On Wed, 2014-02-26 at 00:30 -0500, Yaoxuan Jiang wrote: > Hi, > > > My name is Yaoxuan. I’m a 4th year computer science student from > National University of Singapore. I’ m quite interested in the iPhone > App idea and I've around 2-year iOS programming experience. I’ve > interned in two start-ups to develop iOS app and one of them is on App > Store now :) And also one of my iOS project is similar to this idea.
Cool - that sounds like you have a good understanding of the target platform... > I just have one question about the background GPS tracking. Can the > app send the GPS location when there is a significant GPS location > change instead of using time interval? The Android app offers different settings. Either by time slice or by distance > Because now in iOS 7 all apps in background will be suspended in > 3mins, the timer that is used for send GPS location periodically will > also be disabled and the app will stop sending GPS as well after > 3mins. Interesting - I know quite a few IOS apps that don't appear to follow these rules. > Though there is a way to keep the background task alive, the way is > not suggested in App documentation and differs from different iOS > systems. The old way that works on iOS 6 doesn’t work on iOS 7 now :( > The only way to wake up a background app temporally is when there is a > significant GPS location change, and this is done by the iOS system, > so we cannot set a timer to do it. So possibly that will have to be the trigger on IOS then. /D _______________________________________________ subsurface mailing list [email protected] http://lists.hohndel.org/cgi-bin/mailman/listinfo/subsurface
