From 4af2501e8e5e6ac264928c111d8cdb60b8be4c6c Mon Sep 17 00:00:00 2001
From: Dave Miller <dmmiller@fb.com>
Date: Fri, 18 Sep 2015 08:40:49 -0700
Subject: [PATCH] Remove an existing UIAlertViews when invalidating the
 RCTAlertManager

Reviewed By: @nicklockwood

Differential Revision: D2456795
---
 React/Modules/RCTAlertManager.h | 3 ++-
 React/Modules/RCTAlertManager.m | 7 +++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/React/Modules/RCTAlertManager.h b/React/Modules/RCTAlertManager.h
index b6fb21762..156531e39 100644
--- a/React/Modules/RCTAlertManager.h
+++ b/React/Modules/RCTAlertManager.h
@@ -10,7 +10,8 @@
 #import <UIKit/UIKit.h>
 
 #import "RCTBridgeModule.h"
+#import "RCTInvalidating.h"
 
-@interface RCTAlertManager : NSObject <RCTBridgeModule>
+@interface RCTAlertManager : NSObject <RCTBridgeModule, RCTInvalidating>
 
 @end
diff --git a/React/Modules/RCTAlertManager.m b/React/Modules/RCTAlertManager.m
index 261418b0d..b0475e231 100644
--- a/React/Modules/RCTAlertManager.m
+++ b/React/Modules/RCTAlertManager.m
@@ -40,6 +40,13 @@ RCT_EXPORT_MODULE()
   return dispatch_get_main_queue();
 }
 
+- (void)invalidate
+{
+    for (UIAlertView *alert in _alerts) {
+        [alert dismissWithClickedButtonIndex:0 animated:YES];
+    }
+}
+
 /**
  * @param {NSDictionary} args Dictionary of the form
  *