How to handle socket connection's events when app is in background?

Question

I want use the following function even when app is in background?

- (void)stream:(NSStream *)theStream handleEvent:(NSStreamEvent)streamEvent
 {
        case         


        

Answer 1

Use this code to keep your app alive in ios

var backgroundUpdateTask: UIBackgroundTaskIdentifier = UIBackgroundTaskIdentifier(rawValue: 0)

func endBackgroundUpdateTask() {
    UIApplication.shared.endBackgroundTask(self.backgroundUpdateTask)
    self.backgroundUpdateTask = UIBackgroundTaskIdentifier.invalid
}
func applicationWillResignActive(_ application: UIApplication) {
    self.backgroundUpdateTask = UIApplication.shared.beginBackgroundTask(expirationHandler: {
        self.endBackgroundUpdateTask()
    })
}
func applicationDidBecomeActive(_ application: UIApplication) {
    self.endBackgroundUpdateTask()

}

i hope you will get success by this help