From 54c6d449f27fc5a629cf24cebeeed00e4f7c2c5f Mon Sep 17 00:00:00 2001
From: Sverre Johansen <sverre.johansen@gmail.com>
Date: Fri, 27 Oct 2017 11:23:19 +0200
Subject: [PATCH] Added missing getItemLayout prop to SectionList

---
 types/react-native/index.d.ts | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/types/react-native/index.d.ts b/types/react-native/index.d.ts
index 2dcec3f6eb..58af56a5ac 100644
--- a/types/react-native/index.d.ts
+++ b/types/react-native/index.d.ts
@@ -3743,6 +3743,18 @@ export interface SectionListProperties<ItemT> extends ScrollViewProperties {
      */
     extraData?: any
 
+    /**
+     * `getItemLayout` is an optional optimization that lets us skip measurement of dynamic
+     * content if you know the height of items a priori. getItemLayout is the most efficient,
+     * and is easy to use if you have fixed height items, for example:
+     * ```
+     * getItemLayout={(data, index) => (
+     *   {length: ITEM_HEIGHT, offset: ITEM_HEIGHT * index, index}
+     * )}
+     * ```
+     */
+    getItemLayout?: (data: SectionListData<ItemT>[] | null, index: number) => {length: number, offset: number, index: number}
+
     /**
      * How many items to render in the initial batch
      */