I've seen behaviors like this with other apps, i.e. the Google Hangouts app. The keyboard will be active from a chat, and I'll leave the app. Then I'll get a notification that a message came in, go to the app, and there's some period of time before the keyboard becomes responsive.
I think I only see this in iOS 7. On 6.1, it's much faster, but I'd be curious if you see the same difference in your tests. On Jan 29, 2014, at 07:02 , Gerriet M. Denkmann <[email protected]> wrote: > > I have an app with a button. > I start the app, then put the iPhone to sleep. > I wake the phone up and press the button repeatedly, until something happens. > > There is an NSLog() in applicationWillEnterForeground: and in the action > method of the button. > The time difference between these two is 1.1 ... 1.4 seconds. > > Did the same with Time Profiler in Instruments: 1.357 seconds elapsed time, > Running Time 0.044 sec. > That is: my app was doing nothing for about 1.3 seconds. > > This is really annoying: one wakes up the phone, the app looks responsive, so > one taps the button - and nothing happens. > One has to wait a second, tap the button again - and then it works. > > How can I find out what is going on? > How to avoid this? > > Gerriet. > > iOS 7.0.4 > > P.S. Made a new Single View Application (which has nothing except a Done > button in a Toolbar at the bottom) and did run it on iPhone 4s: > > 2014-01-29 21:52:55.540 TestRestart[624:60b] -[T1RAppDelegate > applicationWillEnterForeground:] > 2014-01-29 21:52:55.552 TestRestart[624:60b] -[T1RAppDelegate > applicationDidBecomeActive:] > 2014-01-29 21:52:56.949 TestRestart[624:60b] -[T1RViewController donePressed:] > 2014-01-29 21:52:57.157 TestRestart[624:60b] -[T1RViewController donePressed:] > 2014-01-29 21:52:57.365 TestRestart[624:60b] -[T1RViewController donePressed:] > 2014-01-29 21:52:57.557 TestRestart[624:60b] -[T1RViewController donePressed:] > > Again a delay of 1.397 beween applicationDidBecomeActive and the first > reaction to my button. > > > > > _______________________________________________ > > Cocoa-dev mailing list ([email protected]) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/cocoa-dev/rmann%40latencyzero.com > > This email sent to [email protected] -- Rick
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