add 分类 多次刷新的bug review by hongmo

@@ -275,7 +275,7 @@ export default class Brand extends Component {
                     Platform.OS === 'ios' ?
                         <ListView
                             ref={(ref)=>this.listView=ref}
-                            initialListSize={initialListSize}
+                            initialListSize={2000}
                             contentContainerStyle={contentContainerStyle}
                             enableEmptySections={true}
                             dataSource={listDataSource}

@@ -41,7 +41,7 @@ export function getCategoryBList() {
 		return new CategoryBService(app.host).getCategoryBList()
 	        .then(json => {
 				dispatch(getCategoryBListSuccess(json));
-				
+
 				dispatch(getCategoryBFirstSubCategoryDetail(categoryB.currentChannelId));
 			})
 			.catch(error => {
@@ -61,7 +61,7 @@ export function pressCategoryBMore(category_id){
 		let categoryData = categoryB.categoryList ? categoryB.categoryList.get(categoryB.currentChannelValue) : [];
 
 		//获取指定category_id分类信息
-		let category = null; 
+		let category = null;
 		categoryData.map((item, i) => {
 			if(item && (category_id == item.get('category_id'))){
 				category = item;
@@ -78,7 +78,7 @@ export function pressCategoryBMore(category_id){
         //设置当前的类别信息
     	// dispatch(setCurrentCateB(category_id, category ? category.get('category_name') : ""));
         dispatch(jumpToCategory(all, 0, categoryB.currentChannelId));
-        
+
 	};
 }
 
@@ -130,6 +130,7 @@ export function getCategoryBSubCategoryDetail(categoryId, categoryValue){
             currentCateId,
             currentCateValue,
             cacheSubCateData,
+			contentError,
         } = categoryB;
 
         //检查缓存是否存在数据
@@ -140,16 +141,24 @@ export function getCategoryBSubCategoryDetail(categoryId, categoryValue){
 	    	let lastTimestamp = categoryData.get('lrts', 0);
 	    	let currentTimestamp = new Date().getTime();
 	    	let diff = currentTimestamp - lastTimestamp;
-	    	if (diff < 250) {
+	    	if (diff < 400) {
 	    		__DEV__ && console.log('timestamp diff < 50, return');
 	    		return;
 	    	}
 	    }
 
+		if (contentError) {
+			let lastTimestamp = contentError.lrts;
+	    	let currentTimestamp = new Date().getTime();
+	    	let diff = currentTimestamp - lastTimestamp;
+	    	if (diff < 400) {
+	    		__DEV__ && console.log('timestamp diff < 50, return');
+	    		return;
+	    	}
+		}
 		if (currentCateId == categoryId && categoryB.contentFetching) {
 			return;
 		}
-
         dispatch(getCategoryBSubDetail(currentChannelId, categoryId, categoryValue));
 	};
 }
@@ -201,9 +210,10 @@ export function getCategoryBSubDetail(channel_id, category_id, category_value) {
 	        	//曝光从网络获取的数据
 				dispatch(dataExposure(channel_id, category_id, category_value, json));
 	        }
-			
+
 		})
 		.catch(error => {
+			error.lrts = new Date().getTime();
 			dispatch(getCategoryBSubDetailFailure(error));
 		});
 	};
@@ -432,4 +442,4 @@ function dataExposure(channel_id, category_id, category_value, json) {
 
 		}
 	};
-}
\ No newline at end of file
+}

@@ -14,6 +14,7 @@ let InitialStateB = Record({
 	categoryList: Map(),
 	contentFetching: false,
 	delayExposeData: true,
+	contentError: null,
 });
 
 export default InitialStateB;

@@ -53,11 +53,12 @@ export default function categoryBReducer(state=initialStateB, action) {
 			let {key, data} = action.payload;
 			return state.set('contentFetching', false)
 				.set('currentSubCateData', Immutable.fromJS(data))
+				.set('contentError', null)
 				.setIn(['cacheSubCateData', key], Immutable.fromJS(data));
 
 		}
 		case GET_CATEGORY_B_SUBDETAIL_FAILURE: {
-			return state.set('contentFetching', false);
+			return state.set('contentFetching', false).set('contentError', action.payload);
 		}
 		case SET_CURRENT_CATEGORY_B:{
 			return state.set('currentCateId',action.payload.id)

@@ -50,7 +50,7 @@ export default class CouponCell extends React.Component {
 
 		let backgroundHeigth = showDetail ? topBackgroundHeigth + detailBackgroundHeigth + 20 : topBackgroundHeigth + 20;
 		return (
-            <View style={{width: width,	height: backgroundHeigth}}>
+            <View style={{width: width,	height: backgroundHeigth,backgroundColor: 'white'}}>
                 <View style={{width: width,height: 20,backgroundColor: 'white',}}/>
 				<Image source={require('../../image/coupon1_tip_bg.png')} style={styles.couponBackgroundImage}></Image>
 				<View style={styles.topContent}>