uibackgroundtask

Maintain a Multipeer Connectivity session in Background via BackgroundTask?

由 安稳与你 提交于 2019-12-03 01:35:30
I am trying to maintain a MultipeerConnectivity "session" when the application enters temporarily in the background, so I thought about using a background task as I've seen few times here ... The problem is I have no idea how to "maintain" the session with the UIBackgroundTask, can someone please post a hint I don't care about the advertisers/browsers, it's okay to stop them, but I'd like the session to not disconnect as reconnecting is super buggy for the moment. Einho As per apple documentation "If the app moves into the background, the framework stops advertising and browsing and

startUpdatingLocation of LocationManager through silent push notification

由 巧了我就是萌 提交于 2019-12-03 00:52:06
I am creating app that needs to wake up in background at particular time . I have tried : UILocalNotification : But i Don't want to use UILocalNotification because it needs user interaction to tap on notification and than only app will wake up and start location manager. I have also used [locationManager startUpdatingLocation]; enabled with background Modes Location updates, this is works but it will take lot of battery. So with using new iOS 7 feature Silent pushNotification and didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler: method i need to start location

Delete data when app is killed in the background.

由 陌路散爱 提交于 2019-12-02 15:36:00
问题 I have an app where I am saving data but when the app is killed in the background I have to delete all the saved data. I tried using this method: - (void)applicationWillTerminate:(UIApplication *)application But its not working. Can someone please suggest me how to do that? 回答1: Not sure why you need to wipe the data on terminate specifically, but here is something to consider: Another way to handle this type of situation when apps write data that may be incomplete when they are forced to

iOS 9 : beginBackgroundTaskWithExpirationHandler is getting called before timout

由 大城市里の小女人 提交于 2019-11-30 09:45:50
问题 i'm working on VOIP call and adding support to iOS < 10. For incoming VOIP call when app is in background, i'm using UILocalNotification (deprecated in iOS 10). To make a call 60 secs (or 1 minute) i'm using this code count = 0; apnTimer = [NSTimer scheduledTimerWithTimeInterval:3.0 target:self selector:@selector(showIncomingCall:) userInfo:userInfo repeats:YES]; self.backgroundTask = [application beginBackgroundTaskWithExpirationHandler:^{ NSLog(@"ALVOIP : BACKGROUND_HANDLER_NO_MORE_TASK

iOS 9 : beginBackgroundTaskWithExpirationHandler is getting called before timout

由 烈酒焚心 提交于 2019-11-29 16:24:54
i'm working on VOIP call and adding support to iOS < 10. For incoming VOIP call when app is in background, i'm using UILocalNotification (deprecated in iOS 10). To make a call 60 secs (or 1 minute) i'm using this code count = 0; apnTimer = [NSTimer scheduledTimerWithTimeInterval:3.0 target:self selector:@selector(showIncomingCall:) userInfo:userInfo repeats:YES]; self.backgroundTask = [application beginBackgroundTaskWithExpirationHandler:^{ NSLog(@"ALVOIP : BACKGROUND_HANDLER_NO_MORE_TASK_RUNNING."); [application endBackgroundTask:self.backgroundTask]; self.backgroundTask =
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