问题
UIApplicationExitsOnSuspend does not force my app to exit. I have cleaned the target, removed the app, rebuilt, and reinstalled many times.
I really need my app to exit.
回答1:
Did you link against SDK 4? This key is only effective in this case.
回答2:
Are you sure your application is still active ?
You will always see your application when double tapping the home button : this is a list of the recently used apps, not a list of currently running apps
Put a breakpoint in the applicationWillTerminate: method of your app delegate, if it stops in this method it means your is killed.
Hope this helps, Vincent
回答3:
Sometimes when people type "set it to true in the plist file" what they really mean is:
- Add "UIApplicationExitsOnSuspend" as a key in the info.plist file
- right-click on UIApplicationExitsOnSuspend and set "type" to boolean
- click the checkbox that then appears
TRUE or YES in a string format does NOT work in the info.plist file.
BOOLEAN is the only flag that enables it.
回答4:
Try this it helps you
in info.plist, add "Application does not run in background" = "YES".
thats it.now you open second time same application.It open with start page.
Thanks
来源：https://stackoverflow.com/questions/3594963/iphone-uiapplicationexitsonsuspend-ineffective