUCCESS,
+	GET_CATEGORY_FAILURE,
+
 	JUMP_TO_CATEGORY,
 } = require('../../constants/actionTypes').default;
 
@@ -21,6 +24,9 @@ export default function categoryReducer(state=initialState, action) {
 		case SET_TYPE: {
 			return state.set('type', action.payload);
 		}
+		case GET_CATEGORY_REQUEST: {
+			return state.set('isFetching', true);
+		}
 		case GET_CATEGORY_SUCCESS:{
 			let {
 				boy,
@@ -31,7 +37,11 @@ export default function categoryReducer(state=initialState, action) {
 			return state.setIn(['categoryList', 'boy'],Immutable.fromJS(boy))
 						.setIn(['categoryList', 'girl'],Immutable.fromJS(girl))
 						.setIn(['categoryList', 'kids'],Immutable.fromJS(kids))
-						.setIn(['categoryList', 'lifestyle'],Immutable.fromJS(lifestyle));
+						.setIn(['categoryList', 'lifestyle'],Immutable.fromJS(lifestyle))
+						.set('isFetching', false);
+		}
+		case GET_CATEGORY_FAILURE: {
+			return state.set('isFetching', false);
 		}
 		case SET_CURRENT_CATEGORY_ID:{
 			return state.set('currentCateId',Immutable.fromJS(action.payload));