// // Copyright (c) 2015 Google Inc. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. // import UIKit import Firebase @objc(TabBarController) class TabBarController: UITabBarController { override func didMoveToParentViewController(parent: UIViewController?) { if (parent == nil) { let firebaseAuth = FIRAuth.auth() do { try firebaseAuth?.signOut() } catch let signOutError as NSError { print ("Error signing out: %@", signOutError) } } } }