Android notifications: onMessageReceived not called
问题 First of all, it's not because the app is in the background. The notifications are sent with a data message payload. In the Play console it says the messages are 'Acknowledged', so they're reaching the device. For most users, the onMessageReceived method is called, but for a minority, it isn't. Why would this be? AndroidManifest: <service android:name=".push.MyFirebaseInstanceIDService"> <intent-filter> <action android:name="com.google.firebase.INSTANCE_ID_EVENT" /> </intent-filter> </service