How to cancel all requests in Alamofire's shared manager

问题

How to cancel all requests in Alamofire's shared manager?

This is my function:

class func cancelAllRequests() {
    Alamofire.Manager.sharedInstance.session.getTasksWithCompletionHandler { (dataTasks, uploadTasks, downloadTasks) in
        self.each(dataTasks, function: self.cancel)
        self.each(uploadTasks, function: self.cancel)
        self.each(downloadTasks, function: self.cancel)
    }
}

class func cancel(index: Int, element: AnyObject) {
    if let task = element as? NSURLSessionTask {
        task.cancel()
    }
}

class func each<T>(array: [T], function: (Int, T) -> ()) {
    for (index, t) in enumerate(array) {
        function(index, array[index])
    }
}

Can it works?

回答1:

Use NSURLSession's invalidateAndCancel method:

manager.session.invalidateAndCancel

回答2:

This is for Swift 4.0 and Alamofire Version 4.5

Alamofire.SessionManager.default.session.getAllTasks{ $0.forEach{ $0.cancel() } }

来源：https://stackoverflow.com/questions/27486326/how-to-cancel-all-requests-in-alamofires-shared-manager