💄 Optimized notification toast
This commit is contained in:
457
lib/widgets/app_notification.dart
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457
lib/widgets/app_notification.dart
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@ -0,0 +1,457 @@
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import 'dart:async';
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import 'dart:developer';
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import 'dart:io';
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import 'package:flutter/foundation.dart';
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import 'package:flutter_hooks/flutter_hooks.dart';
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import 'package:collection/collection.dart';
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import 'package:auto_route/auto_route.dart';
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import 'package:flutter/material.dart';
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import 'package:freezed_annotation/freezed_annotation.dart';
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import 'package:hooks_riverpod/hooks_riverpod.dart';
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import 'package:island/models/user.dart';
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import 'package:island/pods/websocket.dart';
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import 'package:material_symbols_icons/material_symbols_icons.dart';
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import 'package:riverpod_annotation/riverpod_annotation.dart';
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import 'package:styled_widget/styled_widget.dart';
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import 'package:url_launcher/url_launcher_string.dart';
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part 'app_notification.freezed.dart';
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part 'app_notification.g.dart';
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class AppNotificationToast extends HookConsumerWidget {
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const AppNotificationToast({super.key});
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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final notifications = ref.watch(appNotificationsProvider);
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final isDesktop =
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!kIsWeb && (Platform.isMacOS || Platform.isWindows || Platform.isLinux);
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// Calculate position based on device type
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final safeAreaTop = MediaQuery.of(context).padding.top;
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final notificationTop = safeAreaTop + (isDesktop ? 30 : 10);
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// Create a global key for AnimatedList
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final listKey = useMemoized(() => GlobalKey<AnimatedListState>());
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// Track previous notifications to detect changes
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final previousNotifications = usePrevious(notifications) ?? [];
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// Handle notification changes
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useEffect(() {
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final currentIds = notifications.map((n) => n.data.id).toSet();
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final previousIds = previousNotifications.map((n) => n.data.id).toSet();
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// Find new notifications (added)
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final newIds = currentIds.difference(previousIds);
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// Insert new notifications with animation
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for (final id in newIds) {
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final index = notifications.indexWhere((n) => n.data.id == id);
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if (index != -1 &&
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listKey.currentState != null &&
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index >= 0 &&
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index <= notifications.length) {
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try {
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listKey.currentState!.insertItem(
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index,
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duration: const Duration(milliseconds: 150),
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);
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} catch (e) {
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// Log error but don't crash the app
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debugPrint('Error inserting notification: $e');
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}
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}
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}
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return null;
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}, [notifications]);
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return Positioned(
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top: notificationTop,
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left: 16,
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right: 16,
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bottom: 16, // Add bottom constraint to make it take full height
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child: Column(
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children: [
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// Test button for development
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if (kDebugMode)
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ElevatedButton(
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onPressed: () {
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ref
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.read(appNotificationsProvider.notifier)
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.addNotification(
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AppNotification(
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data: SnNotification(
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createdAt: DateTime.now(),
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updatedAt: DateTime.now(),
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deletedAt: null,
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id:
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'test-notification-${DateTime.now().millisecondsSinceEpoch}',
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topic: 'test',
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title: 'Test Notification',
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content: 'This is a test notification content',
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priority: 1,
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viewedAt: null,
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accountId: 'test-account-123',
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),
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icon: Symbols.info,
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createdAt: DateTime.now(),
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duration: const Duration(seconds: 5),
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),
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);
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},
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child: Text('test notification'),
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),
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// Use AnimatedList for notifications with Expanded to take full height
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Expanded(
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child: AnimatedList(
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physics: NeverScrollableScrollPhysics(),
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padding: EdgeInsets.zero,
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key: listKey,
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initialItemCount: notifications.length,
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itemBuilder: (context, index, animation) {
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// Safely access notifications with bounds check
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if (index >= notifications.length) {
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return const SizedBox.shrink(); // Return empty widget if out of bounds
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}
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final notification = notifications[index];
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final now = DateTime.now();
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final createdAt = notification.createdAt ?? now;
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final duration =
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notification.duration ?? const Duration(seconds: 5);
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final elapsedTime = now.difference(createdAt);
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final remainingTime = duration - elapsedTime;
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final progress =
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1.0 -
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(remainingTime.inMilliseconds / duration.inMilliseconds)
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.clamp(0.0, 1.0); // Ensure progress is clamped
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return SizeTransition(
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sizeFactor: animation.drive(
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CurveTween(curve: Curves.fastLinearToSlowEaseIn),
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),
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child: _NotificationCard(
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notification: notification,
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progress: progress.clamp(0.0, 1.0),
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onDismiss: () {
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// Find the current index before removal
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final currentIndex = notifications.indexWhere(
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(n) => n.data.id == notification.data.id,
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);
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if (currentIndex != -1 &&
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listKey.currentState != null &&
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currentIndex >= 0 &&
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currentIndex < notifications.length) {
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try {
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// Remove the item with animation
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listKey.currentState!.removeItem(
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currentIndex,
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(context, animation) => SizeTransition(
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sizeFactor: animation.drive(
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CurveTween(
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curve: Curves.fastLinearToSlowEaseIn,
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),
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),
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child: _NotificationCard(
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notification: notification,
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progress: progress.clamp(0.0, 1.0),
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onDismiss:
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() {}, // Empty because it's being removed
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),
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),
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duration: const Duration(
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milliseconds: 150,
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), // Make removal animation faster
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);
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} catch (e) {
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// Log error but don't crash the app
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debugPrint('Error removing notification: $e');
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}
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}
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// Actually remove from state
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ref
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.read(appNotificationsProvider.notifier)
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.removeNotification(notification);
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},
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),
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);
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},
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),
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),
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],
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),
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);
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}
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}
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class _NotificationCard extends HookConsumerWidget {
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final AppNotification notification;
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final double progress;
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final VoidCallback onDismiss;
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const _NotificationCard({
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required this.notification,
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required this.progress,
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required this.onDismiss,
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});
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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// Use state to track the current progress for smooth animation
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final progressState = useState(progress);
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// Use effect to update progress smoothly
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useEffect(() {
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if (progress < 1.0) {
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// Update progress every 16ms (roughly 60fps) for smooth animation
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final timer = Timer.periodic(const Duration(milliseconds: 16), (_) {
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final now = DateTime.now();
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final createdAt = notification.createdAt ?? now;
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final duration = notification.duration ?? const Duration(seconds: 5);
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final elapsedTime = now.difference(createdAt);
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final remainingTime = duration - elapsedTime;
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final newProgress = (1.0 -
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(remainingTime.inMilliseconds / duration.inMilliseconds))
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.clamp(0.0, 1.0);
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progressState.value = newProgress;
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// Auto-dismiss when complete
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if (newProgress >= 1.0) {
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onDismiss();
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}
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});
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return timer.cancel;
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}
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return null;
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}, [notification.createdAt, notification.duration]);
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return Card(
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elevation: 4,
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margin: const EdgeInsets.only(bottom: 8),
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shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
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child: InkWell(
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borderRadius: const BorderRadius.all(Radius.circular(8)),
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onTap: () {
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if (notification.data.meta['action_uri'] != null) {
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var uri = notification.data.meta['action_uri'] as String;
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if (uri.startsWith('/')) {
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// In-app routes
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context.router.pushPath(notification.data.meta['action_uri']);
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} else {
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// External URLs
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launchUrlString(uri);
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}
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}
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},
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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mainAxisSize: MainAxisSize.min,
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children: [
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// Progress indicator
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if (progressState.value > 0 && progressState.value < 1.0)
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AnimatedBuilder(
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animation: progressState,
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builder: (context, _) {
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return LinearProgressIndicator(
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borderRadius: BorderRadius.vertical(
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top: Radius.circular(16),
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),
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value: 1.0 - progressState.value,
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backgroundColor: Colors.transparent,
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color: Theme.of(
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context,
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).colorScheme.primary.withOpacity(0.5),
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minHeight: 3,
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stopIndicatorColor: Colors.transparent,
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stopIndicatorRadius: 0,
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);
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},
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),
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Padding(
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padding: const EdgeInsets.all(12),
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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if (notification.icon != null)
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Icon(
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notification.icon,
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color: Theme.of(context).colorScheme.primary,
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size: 24,
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).padding(right: 12),
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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notification.data.title,
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style: Theme.of(context).textTheme.titleMedium
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?.copyWith(fontWeight: FontWeight.bold),
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),
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if (notification.data.content.isNotEmpty)
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Text(
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notification.data.content,
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style: Theme.of(context).textTheme.bodyMedium,
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).padding(top: 4),
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if (notification.data.subtitle.isNotEmpty)
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Text(
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notification.data.subtitle,
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style: Theme.of(context).textTheme.bodySmall,
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).padding(top: 2),
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],
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),
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),
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IconButton(
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icon: const Icon(Symbols.close, size: 18),
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onPressed: onDismiss,
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padding: EdgeInsets.zero,
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constraints: const BoxConstraints(),
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),
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],
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),
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),
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],
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),
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),
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);
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}
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}
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@freezed
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sealed class AppNotification with _$AppNotification {
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const factory AppNotification({
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required SnNotification data,
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@JsonKey(ignore: true) IconData? icon,
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@JsonKey(ignore: true) Duration? duration,
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@Default(null) DateTime? createdAt,
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@Default(false) @JsonKey(ignore: true) bool isAnimatingOut,
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}) = _AppNotification;
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factory AppNotification.fromJson(Map<String, dynamic> json) =>
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_$AppNotificationFromJson(json);
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}
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// Using riverpod_generator for cleaner provider code
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@riverpod
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class AppNotifications extends _$AppNotifications {
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StreamSubscription? _subscription;
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@override
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List<AppNotification> build() {
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ref.onDispose(() {
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_subscription?.cancel();
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});
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_initWebSocketListener();
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return [];
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}
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void _initWebSocketListener() {
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final service = ref.read(websocketProvider);
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_subscription = service.dataStream.listen((packet) {
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// Handle notification packets
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if (packet.type == 'notifications.new') {
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try {
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final data = SnNotification.fromJson(packet.data!);
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IconData? icon;
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switch (data.topic) {
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case 'general':
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default:
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icon = Symbols.info;
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break;
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}
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addNotification(
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AppNotification(
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data: data,
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icon: icon,
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createdAt: data.createdAt.toLocal(),
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duration: const Duration(seconds: 5),
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),
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);
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} catch (e) {
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log('[Notification] Error processing notification: $e');
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}
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}
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});
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}
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void addNotification(AppNotification notification) {
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// Create a new notification with createdAt if not provided
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final newNotification =
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notification.createdAt == null
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? notification.copyWith(createdAt: DateTime.now())
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: notification;
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// Add to state
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state = [...state, newNotification];
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// Auto-remove notification after duration
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final duration = newNotification.duration ?? const Duration(seconds: 5);
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Future.delayed(duration, () {
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// Find the notification in the current state
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final notificationToRemove = state.firstWhereOrNull(
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(n) => n.data.id == newNotification.data.id,
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);
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// Only proceed if the notification still exists in state
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if (notificationToRemove != null) {
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// Call removeNotification which will handle the animation
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removeNotification(notificationToRemove);
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}
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});
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}
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// Map to track notifications that are being animated out
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final Map<String, bool> _animatingNotifications = {};
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// Map to track which notifications should animate out
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final Map<String, bool> _animatingOutNotifications = {};
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void removeNotification(AppNotification notification) {
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final notificationId = notification.data.id;
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// If this notification is already being removed, don't do anything
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if (_animatingNotifications[notificationId] == true) {
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return;
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}
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// Mark this notification as being removed
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_animatingNotifications[notificationId] = true;
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// Remove from state immediately - AnimatedList handles the animation
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state = state.where((n) => n.data.id != notificationId).toList();
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// Clean up tracking
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_animatingNotifications.remove(notificationId);
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_animatingOutNotifications.remove(notificationId);
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}
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// Helper method to check if a notification should animate out
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bool isAnimatingOut(String notificationId) {
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return _animatingOutNotifications[notificationId] == true;
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}
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// Helper method to manually add a notification for testing
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void showNotification({
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required SnNotification data,
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IconData? icon,
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Duration? duration,
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}) {
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addNotification(
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AppNotification(
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data: data,
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icon: icon,
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duration: duration,
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createdAt: data.createdAt,
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),
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);
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}
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}
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Reference in New Issue
Block a user