連接總是給我假的？

Question

我正在使用Reachability.swift來測試Internet連接（關閉/打開）並且服務器處於（活動/死機）服務器檢查正常，但是Internet Connection總是給我錯誤？

   @IBAction func TestNetwork(_ sender: Any) {
        var internetConnection = "❌"
        var serverStatus  = "❌"
        var message = " \(internetConnection) internet connection \n   \(serverStatus) MHS server\n  "            
        let reachability = Reachability(hostname:"google.com")
        if (reachability?.connection !=  .none ) {
              serverStatus = "✅"
             message = " \(internetConnection) internet connection \n   \(serverStatus) goole server\n  "

        } else {
           serverStatus =  "❌"
            message = " \(internetConnection) internet connection \n   \(serverStatus) google server\n  "
        }
        if (reachability?.connection == .wifi && reachability?.connection == .cellular) {
            internetConnection = "✅"
            message = " \(internetConnection) internet connection \n   \(serverStatus) google server\n  "            
        } else {
            internetConnection = "❌"
            message = " \(internetConnection) internet connection \n   \(serverStatus) google  server\n  "
        }

        let alertController = UIAlertController(title: "Alert", message: message, preferredStyle: .alert)
        let defaultAction = UIAlertAction(
            title: "OK", style: .default, handler: nil)
        alertController.addAction(defaultAction)
        self.present(alertController, animated: true, completion: nil)
    }

Answer 1

連接是一個枚舉，包含3種情況：

enum Connection {
    case none, wifi, cellular
}

由於您的reachability?.connection只能是其中之一，因此您需要將檢查從&&更改為|| 。

更改：

if (reachability?.connection == .wifi && reachability?.connection == .cellular) {
        internetConnection = "✅"
        message = " \(internetConnection) internet connection \n   \(serverStatus) google server\n  "            
    }

至：

if (reachability?.connection == .wifi || reachability?.connection == .cellular) {
        internetConnection = "✅"
        message = " \(internetConnection) internet connection \n   \(serverStatus) google server\n  "            
    }