CredentialExampleViewModel.kt

fun signInWithSavedCredential(activity: Activity) {
    viewModelScope.launch {
        try {
            val passwordCredential = getCredential(activity) ?: return@launch

            val signInSuccess = true
            //Run your app's sign in logic using the returned password credential
            // signInSuccess = doSomeSignInWork(username, password)

            //then if successful...
            if (signInSuccess) {
                //Indicate to the UI that we're now signed in.
                signedInPasswordCredential.value = passwordCredential
            }
        }
        catch (e: Exception) {
            Log.e("CredentialTest", "Error getting credential", e)
        }
    }
}