fix(mobile): Fix back button closing the app from multiselection in Android (#1477)

* fixes back button multiselection on android in main timeline

* back button on multiselect in album clears selection

* fixed homepage back and refactor future

* not a futureOr

mobile/lib/modules/album/views/album_viewer_page.dart

@@ -1,3 +1,5 @@
+import 'dart:async';
+
 import 'package:auto_route/auto_route.dart';
 import 'package:easy_localization/easy_localization.dart';
 import 'package:flutter/material.dart';
@@ -248,8 +250,20 @@ class AlbumViewerPage extends HookConsumerWidget {
       );
     }
 
+    Future<bool> onWillPop() async {
+      final isMultiselectEnable = ref.read(assetSelectionProvider).selectedAssetsInAlbumViewer.isNotEmpty;
+      if (isMultiselectEnable) {
+        ref.watch(assetSelectionProvider.notifier).removeAll();
+        return false;
+      }
+
+      return true;
+    }
+
     Widget buildBody(AlbumResponseDto albumInfo) {
-      return GestureDetector(
+      return WillPopScope(
+        onWillPop: onWillPop,
+        child: GestureDetector(
           onTap: () {
             titleFocusNode.unfocus();
           },
@@ -276,6 +290,7 @@ class AlbumViewerPage extends HookConsumerWidget {
               ],
             ),
           ),
+        ),
       );
     }
 

mobile/lib/modules/home/views/home_page.dart

@@ -200,7 +200,18 @@ class HomePage extends HookConsumerWidget {
         );
       }
 
-      return SafeArea(
+      Future<bool> onWillPop() async {
+        if (multiselectEnabled.state) {
+          selectionEnabledHook.value = false;
+          return false;
+        }
+
+        return true;
+      }
+
+      return WillPopScope(
+        onWillPop: onWillPop,
+        child: SafeArea(
           bottom: !multiselectEnabled.state,
           top: true,
           child: Stack(
@@ -229,6 +240,7 @@ class HomePage extends HookConsumerWidget {
                 ),
             ],
           ),
+        ),
       );
     }