From 81ca7edca2c370eb984a91ce97fd42ab5a4a18ee Mon Sep 17 00:00:00 2001
From: Yousef <yousefdardiry@gmail.com>
Date: Mon, 19 Mar 2018 10:54:47 +0100
Subject: [PATCH 1/2] BackHandlerStatic returns NativeEventSubscription

---
 types/react-native/index.d.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/types/react-native/index.d.ts b/types/react-native/index.d.ts
index 5abf96e04c..bbceb07226 100644
--- a/types/react-native/index.d.ts
+++ b/types/react-native/index.d.ts
@@ -6550,7 +6550,7 @@ export interface BackAndroidStatic {
  */
 export interface BackHandlerStatic {
     exitApp(): void;
-    addEventListener(eventName: BackPressEventName, handler: () => void): void;
+    addEventListener(eventName: BackPressEventName, handler: () => void): NativeEventSubscription;
     removeEventListener(eventName: BackPressEventName, handler: () => void): void;
 }
 

From 79c3fcfe44a3d2a3adac9bb0bef068fd586603f8 Mon Sep 17 00:00:00 2001
From: Yousef El-Dardiry <yousefdardiry@gmail.com>
Date: Mon, 19 Mar 2018 19:35:02 +0100
Subject: [PATCH 2/2] add test for backhandler

---
 types/react-native/test/index.tsx | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/types/react-native/test/index.tsx b/types/react-native/test/index.tsx
index 879a0c522d..65db445695 100644
--- a/types/react-native/test/index.tsx
+++ b/types/react-native/test/index.tsx
@@ -17,6 +17,7 @@ import {
     AppState,
     AppStateIOS,
     BackAndroid,
+    BackHandler,
     Button,
     DataSourceAssetCallback,
     DeviceEventEmitterStatic,
@@ -73,6 +74,8 @@ function testDimensions() {
     Dimensions.removeEventListener('change', dimensionsListener);
 }
 
+BackHandler.addEventListener("hardwareBackPress", () => {}).remove();
+
 BackAndroid.addEventListener("hardwareBackPress", () => {});
 
 interface LocalStyles {