How to get linked account with current user in firebase

Question

I am trying to link my firebase account to my google account and facebook account, and till here everything is working fine.here is my code how I am linking accounts.

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Answer 1

Now I want to get, is my current account is linked to facebook or google?

You can check the provider id to see if the user is signed in with Google or Facebook like this:

FirebaseUser firebaseUser = FirebaseAuth.getInstance().getCurrentUser();
if (firebaseUser != null) {
    for (UserInfo userInfo : firebaseUser.getProviderData()) {
        if (userInfo.getProviderId().equals("google.com")) {
            Log.d(TAG, "User is signed in with Google");
        } else if(userInfo.getProviderId().equals("facebook.com")) {
            Log.d(TAG, "User is signed in with Facebook");
        }
    }
}

You can also use the following code:

List<? extends UserInfo> infos = user.getProviderData();
for (UserInfo ui : infos) {
    if (ui.getProviderId().equals(GoogleAuthProvider.PROVIDER_ID)) {
        Log.d(TAG, ui.getProviderId());
    }
}