解决数据丢失的问题。

@@ -93,6 +93,9 @@ export default class Brand extends Component {
         let title = sectionID == '0-9' ? '0' : sectionID;
         // console.log(sectionID);
         // console.log(rowData);
+        // if (sectionID == '0-9') {
+        //     console.log('should appears!!!!!!!!!!!!!!');
+        // }
         return (
             <View  onLayout={this.onLayout.bind(this, sectionID)}>
                 <BLKBrandCell title={title} rowData={rowData} onPressBrandItem={this.props.onPressBrandItem}/>
@@ -137,9 +140,16 @@ export default class Brand extends Component {
 
         list = data ? data.get('all_list') : null;
         let newList = {};
-        list && list.map((value, key) => {
-            newList[key] = [value.toArray()];
-        });
+        let keyList = list? list.keySeq().toArray().sort():[];
+        for (var i = 0; i < keyList.length; i++) {
+            let key = keyList[i];
+            // console.log(list.get(key).toArray());
+            let item = list.get(key).toArray();
+            if (item.length) {
+                newList[key] = [list.get(key).toArray()];
+            }
+        }
+
         // console.log(newList);
         // console.log('aaaaa');
         // console.log(data?data.toJS():'null');
@@ -166,7 +176,7 @@ export default class Brand extends Component {
                     showsVerticalScrollIndicator={showsVerticalScrollIndicator}
                     renderHeader={this.renderHeader}
                 />
-                <IndexListView dataSource={list.keySeq().toArray()} onLetterPress={this.scrollToSection}/>
+                <IndexListView dataSource={list.keySeq().toArray().sort()} onLetterPress={this.scrollToSection}/>
                 <LoadingIndicator
                     isVisible={isFetching}
                 />