🚨 CRITICAL FIX #

• Fixed FATAL crash on background notifications - App was crashing with ClassNotFoundException when receiving push notifications while in background or killed state

Added #

• SmsistMessagingService class implementation for handling Firebase Cloud Messaging events
• Background notification handling (app in background or killed state)
• Automatic notification display with Android notification channels
• Support for both notification and data payloads
• Custom notification icon support with fallback to app icon
• Notification click handling with intent data forwarding
• FCM token refresh handling
• Comprehensive logging for debugging

Fixed #

• Background notifications now work without crashes
• Notification channel creation for Android O+
• Proper PendingIntent flags for Android 12+

Technical Details #

• Created SmsistMessagingService.kt extending FirebaseMessagingService
• Implemented onMessageReceived() for background message handling
• Implemented onNewToken() for FCM token updates
• Added notification channel management
• Fixed AndroidManifest.xml service registration

Fixed #

• Removed unused import (package:flutter/foundation.dart)
• Suppressed linter warnings for debug print statements

Added #

• Initial release of SMS.IST Flutter SDK
• Runtime Firebase configuration (no need for google-services.json or GoogleService-Info.plist)
• Automatic device token registration
• Push notification handling for iOS and Android
• Foreground notification listener (onMessage)
• Background/terminated notification tap listener (onMessageOpenedApp)
• Custom user properties support
• Topic subscription/unsubscription
• Manual permission request
• Manual device registration
• Debug logging support
• Type-safe notification model
• Comprehensive error handling with custom exceptions
• Local notification display for foreground messages
• Deep link support
• Image notification support
• Custom notification channels (Android)
• Badge management (iOS)
• Sound support
• Priority configuration

Security #

• AES-256-GCM encrypted configuration storage on backend
• HTTPS-only communication
• API key authentication
• Device token secure storage
• No sensitive data in app binary

[Unreleased] #

Planned Features #

• Silent notifications
• Scheduled notifications
• Notification categories (iOS)
• Custom notification actions
• In-app messaging
• A/B testing support
• Rich push notifications
• Notification templates
• Multi-language support
• Analytics integration
• Push-to-web support

For more information, visit SMS.IST Documentation