When we play our app on the device(ios 4.0 and above) and leave mid workflow, and return later, we return mid workflow. I want that it should not replay from the same left point rather the main screen should load(i.e, the same thing that happens on calling viewDidLoad of our rootViewController).
Please give suggestions if it is possible and if not then please post the reason behind that.
Here's an alternative approach, disable background mode and restart your app every time it enters the foreground: add UIApplicationExitsOnSuspend key to your app's info.plist and set its value to YES.
Yes you call your rootviewcontroller from applicationDidUnhide to do so. You'll have to twist your logic a little (have to reset your variables on this method call).
Edit: You should instead use applicationDidBecomeActive. Reference is on same link.
So actually you want to quit the app on Home button press and restart?i.e turn multitasking off?
Search for info on UIApplicationExitsOnSuspend