Swift checking internet connection with a button - iphone

Question

I know that a lot of people may have asked quite the same question, but what I would like to do is a little different.
I would like to know how can check if the internet is on, while pressing a button.
When the user press the button, if he isn't connect to the internet the next page won't show up. A message would appear demanding him to connect the internet. Than if he is connect to the internet, when he clicks the button the page would change normally.
Anybody knows how I can do this?
Thanks!

Answer 1

Use this class, call isConnectedToNetwork() when the button is pressed (I'm assuming you know how to use #IBAction). If it returns true let the user know in which ever way you want that there is interwebs.
import Foundation
import SystemConfiguration
enum ReachabilityType {
case WWAN,
WiFi,
NotConnected
}
public class Connected {
class func isConnectedToNetwork() -> Bool {
var zeroAddress = sockaddr_in(sin_len: 0, sin_family: 0, sin_port: 0, sin_addr: in_addr(s_addr: 0), sin_zero: (0, 0, 0, 0, 0, 0, 0, 0))
zeroAddress.sin_len = UInt8(sizeofValue(zeroAddress))
zeroAddress.sin_family = sa_family_t(AF_INET)
let defaultRouteReachability = withUnsafePointer(&zeroAddress) {
SCNetworkReachabilityCreateWithAddress(nil, UnsafePointer($0)).takeRetainedValue()
}
var flags: SCNetworkReachabilityFlags = 0
if SCNetworkReachabilityGetFlags(defaultRouteReachability, &flags) == 0 {
return false
}
let isReachable = (flags & UInt32(kSCNetworkFlagsReachable)) != 0
let needsConnection = (flags & UInt32(kSCNetworkFlagsConnectionRequired)) != 0
return (isReachable && !needsConnection) ? true : false
}
}
I got this code from somewhere on the internet I don't think this is the exact project I got it from but It seems this guy possibly made it from the same source. https://github.com/Isuru-Nanayakkara/IJReachability/blob/master/IJReachability/IJReachability/IJReachability.swift
Also there is the apple Reachability obj-c files you can use and just use a header.