private void MBtnSignOut_Click(object sender, EventArgs e) { Toast.MakeText(this, $"Signing out User - {fireBaseManager.mAuth?.CurrentUser}", ToastLength.Short).Show(); fireBaseManager.SignOutUser(); if (fireBaseManager.mAuth?.CurrentUser == null) { Toast.MakeText(this, $"Signing out Successfull.", ToastLength.Short).Show(); Finish(); } }