CODEWITHSUNDEEP
iosxamarin.ios
Matthias
Matthias

Reputation: 361

WillTerminate Event is never called

I have a problem with my iOS Application.

When I kill the app from the iOS Taskbar the WillTerminate Event is not called....any ideas why?

The only background service i have setup is the voip SetKeepAliveTimeout Timer (with the "voip" flag in the info.plist). But even if I take this one out the WillTerminate event is never fired.

I also register for SignificantLocationChanges on DidEnterBackground event.

Any ideas?

Thx

Upvotes: 1

Views: 1734

Answers (1)

marcus
marcus

Reputation: 2541

WillTerminate will not be called on devices and iOS versions supporting multi-tasking (introduced with iOS 4). With iOS 4 the app is only sent to background and if you kill the app from the taskbar, it is actually killed without getting any callback. Still an app can opt-out from the process of being sent to background and then recieve ..terminate events, but also loose its ability to stay loaded in RAM. For opting-out the key UIApplicationExitsOnSuspend has to be set within info.plist.

For a longer explanation check this great article about iOS 4 Backgrounding and Delegate Messaging

Upvotes: 5

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