How to manually set which storyboard view to show in app delegate

问题

I have an app that wants to log out user whenever application is inactive for a set period of time. It's multiple different views in the app, and i want the app delegate to set loginview as current view whenever this method fires:

- (void)applicationDidBecomeActive:(UIApplication *)application

How to manually set loginViewController as current showing view in the storyboard in this method?

回答1:

UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:@"MainStoryboard"
                                                             bundle: nil];
LoginViewController *loginViewController = [mainStoryboard instantiateViewControllerWithIdentifier:@"LoginViewController"];
[_window setRootViewController:loginViewController];

来源：https://stackoverflow.com/questions/16559871/how-to-manually-set-which-storyboard-view-to-show-in-app-delegate