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?

not possible

...unless your are programming in a jailbroken iPhone

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.