Adding health connect warning message.

assets/lang/da.json

@@ -84,9 +84,12 @@
     "expired": "udløbet",
     "completed": "færdig",
     "cancel": "Anuller",
+    "install": "Installér",
     "pages.about.message.read_more": "Tryk for at læse mere",
     "pages.about.study.website": "Hjemmeside",
     "pages.about.study.privacy": "Fortrolighedspolitik",
+    "pages.about.install_health_connect.title": "Health Connect påkrævet",
+    "pages.about.install_health_connect.description": "Denne app kræver, at Google Connect er installeret. Vil du installere det?",
     "dialog.location.permission": "Lokaliseringstjeneste",
     "dialog.location.allow": "Tillad",
     "pages.ic.need_accept": "Du skal acceptere denne informerede samtykke for at kunne deltage i dette studie.",

assets/lang/en.json

@@ -84,9 +84,12 @@
     "expired": "expired",
     "completed": "completed",
     "cancel": "Cancel",
+    "install": "Install",
     "pages.about.message.read_more": "Tap to read more",
     "pages.about.study.website": "Website",
     "pages.about.study.privacy": "Privacy policy",
+    "pages.about.install_health_connect.title": "Health Connect Required",
+    "pages.about.install_health_connect.description": "This app requires Google Health Connect to be installed. Would you like to install it?",
     "dialog.location.permission": "Permission Required",
     "dialog.location.allow": "Allow",
     "pages.ic.need_accept": "You need to accept the informed consent to participate in this study.",

lib/blocs/app_bloc.dart

@@ -55,6 +55,7 @@ class StudyAppBLoC extends ChangeNotifier {
   List<Message> _messages = [];
   final StreamController<int> _messageStreamController =
       StreamController.broadcast();
+  final String _healthConnectPackageName = 'com.google.android.apps.healthdata';
 
   /// The state of this BloC.
   StudyAppState get state => _state;
@@ -84,6 +85,8 @@ class StudyAppBLoC extends ChangeNotifier {
   GlobalKey<ScaffoldMessengerState> get scaffoldKey => _scaffoldKey;
   State? get scaffoldMessengerState => scaffoldKey.currentState;
 
+  String get healthConnectPackageName => _healthConnectPackageName;
+
   /// Create the BLoC for the app.
   StudyAppBLoC() : super() {
     const dep =
@@ -151,6 +154,10 @@ class StudyAppBLoC extends ChangeNotifier {
   /// The overall data model for this app
   CarpStudyAppViewModel get appViewModel => _appViewModel;
 
+  final appCheck = AppCheck();
+
+  List<AppInfo>? installedApps;
+
   /// Initialize this BLOC. Called before being used for anything.
   Future<void> initialize() async {
     if (isInitialized) return;
@@ -178,6 +185,19 @@ class StudyAppBLoC extends ChangeNotifier {
         element == ConnectivityResult.wifi);
   }
 
+  Future<bool> _isHealthConnectInstalled() async {
+    try {
+      final apps = await appCheck.getInstalledApps();
+      if (apps != null) {
+        return apps.any((app) => app.packageName == _healthConnectPackageName);
+      }
+    } catch (e) {
+      debug("Error checking Health Connect installation: $e");
+      return false;
+    }
+    return false;
+  }
+
   /// Set the active study in the app based on an [invitation].
   ///
   /// If a [context] is provided, the translation for this study is re-loaded

lib/main.dart

@@ -27,6 +27,7 @@ import 'package:permission_handler/permission_handler.dart';
 import 'package:connectivity_plus/connectivity_plus.dart';
 import 'package:open_settings_plus/open_settings_plus.dart';
 import 'package:open_settings_plus/core/open_settings_plus.dart';
+import 'package:appcheck/appcheck.dart';
 
 // the CARP packages
 import 'package:carp_serializable/carp_serializable.dart';
@@ -77,6 +78,7 @@ part 'view_models/user_tasks.dart';
 part 'carp_study_app.dart';
 part 'ui/pages/informed_consent_page.dart';
 part 'ui/pages/home_page.dart';
+part 'ui/pages/home_page.install_health_connect_dialog.dart';
 part 'ui/carp_study_style.dart';
 part 'ui/colors.dart';
 part 'ui/pages/data_visualization_page.dart';

lib/ui/pages/home_page.dart

@@ -61,6 +61,22 @@ class HomePageState extends State<HomePage> {
     //  - starting sensing
     askForLocationPermissions(context)
         .then((_) => bloc.configureStudy().then((_) => bloc.start()));
+
+    if (Platform.isAndroid) {
+      // Check if HealthConnect is installed
+      _checkHealthConnectInstallation();
+    }
+  }
+
+  Future<void> _checkHealthConnectInstallation() async {
+    bool isInstalled = await bloc._isHealthConnectInstalled();
+    if (!isInstalled) {
+      showDialog<void>(
+        context: context,
+        barrierDismissible: true,
+        builder: (context) => InstallHealthConnectDialog(context),
+      );
+    }
   }
 
   @override

lib/ui/pages/home_page.install_health_connect_dialog.dart

@@ -0,0 +1,46 @@
+part of carp_study_app;
+
+class InstallHealthConnectDialog extends StatelessWidget {
+  const InstallHealthConnectDialog(BuildContext context, {super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    RPLocalizations locale = RPLocalizations.of(context)!;
+    return AlertDialog(
+      titlePadding: const EdgeInsets.symmetric(vertical: 4),
+      insetPadding: const EdgeInsets.symmetric(vertical: 24, horizontal: 40),
+      title: const DialogTitle(
+        title: "pages.about.install_health_connect.title",
+      ),
+      content: Text(
+        locale.translate('pages.about.install_health_connect.description'),
+        style: aboutCardContentStyle,
+        textAlign: TextAlign.justify,
+      ),
+      actions: [
+        TextButton(
+          onPressed: () => Navigator.of(context).pop(),
+          child: Text(locale.translate('cancel')),
+        ),
+        TextButton(
+          child: Text(locale.translate('install')),
+          onPressed: () async {
+            _redirectToHealthConnectPlayStore();
+            Navigator.of(context).pop();
+          },
+        ),
+      ],
+    );
+  }
+
+  void _redirectToHealthConnectPlayStore() async {
+    final Uri url = Uri.parse(
+        'https://play.google.com/store/apps/details?id=${bloc.healthConnectPackageName}');
+    var canLaunch = await canLaunchUrl(url);
+    if (canLaunch) {
+      await launchUrl(url);
+    } else {
+      throw 'Could not launch $url';
+    }
+  }
+}