Removed from background restriction, new messages to the app will be delivered as before. Number of messages sent and opened on Apple and Android devices, along withĭata for "impressions" (notifications seen by users) for Android apps.īackground Restricted Apps (Android P or newer)įCM may not deliver messages to apps which were put intoīy the user (such as via: Setting -> Apps and Notification -> -> Battery). System tray, and the data payload is delivered in the extras of the intentįor insight into message delivery to your app, seeįCM reporting dashboard, which records the In these cases, the notification is delivered to the device's Payload (and all messages sent from the Notifications console).
This includes messages that contain both notification and data A user tap on the notification opens the app launcher by When your app is in the background, Android directs notification messages to Handle notification messages in a backgrounded app If you haven't sent a message to the app on thatĭevice within the last 4 weeks, FCM won't call onDeletedMessages(). It should perform a full sync with your app server. When the app instance receives this callback, You may receive a callback to FirebaseMessagingService.onDeletedMessages() Your app on a particular device at the time it connects or if the device hasn't connected toįCM in more than one month. In some situations, FCM may not deliver a message. MyFirebaseMessagingService.kt Override onDeletedMessages
To use FirebaseMessagingService, you need to add the following in your After that, various OS behaviors such as Android O's The time window may be shorter depending on OS delays incurred ahead ofĬalling onMessageReceived. Is provided, your service should handle any message within 20 seconds of receipt (10 seconds onĪndroid Marshmallow). In this case, the notification is delivered to the device’s system tray,Īnd the data payload is delivered in the extras of theįor more information about message types, see Messages with both notification and data payload, when received in the background. In thisĬase, the notification is delivered to the device’s system tray. Notification messages delivered when your app is in the background. OnMessageReceived is provided for most message types, with the following May interfere with your ability to complete your work. After that time, various OS behaviors such as Android O's The time window may be shorter depending on OS delays incurred ahead of calling
It should handle any message within 20 seconds of receipt (10 seconds on Android Your service should override the onMessageReceived and onDeletedMessagesĬallbacks. To receive messages, use a service that extends Notification messages or data messages, you’ll need to write code to handleįor an explanation of the difference between notification and data messages, Firebase notifications behave differently depending on the foreground/background
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