如何处理Swift 4中的HTTP加载失败(错误代码:-1009 [1:50])? [英] How do i handle HTTP load failed (error code: -1009 [1:50]) in swift 4?

问题描述

我使用swift 4和Xcode 9在应用程序上创建.当我登录到我的应用程序时，我发送了一个请求并成功登录了来自json的结果.但是，当我切换手机的互联网时，它崩溃了，并给了我这个错误

I created on app using swift 4 and Xcode 9. when I login into my app I send a request and successful login on result which come from json. But when I switch my internet of my phone it crashed and give me this error

HTTP加载失败(错误代码:-1009 [1:50])

那么我该如何处理此错误并向用户显示弹出窗口或任何警告，以检查您的互联网连接，而不会导致应用崩溃.

So how do I handle this error and give popup or any warning to user to check your internet connection without app crashing.

推荐答案

Swift 4，Xcode 10.1 您可以访问错误代码:

Swift 4, Xcode 10.1 You can access to the error code:

class ViewController1: UIViewController, URLSessionDataDelegate {
    ...    
    func urlSession(_ session: URLSession, task: URLSessionTask, didCompleteWithError error: Error?) {
        if error != nil {
            debugPrint("error message: \(error!)")
            debugPrint("code: \(error!._code)")
            if error!._code == -1009 {
                ...
            }
        }
    }
}

另请参见源代码: https://stackoverflow.com/a/53402801/966789

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