CredentialExampleViewModel.kt

//Typically you would run this function only after a successful sign-in. No point in saving
//credentials that aren't correct.
private suspend fun saveCredential(activity: Activity, username: String, password: String) {
    try {
        //Ask the user for permission to add the credentials to their store
        credentialManager.createCredential(
            request = CreatePasswordRequest(username, password),
            activity = activity,
        )
        Log.v("CredentialTest", "Credentials successfully added")
    }
    catch (e: CreateCredentialCancellationException) {
        //do nothing, the user chose not to save the credential
        Log.v("CredentialTest", "User cancelled the save")
    }
    catch (e: CreateCredentialException) {
        Log.v("CredentialTest", "Credential save error", e)
    }
}