Question

我在我的代码中使用了Apple的可访问性类。以下是appdelegate的代码

self.resultLabel.text = (json as AnyObject).description

这是checkForReachability

        NSNotificationCenter.defaultCenter().addObserver(self, selector:"checkForReachability:", name: kReachabilityChangedNotification, object: nil);

    self.reachability = Reachability.reachabilityForInternetConnection();
    self.reachability.startNotifier();

但是当没有互联网时（当我关闭wifi时）它不会弹出警报

Answer 1

这可能有助于

我将提供最佳解决方案，希望它有所帮助。

import Foundation
import SystemConfiguration

public class ReachabilityCheck {
    class func isConnectionAvailable()->Bool{

        var Status:Bool = false
        let url = NSURL(string: "http://www.apple.com/")
        let request = NSMutableURLRequest(URL: url!)
        request.cachePolicy = NSURLRequestCachePolicy.ReloadIgnoringLocalAndRemoteCacheData
        request.timeoutInterval = 20.0
        request.HTTPMethod = "HEAD"

        var response: NSURLResponse?

        var data = NSURLConnection.sendSynchronousRequest(request, returningResponse: &response, error: nil) as NSData?

        if let httpResponse = response as? NSHTTPURLResponse {
            if httpResponse.statusCode == 200 {
                Status = true
            }

        }
        else
        {

            let alert = UIAlertView(title: "No Internet Connection", message: "Make sure you are connected to internet.", delegate: nil, cancelButtonTitle: "OK")
            alert.show()
        }

        return Status
    }
}

如何访问或致电其他课程：

 if ReachabilityCheck.isConnectionAvailable() == true {

// write your code here when there is network 

}

Apple Reachability没有显示警报

1 个答案: