Presenting a local notification immediately while running in the background

- (void)applicationDidEnterBackground:(UIApplication *)application {
      NSLog(@"Application entered background state.");
      // bgTask is a property of the class
      NSAssert(self.bgTask == UIInvalidBackgroundTask, nil);
      bgTask = [application beginBackgroundTaskWithExpirationHandler: ^{
          dispatch_async(dispatch_get_main_queue(), ^{
              [application endBackgroundTask:self.bgTask];
              self.bgTask = UIInvalidBackgroundTask;
          });
}];
      dispatch_async(dispatch_get_main_queue(), ^{
          while ([application backgroundTimeRemaining] > 1.0) {
init];
friend];
nil);
NSString *friend = [self checkForIncomingChat];
if (friend) {
    UILocalNotification *localNotif = [[UILocalNotification alloc]
    if (localNotif) {
        localNotif.alertBody = [NSString stringWithFormat:
            NSLocalizedString(@"%@ has a message for you.", nil),
        localNotif.alertAction = NSLocalizedString(@"Read Message",
        localNotif.soundName = @"alarmsound.caf";
        localNotif.applicationIconBadgeNumber = 1;

                      [application presentLocalNotificationNow:localNotif];
                      [localNotif release];
                      friend = nil;
                      break;
} }
          }
          [application endBackgroundTask:self.bgTask];
          self.bgTask = UIInvalidBackgroundTask;
});
}