Files
ReVoltVPN/lib/components/notification.dart
T
Naveax 0ab008b80b fix(app): hide session metadata from public lock screen
Keep the ongoing VPN notification visible while marking its timer and speed content private so Android does not expose session metadata in public lock-screen previews.
2026-08-31 20:24:04 +03:00

96 lines
2.9 KiB
Dart

import 'dart:io';
import 'dart:ui' as ui;
import 'package:flutter_local_notifications/flutter_local_notifications.dart';
class VpnNotificationManager {
static final FlutterLocalNotificationsPlugin _plugin =
FlutterLocalNotificationsPlugin();
static bool _initialized = false;
static String? _lastTimeLeft;
static String? _lastSpeedKbps;
// Android channels are immutable — bump this if settings change.
static const _channelId = 'revolt_vpn_v4';
static const _channelName = 'Revolt VPN';
static const _notifId = 888;
static Future<void> init() async {
if (_initialized) return;
const androidSettings =
AndroidInitializationSettings('@drawable/notification_icon');
const initSettings = InitializationSettings(android: androidSettings);
await _plugin.initialize(initSettings);
if (Platform.isAndroid) {
final androidPlugin = _plugin
.resolvePlatformSpecificImplementation<
AndroidFlutterLocalNotificationsPlugin>();
await androidPlugin?.requestNotificationsPermission();
}
_initialized = true;
}
static Future<void> showOrUpdateStatus({
required String timeLeft,
required String speedKbps,
}) async {
if (timeLeft == _lastTimeLeft && speedKbps == _lastSpeedKbps) return;
_lastTimeLeft = timeLeft;
_lastSpeedKbps = speedKbps;
if (!_initialized) await init();
final bodyText = 'Time: $timeLeft • $speedKbps';
final bigPictureStyle = BigPictureStyleInformation(
const DrawableResourceAndroidBitmap('notification_banner'),
largeIcon: const DrawableResourceAndroidBitmap('notification_icon'),
contentTitle: 'Revolt VPN',
summaryText: bodyText,
htmlFormatContentTitle: false,
htmlFormatSummaryText: false,
);
final androidDetails = AndroidNotificationDetails(
_channelId,
_channelName,
channelDescription: 'Session timer and speed',
importance: Importance.low,
priority: Priority.low,
ongoing: true,
autoCancel: false,
playSound: false,
enableVibration: false,
showWhen: false,
// Session time/speed is usage metadata. Keep it out of public lock-screen
// previews while leaving the ongoing VPN status notification intact.
visibility: NotificationVisibility.private,
usesChronometer: false,
category: AndroidNotificationCategory.service,
colorized: true,
color: const ui.Color(0xFF0D1117),
styleInformation: bigPictureStyle,
);
final details = NotificationDetails(android: androidDetails);
try {
await _plugin.show(_notifId, _channelName, bodyText, details);
} catch (e) {
_initialized = false;
try {
await init();
await _plugin.show(_notifId, _channelName, bodyText, details);
} catch (_) {}
}
}
static Future<void> cancel() async {
if (!_initialized) return;
await _plugin.cancel(_notifId);
}
}