Close other multitasking apps with our application with code - iPhone

I wa开发者_Go百科nt to close other application running background with my app

how can i do it?

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not possible

...unless your are programming in a jailbroken iPhone

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You can request the user (who is in control of their device) to kill background apps manually and/or reboot their device. Which is not a good user experience, even though I've seen this request on some game app support forums/FAQs.