add 切换瓶倒后 listView推倒顶部 review by hongmo

@@ -36,6 +36,7 @@ export default class BrandStore extends Component {
         this.renderSectionHeader = this.renderSectionHeader.bind(this);
         this.renderRow = this.renderRow.bind(this);
         this._onPressProductFilter = this._onPressProductFilter.bind(this);
+        this._onPressStoreFilter = this._onPressStoreFilter.bind(this);
 
         this.dataSource = new ListView.DataSource({
             rowHasChanged: (r1, r2) => !Immutable.is(r1, r2),
@@ -50,17 +51,26 @@ export default class BrandStore extends Component {
             this._showToast && this._showToast(showToastMessage);
         }
     }
-    _onPressProductFilter(value){
 
+    _onPressStoreFilter(value){
+        this.props.onPressStoreFilter && this.props.onPressStoreFilter(value);
+        if (value != 3) {
+            if (value == 0) {
+                this.refs.brandStoreList && this.refs.brandStoreList.scrollTo({x: 0, y: Math.ceil((200 / 640) * width), animated: false});
+            }else {
+                this.refs.brandStoreList && this.refs.brandStoreList.scrollTo({x: 0, y: storeFilter_y_Position, animated: false});
+            }
+        }
+    }
+
+    _onPressProductFilter(value){
         if(value === 'filter'){
             this.refs.brandStoreList && this.refs.brandStoreList.scrollTo({x: 0, y: yPosition, animated: false});
         }
         if(value==='default'){
             this.refs.brandStoreList && this.refs.brandStoreList.scrollTo({x: 0, y: yPosition, animated: false});
-
         }
         this.props.onPressProductFilter && this.props.onPressProductFilter(value);
-
     }
 
     _showToast(message){
@@ -88,20 +98,21 @@ export default class BrandStore extends Component {
 
     renderSectionHeader(sectionData, sectionID) {
         switch(sectionID) {
-            case 'brandReource': {
-                return (
-                    <BrandStoreFilter
-                        selectID={this.props.storeFilter}
-                        onPressFilter={this.props.onPressStoreFilter}
-                    />
-                );
-            }
+            case 'brandReource':
             case 'storeFilter': {
+
                 return (
-                    <BrandStoreFilter
-                        selectID={this.props.storeFilter}
-                        onPressFilter={this.props.onPressStoreFilter}
-                    />
+                    <View
+                        style={styles.brandFilterContainer}
+                        onLayout={(evt) => {
+                            storeFilter_y_Position = evt.nativeEvent.layout.y;
+                        }}
+                    >
+                        <BrandStoreFilter
+                            selectID={this.props.storeFilter}
+                            onPressFilter={this._onPressStoreFilter}
+                        />
+                    </View>
                 );
             }
             case 'productList': {
@@ -359,6 +370,7 @@ let rowHeight = Math.ceil(254 * width / 320);
 let rowMarginTop = Math.ceil(10 * width / 320);
 let rowMarginHorizontal = (width - rowWidth * 2) / 3;
 let yPosition = 0;
+let storeFilter_y_Position = 0;
 
 let styles = StyleSheet.create({
     container: {