Killing and restarting an application

Question

Hi everyone,
I have an iPod application that i need to kill from within itself.
I would ideally like to restart the application once it dies, but i am pretty sure that cannot be done, but if someone has the info, please let me know.
thanks
tony

Answer 1

Hi Tony -
I assume you know that, in Apple's view, you're planning just about the worst UI mistake possible. The prime directive is to give the user a sense of control, and to always use standard controls the way the user expects. The only acceptable way for an app to terminate is when the user hits the Home button.
These SO articles pretty much cover the topic:
[Proper way to exit iPhone application?|http://stackoverflow.com/questions/355168/proper-way-to-exit-iphon e-application]
[force application to terminate in iPhone|http://stackoverflow.com/questions/1841824/force-application-to-terminat e-in-iphone]
Of the suggestions included at the above links, I think this might be the cleanest:
- (void)terminateMe {
UIApplication *application = [UIApplication sharedApplication];
MyAppDelegate *app_delegate = [application delegate];
[app_delegate applicationWillTerminate:application];
exit(0);
For iOS 4, set the UIApplicationExitsOnSuspend key in Info.plist (see [Screw Multitasking: How To Make Your iOS 4 Apps Exit For Real|http://maniacdev.com/2010/07/screw-multi-tasking-how-to-make-your-ios-4-ap ps-exit-for-real>.
As to restarting the app, I guess you might consider a companion, helper app. Register the URL's of both apps, then start the helper app with [openURL:|http://developer.apple.com/iphone/library/documentation/UIKit/Referen ce/UIApplicationClass/Reference/Reference.html#//appleref/occ/instm/UIApplication/openURL:]. The helper app would then restart the main app.
Note all of the above is an attempt to answer your explicit question regardless of how ill advised your objective might seem. Whatever it is you're trying to accomplish, I suspect there's a much more reasonable way to do it, and would strongly advise you to look for such an alternative. If you need help with that, a new thread with a more descriptive title might be best
- Ray