Preserve original keys of section when passing down to SectionList

README.md

@@ -88,6 +88,9 @@ import { SectionGrid } from 'react-native-super-grid';
 
 All additional props you pass will be passed on to the internal FlatList/SectionList. This means you can make use of various props and methods like `ListHeaderComponent`, `onEndReached`, `onRefresh`...etc. While these are not tested for compatibility, most of them should work as expected.
 
+In **SectionGrid**, `section` argument in methods like `renderSectionHeader`, `renderSectionFooter`, `ItemSeparatorComponent` will slightly different from the actual section you passed. The `data` key in the `section` will be the grouped versions of items (items that go in one row), and the original list of items can be found in `originalData` key. All other keys will remain intact.
+
+
 ## FlatGrid Example
 ```javascript
 import React, { Component } from 'react';

SectionGrid.js

@@ -92,7 +92,6 @@ class SectionGrid extends Component {
       itemDimension,
       staticDimension,
       renderItem,
-      renderSectionHeader,
       onLayout,
       ...restProps
     } = this.props;
@@ -119,9 +118,9 @@ class SectionGrid extends Component {
       const chunkedData = chunkArray(section.data, itemsPerRow);
 
       return {
-        title: section.title,
+        ...section,
         data: chunkedData,
-        actualSection: section,
+        originalData: section.data,
       };
     });
 
@@ -129,11 +128,10 @@ class SectionGrid extends Component {
     return (
       <SectionList
         sections={groupedSections}
-        renderSectionHeader={renderSectionHeader}
         renderItem={({ item, index, section }) => this.renderRow({
           rowItems: item,
           rowIndex: index,
-          section: section.actualSection,
+          section: section,
           isFirstRow: index === 0,
           itemsPerRow,
           rowStyle,