Notification handling in foreground in Firebase - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does 'notification handling in foreground' mean in Firebase?

It means managing how notifications are received and shown when the app is open and active on the screen.

beginner

Which Firebase service is used to send notifications to apps?

Firebase Cloud Messaging (FCM) is used to send notifications to apps on different devices.

intermediate

Why do notifications need special handling when the app is in the foreground?

Because the app is already open, notifications won’t show automatically in the system tray, so the app must decide how to display or handle them.

intermediate

How can you show a notification in the app when it is in the foreground using Firebase?

You listen for messages using Firebase messaging listeners and then create a local notification or update the UI to alert the user.

beginner

What is a common method to listen for foreground messages in Firebase Cloud Messaging?

Using the onMessage() method from Firebase messaging SDK to catch messages while the app is active.

What happens to notifications sent via Firebase when the app is in the foreground by default?

A They automatically show in the system notification tray.

B They are ignored and not received by the app.

C They are received but not shown automatically; the app must handle them.

D They cause the app to close.

When the app is open (foreground), notifications are received but not shown automatically. The app must decide how to display or handle them.

Which Firebase method is used to listen for messages when the app is active?

A onBackgroundMessage()

B onMessage()

C sendNotification()

D receiveMessage()

The onMessage() method listens for messages when the app is in the foreground.

Why might you want to show a custom alert inside the app for foreground notifications?

A To provide a better user experience by showing relevant info immediately.

B To save battery life.

C Because system notifications are blocked in the foreground.

D To prevent the app from crashing.

Showing a custom alert helps users see important info right away without waiting for system notifications.

What is Firebase Cloud Messaging mainly used for?

A Sending notifications and messages to apps.

B Building user interfaces.

C Managing app databases.

D Storing user data.

Firebase Cloud Messaging is designed to send notifications and messages to apps on devices.

If you want to handle notifications differently when the app is open, what should you do?

A Send notifications only when the app is closed.

B Ignore all notifications.

C Disable Firebase messaging.

D Use onMessage() to catch notifications and show custom UI.

Using onMessage() lets you catch notifications in the foreground and show custom alerts or UI.

Explain how Firebase handles notifications when the app is in the foreground and what you need to do to show them to users.

Think about what happens when the app is open and how you can still alert the user.

Describe the role of Firebase Cloud Messaging in notification handling and why foreground handling is important.

Consider how messages reach the app and what changes when the app is active.