From 934c50fbe07e49391ba27c3469f99bec65e48d39 Mon Sep 17 00:00:00 2001
From: Mehdi Mulani <mehdi@fb.com>
Date: Thu, 12 Jul 2018 10:30:27 -0700
Subject: [PATCH] Fix crash in RCTImagePicker on iOS

Summary:
@public
Apparently if you select images really quickly, the app will crash.

Reviewed By: shergin

Differential Revision: D8796730

fbshipit-source-id: 81a652d9c8997ee9e83bbee3378954a6718a9b5d
---
 Libraries/CameraRoll/RCTImagePickerManager.m | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Libraries/CameraRoll/RCTImagePickerManager.m b/Libraries/CameraRoll/RCTImagePickerManager.m
index 1ee31752f..4da2a6490 100644
--- a/Libraries/CameraRoll/RCTImagePickerManager.m
+++ b/Libraries/CameraRoll/RCTImagePickerManager.m
@@ -153,6 +153,11 @@ didFinishPickingMediaWithInfo:(NSDictionary<NSString *, id> *)info
 - (void)_dismissPicker:(UIImagePickerController *)picker args:(NSArray *)args
 {
   NSUInteger index = [_pickers indexOfObject:picker];
+  if (index == NSNotFound) {
+    // This happens if the user selects multiple items in succession.
+    return;
+  }
+
   RCTResponseSenderBlock successCallback = _pickerCallbacks[index];
   RCTResponseSenderBlock cancelCallback = _pickerCancelCallbacks[index];