Question

I have a problem with device locking. If my app is running and device gets locked then my app is also not working. I want my app to work even if my device is locked.
My code is as follows:

- (void)applicationDidEnterBackground:(UIApplication *)application
{
 [[UIApplication sharedApplication] setIdleTimerDisabled:NO];

 background = YES;

 UIApplication  *app = [UIApplication sharedApplication];

 bgTask  = [app beginBackgroundTaskWithExpirationHandler:^{
  [app endBackgroundTask:bgTask];
  bgTask = UIBackgroundTaskInvalid;
 }];

 dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
  if (background) {
   StressFreeAlarmViewController *alarmController=[[StressFreeAlarmViewController alloc] initWithNibName:@"StressFreeAlarmViewController" bundle:nil];

   [alarmController setTimer:[NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(updatingApp) userInfo:nil repeats:YES]];

   background=NO;
  }
 });

}


- (void)applicationDidBecomeActive:(UIApplication *)application
{
 // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
 background = NO;
}

Answer 1

comment this line

 [app endBackgroundTask:bgTask];
 bgTask = UIBackgroundTaskInvalid;


here


 UIApplication  *app = [UIApplication sharedApplication];

 bgTask  = [app beginBackgroundTaskWithExpirationHandler:^{
  //[app endBackgroundTask:bgTask];
  //bgTask = UIBackgroundTaskInvalid;
 }];