Exit iPhone app, from tab bar controller? [duplicate] - ios

Question

This question already has answers here:
Proper way to exit iPhone application?
(24 answers)
Closed 9 years ago.
I have a tab based app, which last tab button is "Exit" how can I quite iPhone App, on click of that last tab bar?

Answer 1

I can't express how strongly I wouldn't recommend this - just DON'T
This will get your app rejected from the App Store in the Apple App Store Review Process.
If you insist on it though you could use exit(0);
If the user wishes to exit your app they have the Home button at the bottom of the device so there is no need to do this at all, it will create confusion and and look as if the app has crashed.
See this, it states.
There is no API provided for gracefully terminating an iOS application.
Warning: Do not call the exit function. Applications calling exit will appear to the user to have crashed, rather than performing a graceful termination and animating back to the Home screen.
So this means there is no Public API that will allow you to do this gracefully so your app would get rejected under
2.5 - Apps that use non-public APIs will be rejected
From source Apple Review Guidelines
Basic definition of exit()
exit. The exit statement terminates your program with an exit code. Its prototype is void exit(int exitcode);
exit is used by some operating systems and may be used by calling programs. By convention, an exit code of 0 means that the program finised normally, and any other value means that some error or unexpected results happened.
Also another source that says don't use it is here. That is basically all of the Apple Documentation saying under no circumstance should you be exiting the app programmatically.

Answer 2

We can not send app in background or we can not quit app because Quitting your application or sending it to the background programmatically is a violation of the iOS Human Interface Guidelines, because people tend to interpret this as a crash and apple never allows such apps.

Answer 3

You can exit an iOS Application with the following code
exit(0)
However,
From Apple's Human User Guidelines...
Don’t Quit Programmatically
Never quit an iOS application programmatically because people tend to
interpret this as a crash. However, if external circumstances prevent
your application from functioning as intended, you need to tell your
users about the situation and explain what they can do about it.
Depending on how severe the application malfunction is, you have two
choices.
Display an attractive screen that describes the problem and suggests a
correction. A screen provides feedback that reassures users that
there’s nothing wrong with your application. It puts users in control,
letting them decide whether they want to take corrective action and
continue using your application or press the Home button and open a
different application
If only some of your application's features are not working, display
either a screen or an alert when people activate the feature. Display
the alert only when people try to access the feature that isn’t
functioning.

Answer 4

!!! PLEASE DONT DO IT !!!
an iphone app should not be terminated by user! Your app will be rejected!
check UITabBarDelegate
- (void)tabBar:(UITabBar *)tabBar didSelectItem:(UITabBarItem *)item {
if( item == exitItem ) {
exit(0);
}
}