Ok, I know its possible to keep the app alive by disabling the idle timer. I have an external scanner connected and every time the phone locks is somehow messes with the app and the scanner no longer works. I need to reset the app. If I keep the app alive with disabling the timer it all works fine. As I kind off want to preserve the battery I was wondering is there a way to allow the display to dim while not locking the iPhone so that when I pressed the home button the app would still be running with no need to unlock?
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Is it necessary for the scanner to still works when the apps is not in focus? I would consider shutting down the scanner when the app isn't in focus– MartheenFeb 5, 2014 at 8:28
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Well it need to work after a long period of time of inactivity but still save energy. making the scanner work all the time is a must for fast reuse.– MihaFeb 5, 2014 at 9:11
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So the scanner took a long time to initialize? This is for AIDC right? Perhaps you need to pick a faster scanner since it seems non-jailbroken iPhone can't keep your app running stackoverflow.com/questions/15305314/… Jailbroken iPhone is ok though stackoverflow.com/questions/16779021/… That said, shouldn't there be another scanner with simpler interface? Say sending scanned data as keypress so it won't matter about your app state– MartheenFeb 5, 2014 at 9:16
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Its a linea pro. The problem isn't that the scanner took a long time but needed restarting to be able to work again. Setting the idle timer to off solves the problem but then the problem of the battery arrives...– MihaFeb 5, 2014 at 9:24
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Restarting apps? That shouldn't be needed. Just dispose the scanner when the app is not in focus, and reinitialize it when the apps got focus– MartheenFeb 6, 2014 at 3:40
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