initial

lib/todo/scheduled_notification.dart

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+import 'package:flutter_local_notifications/flutter_local_notifications.dart';
+import 'package:timezone/timezone.dart' as tz;
+
+class ScheduledNotificationConnector {
+  static Future<bool?> initialize() async {
+    const initializationSettingsAndroid =
+        AndroidInitializationSettings('@mipmap/ic_launcher');
+    const initializationSettingsDarwin =
+        DarwinInitializationSettings(
+          requestAlertPermission: false,
+          requestBadgePermission: false,
+          requestSoundPermission: false,
+        );
+    const initializationSettings = InitializationSettings(
+        android: initializationSettingsAndroid,
+        iOS: initializationSettingsDarwin,
+        macOS: initializationSettingsDarwin);
+    return FlutterLocalNotificationsPlugin().initialize(initializationSettings);
+  }
+
+  static Future<void> displayNotification(
+      int id, String title, String description) async {
+    final platformChannelSpecifics = NotificationDetails(
+        android: AndroidNotificationDetails(
+            '1', 'Benachrichtigungen', channelDescription: 'Benachrichtigungen'));
+    await FlutterLocalNotificationsPlugin().show(
+      id,
+      title,
+      description,
+      platformChannelSpecifics,
+    );
+  }
+
+  static Future<void> scheduleNotification(
+      int id,
+      DateTime scheduledNotificationDateTime,
+      String title,
+      String description) async {
+    if (scheduledNotificationDateTime.isBefore(DateTime.now())) {
+      return;
+    }
+    final platformChannelSpecifics = NotificationDetails(
+        android: AndroidNotificationDetails(
+            '1', 'Benachrichtigungen', channelDescription: 'Benachrichtigungen'));
+    await FlutterLocalNotificationsPlugin().zonedSchedule(
+        id.hashCode,
+        title,
+        description,
+        tz.TZDateTime.from(scheduledNotificationDateTime, tz.local),
+        platformChannelSpecifics,
+        androidScheduleMode: AndroidScheduleMode.exactAllowWhileIdle,
+        uiLocalNotificationDateInterpretation:
+            UILocalNotificationDateInterpretation.absoluteTime);
+  }
+
+  static Future<void> cancelScheduledNotification(String id) async {
+    await FlutterLocalNotificationsPlugin().cancel(id.hashCode);
+  }
+
+  static Future<void> cancelAllScheduledNotification() async {
+    await FlutterLocalNotificationsPlugin().cancelAll();
+  }
+}