How to know the list of running applications on the iPhone from your?

Good afternoon. Write the task to develop specific apps for iOS. But I'm not sure that this platform allows to obtain the data I needed. Please tell me how (and whether in principle) to obtain the following data:

1. Listing all installed system applications.
2. The list of running system applications.
3. The currently active application.
July 9th 19 at 13:26
1 answer
July 9th 19 at 13:28
1 does
2 on the way
3 if there is no active your app the active app, or in any way

The option of dzheil breaks and private IPAS do not consider

UPD. if you want you can try to find out whether the user selected application from the set in advance or sewn into your app list through the [UIApplication canOpenURL:"url scheme need app"y

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