Fix UI bug of browse. reviewed by redding.

@@ -116,8 +116,8 @@ export default class Browse extends Component {
                 data={categoryList}
                 selectedCategoryIndex={selectedCategoryIndex}
                 onPressCategory={(rowData, rowID) => {
-                    this.props.onPressCategory && this.props.onPressCategory(rowData, rowID);
                     this.listView && this.listView.scrollTo({x: 0, y: 0, animated: true});
+                    this.props.onPressCategory && this.props.onPressCategory(rowData, rowID);
                 }}
             />
         );