background - the app keep the loading dialog when goes to stop() codename one -

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There is a problem when IM is down. File "Stop" the function in my application (save the current form, When I try to download one and I put the app into background work, then app "forever", trying to get back to the app ... I do not know how to finish the current download in the background Go and show the next form when going back to the app.

"myapplication" file's code: 

  running a personal form; Public Zero Start () {If (current! = Null) {current.show (); Return; } New statistic ("/ theme"); } Public Zero Stop () {current = Display.getInstance () GetCurrent (); }

Just do something like this: 

  (Current examples of communication) {current = null; }

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