Merge pull request #43658 from software-mansion-labs/fix-for-android-hybrid-back

[HybridApp] Fix android back button behaviour - NewDot part

Author: AndrewGable

src/libs/Navigation/setupCustomAndroidBackHandler/index.android.ts

@@ -1,6 +1,6 @@
 import {findFocusedRoute, StackActions} from '@react-navigation/native';
 import type {StackScreenProps} from '@react-navigation/stack';
-import {BackHandler} from 'react-native';
+import {BackHandler, NativeModules} from 'react-native';
 import getTopmostCentralPaneRoute from '@navigation/getTopmostCentralPaneRoute';
 import navigationRef from '@navigation/navigationRef';
 import type {BottomTabNavigatorParamList, RootStackParamList, State} from '@navigation/types';
@@ -23,6 +23,12 @@ function setupCustomAndroidBackHandler() {
             return false;
         }
 
+        const isLastScreenOnStack = bottomTabRoutes.length === 1 && rootState.routes.length === 1;
+
+        if (NativeModules.HybridAppModule && isLastScreenOnStack) {
+            NativeModules.HybridAppModule.exitApp();
+        }
+
         // Handle back press on the search page.
         // We need to pop two screens, from the central pane and from the bottom tab.
         if (bottomTabRoutes[bottomTabRoutes.length - 1].name === SCREENS.SEARCH.BOTTOM_TAB && focusedRoute?.name === SCREENS.SEARCH.CENTRAL_PANE) {

src/types/modules/react-native.d.ts

@@ -12,6 +12,7 @@ import type StartupTimer from '@libs/StartupTimer/types';
 
 type HybridAppModule = {
     closeReactNativeApp: () => void;
+    exitApp: () => void;
 };
 
 type RNTextInputResetModule = {