2014/10/15 下午 10:04:30

iphone Programming Glossary: backgroundtimeremaining

Getting user location every n minutes after app goes to background

http://stackoverflow.com/questions/10235203/getting-user-location-every-n-minutes-after-app-goes-to-background

given in this post . Unfortunately the steps are not clear to me. I tried implementing those suggestions but the backgroundTimeRemaining continues to decrease even after I start and stop locationServices. This is how I developed it void applicationDidEnterBackground.. checkUpdates void checkUpdates NSTimer timer UIApplication app UIApplication sharedApplication double remaining app.backgroundTimeRemaining if remaining 580.0 self.locationManager startUpdatingLocation self.locationManager stopUpdatingLocation self.locationManager.. stopUpdatingLocation self.locationManager startMonitoringSignificantLocationChanges DbgLog @ Reminaing f app.backgroundTimeRemaining Does anyone have a suggestion on what might be wrong in my code Both initTimer and checkUpdates are being called but only..

Periodic iOS background location updates

http://stackoverflow.com/questions/19042894/periodic-ios-background-location-updates

fromLocation CLLocation oldLocation NSLog @ @ newLocation NSLog @ background time f UIApplication sharedApplication .backgroundTimeRemaining self.locationManager stopUpdatingLocation The current behavior is that the backgroundTimeRemaining decrements from 180 seconds.. sharedApplication .backgroundTimeRemaining self.locationManager stopUpdatingLocation The current behavior is that the backgroundTimeRemaining decrements from 180 seconds to zero while logging location and then the expiration handler executes and no further location.. the accuracy to get a high accuracy coordinate every few minutes and because the locationManager hasn't been stopped backgroundTimeRemaining stays at its maximum value. This reduced battery consumption from ~10 per hour with constant kCLLocationAccuracyBest in..

UILocalNotification does not fire after 10 minutes in background

http://stackoverflow.com/questions/19273039/uilocalnotification-does-not-fire-after-10-minutes-in-background

endBackgroundTask bgTask bgTask UIBackgroundTaskInvalid dispatch_async dispatch_get_main_queue ^ while application backgroundTimeRemaining 1.0 NSString friend self checkForIncomingChat if friend length 0 UIApplication sharedApplication cancelAllLocalNotifications..

Best practice to send a lot of data in background on iOS4 device?

http://stackoverflow.com/questions/3928861/best-practice-to-send-a-lot-of-data-in-background-on-ios4-device

iOS application executing tasks in background

http://stackoverflow.com/questions/5323634/ios-application-executing-tasks-in-background

0 ^ Do the work associated with the task. NSLog @ Started background task timeremaining f app backgroundTimeRemaining if connectedToNetwork do work son... app endBackgroundTask task task UIBackgroundTaskInvalid UPDATE if your app supports..

How do I get a background location update every n minutes in my iOS application?

http://stackoverflow.com/questions/6347503/how-do-i-get-a-background-location-update-every-n-minutes-in-my-ios-application

the background by using UIApplication beginBackgroundTaskWithExpirationHandler In case n is smaller than UIApplication backgroundTimeRemaining it does works just fine in case n is larger the location manager should be enabled and disabled again before there is no..