Even when using FirebaseOptions to create a [DEFAULT] FirebaseApp, Google Service still tries to use google_app_id.

[harsh0893]

Please someone provide a solution for this.

[samtstern]

@harsh0893 this is currently working as intended, the Analytics SDK does not allow configuration of the App ID at runtime. However I will pass on your feedback, since this could change in the future.

P.S. please use the issue template next time!

[prilaga]

It's so cool to hardcode the keys in xml and provide them to any reverse engineer! Security is the last thing firebase provides

[thatfiredev]

@OlegTarashkevich Note that those keys are not secrets, as explained in this page.

[prilaga]

@thatfiredev It's nice to have unique keys that anyone can extract and reuse as their own. Even SafetyNet won't help.

[thatfiredev]

SafetyNet is being deprecated anyways, so probably not a worthy mention. But maybe PlayIntegrity?

[prilaga]

The Firebase team makes an amazing SDK.
But, unfortunately, "ignoring the problem" is the second name for this sdk team.

The problem can be solved with a resource wrapper in the Application class:
https://gist.github.com/electricbolt/423c03f09bc0303d0d5696b8beb392bd

public class App extends Application {

    private FirebaseResourcesWrapper firebaseResources;

    @Override
    public Resources getResources() {
        if (firebaseResources == null)
            firebaseResources = new FirebaseResourcesWrapper(super.getResources());
        return firebaseResources;
    }

}