Running iOS App In The Background

if you want run iOS app functionality in background mean,please copy the below code and paste into appDelegate class.

- (void)applicationDidEnterBackground:(UIApplication *)application

{

    if ([[UIDevice currentDevice] isMultitaskingSupported])

    {

        //Check if device supports mulitasking

        UIBackgroundTaskIdentifier bgTask;

        UIApplication  *app = [UIApplication sharedApplication];

        bgTask = [app beginBackgroundTaskWithExpirationHandler:^{

            [app endBackgroundTask:bgTask];

        }];

    }

}