Do action upon exit of ios app

Question

How can I assign actions on iOS when a user presses the home button (exit)? I want this for an app where uses user a login feature and I want, upon exit, the user to log out. I dont want to use a button for this.

Answer 1

Use the method,

- (void)applicationDidEnterBackground:(UIApplication *)application

In your application's delegate.

Answer 2

You can't exit an application programmatically, you can use exit(1), however it's not a good practice, chances are there for your apps to get rejected from Apple.

applicationDidEnterBackground will be called for home button press. Try to handle everything here.

Answer 3

Write your actions in appDelegate's "applicationDidEnterBackground" method.