Function onMessage

onMessage(
messaging: Messaging,
listener: (message: RemoteMessage) => any,
): () => void
Subscribes to foreground FCM messages.
Parameters
- messaging: Messaging
- listener: (message: RemoteMessage) => any
Returns () => void
Remarks
Event delivery uses the legacy native event proxy shared across RN Firebase modules (not yet migrated to Codegen TurboModule events). Behavior matches pre-v26 releases.
- Defined in index.ts:574