Will iOS call performFetchWithCompletionHandler for the running app that is taken to background (using Home button)?
I thought it is only called when iOS launches my app to do background fetch.
If iOS launches performFetchWithCompletionHandler even if my app is running in background, then I have one more question:
I need to fetch data from remote server periodically. I now use NSTimer and it works even when app is in background. My idea was to use background fetch to do it even if app is not running, but if enable background fetch, I may face situation when my own thread (with NSTimer) does some fetching and iOS calls performFetchWithCompletionHandler.
So, should I stop any timers when my app goes to background and wait for background fetch, then?
