ARTICLE AD BOX
Description
I’m building a Flutter productivity app that helps users stay focused by tracking sessions and scheduling task reminders using local notifications.
App Overview
Users can create tasks with a specific reminder time
Each task schedules a local notification
Users can start focus sessions (timer-based)
The app tracks stats like:
total focus time
daily progress
streaks
On app startup, all saved tasks are reloaded and notifications are rescheduled
Problem
Everything works correctly in debug mode, but in the release APK:
❌ Notifications do not trigger
❌ App sometimes closes automatically on startup
❌ Previously scheduled tasks are not firing notifications
What I’m doing
Initialization (main.dart)
void main() async { WidgetsFlutterBinding.ensureInitialized(); try { await NotificationService.init(); final taskService = TaskService(); await taskService.rescheduleAllTasks(); } catch (e) { // prevent crash } if (Platform.isAndroid) { final androidInfo = await DeviceInfoPlugin().androidInfo; if (androidInfo.version.sdkInt >= 33) { await Permission.notification.request(); } } runApp(const FlamziApp()); }Notification Scheduling
await notificationsPlugin.zonedSchedule( id, title, body, scheduledDate, notificationDetails, androidScheduleMode: AndroidScheduleMode.inexactAllowWhileIdle, uiLocalNotificationDateInterpretation: UILocalNotificationDateInterpretation.absoluteTime, );What I’ve already checked
Notifications permission is granted
Using valid future times (not past)
Works perfectly in debug mode
No visible errors in debug logs
Using timezone-based scheduling (zonedSchedule)
Using inexactAllowWhileIdle mode
Expected Behavior
Notifications should trigger at scheduled time
App should not crash on startup
Tasks should reschedule correctly on app launch
Actual Behavior (Release APK)
Notifications never appear
App sometimes closes immediately on launch
Scheduling seems to fail silently
