Flutter fcm redirect issue - firebase

Question

Hi in one of my flutter project, I am using firebase messaging. First a splash screen and second, the main page of the application. In second page, I implemented the firebase.configure method in the init state as follows. The _navigateToItemDetail method leads to an another page
#override
void initState() {
super.initState();
_firebaseMessaging.configure(
onMessage: (Map<String, dynamic> message) async {
print("onMessage: $message");
setState(() {
_newNotification = true;
});
},
onLaunch: (Map<String, dynamic> message) async {
print("onLaunch: $message");
_navigateToItemDetail(message);
},
onResume: (Map<String, dynamic> message) async {
print("onResume: $message");
_navigateToItemDetail(message);
},
);
and I cam calling the web service for this page after this. But the above method will launch after the webservice calls. So that will cause error in the page redirection. I just put a delay of 4 seconds in web service call, then it will works fine. Is there is any method to solve the issue ? async method available for firebase config ?

Answer 1

I think you need 'onBackgroundMessage'
firebaseMessaging.configure(
//...
onBackgroundMessage: Platform.isIOS ? null : myBackgroundMessageHandler
//...
)
//...
static Future<dynamic> myBackgroundMessageHandler(Map<String, dynamic> message) async {
//Do here something
}
as you can see, it only work on android