Re: Timeout back to login screen
Re: Timeout back to login screen
- Subject: Re: Timeout back to login screen
- From: Conrad Shultz <email@hidden>
- Date: Thu, 15 Sep 2011 12:56:44 -0700
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On 9/15/11 12:40 PM, Shawn Bakhtiar wrote:
>
> Hi All,
>
> I have multiple users using the same iTouch device during our
> inventory, shipping and receiving process. They log in, take
> inventory, ship stuff, receive stuff, than leave it on the
> counter. They have requested that the unit time out after 5 min
> back to the log in screen. I have done some research on line, and
> have come across a few awkward suggestions on how to do it.
>
> I am looking for someway of detecting when the device goes back to
> the lock screen, and using that as a signal to take my app to the
> login window and clear out the password field.
Take a look at the UIApplicationDelegate protocol.
I haven't played with it, but:
- - applicationProtectedDataWillBecomeUnavailable:
looks like a promising direct notification that the phone is going to
be locked (provided the device is using content protection and a
passcode).
It's a bit of a misappropriation of the notification, but other
options (such as -applicationWillResignActive:) are going to have side
effects because they can be triggered by other events.
- --
Conrad Shultz
Synthetiq Solutions
www.synthetiqsolutions.com
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