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Editorial Team
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Asked: 2026-06-03T12:01:47+00:00

In my application when user hits home button I save the data in NSUserDefaults

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In my application when user hits home button I save the data in NSUserDefaults. Application is running in background. When user re-launches the app I use the method applicationWillEnterForeground to display the saved data.

However when user double taps on home button and quit the application by selecting minus sign on the app, I need to save different data in that same user defaults. But when I quit the application applicationWillTerminate is called sometimes and sometimes not.

So, how can I differentiate that the application is just minimized or it is quit?

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1 Answer

  1. Editorial Team

    Whenever user taps one time only and application will go in background at that time applicationDidEnterBackground always calls. In this method you can temporarily update/store your NSUserDefaults value.

    If in case, application will again come in foreground with out terminating by using double taps, applicationDidBecomeActive will call, in which you can again update/remove temporarily stored NSUserDefaults value. And if user quits application by double taps, the stored value will be kept with NSUserDefaults.

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