[iOS] <FIRAnalytics/WARNING> setScreenName:screenClass: must be called after a view controller has appeared

[dieppe]

Each time I try to call setScreenName I get the following warning:

<FIRAnalytics/WARNING> setScreenName:screenClass: must be called after a view controller has appeared

To get the warning you have to first set FirebaseAutomaticScreenReportingEnabled to NO in the Info.plist.

Afaict no screen event is sent when the warning appears.

[damir-sirola]

Did you manage to get around this?

[dieppe]

Nope, we don't really use this feature right now (it's kinda buried in the console...) so I did not have time to dedicate to this.

[annelorraineuy]

I am using this but i dont see the value of the screen name I send, it's always MainActivity on the console.

[Twinski]

Yeah, got the same error :(

Maybe a workaround could be:
firebase.analytics().logEvent('screen_profile');

[jordanmkoncz]

I'm having the same warning appearing as well every time I try to call setScreenName. I'm testing in the iOS simulator, and I'm not seeing any screen name events appearing in the Firebase Console.

My Environment

software	version
react-native-firebase-analytics	3.0.1
react-native	0.41.2

[adgarcia]

so, I think this is happening because the RN view lifecycle doesn't really match up that well w/ the ViewController life cycle. I've had better luck calling setScreenName inside a timeout, but that's also not a great solution. It really needs to be tied to the -viewDidAppear: method

afaik this isn't an issue w/ the library; you can wrap the FIRAnalytics method yourself and, if you call it from componentDidMount or render, you'll see this error message every(?) time

[newuser44]

Anybody get this working for Ionic apps? We can't seem to see any screenNames in firebase for ios. All I can find is old posts from over a year ago with no real solution.
arnesson/cordova-plugin-firebase#828

How have you got this working with a timeout?