Question

原谅我对swift相当新鲜。我想创建一个习惯于＆＃34; POST＆＃34;请求并从服务器获得响应。然后将从服务器返回的参数传递给func，并允许我的主类相应地响应。以下是我的代表和我的主要课程。它没有打印出LoginViewController类中的响应日志。我有点失落，不知道哪里出了问题。关于如何让这个工作或更好的方式来做这个的建议/指示非常感谢。谢谢！

委派课程

import Alamofire

protocol ServletDelegate {

   func responseSuccess(sender: Servlet, respArray : [String])

   func responseFail(sender: Servlet, respArray : [String])
} 

class Servlet : UIViewController{

    var delegate:ServletDelegate?

    //form 'data' parameter


    Alamofire.request(.POST, Config.flURL, parameters:["data" : ""]).responseData {
      response in
        print ("request \(response.request)")
        print ("response \(response.response)")
        print ("result \(response.result)")
        print ("data \(response.data)")

        let responseData = NSString (data: response.data!, encoding: NSUTF8StringEncoding)
        result = (responseData?.componentsSeparatedByString("~z0@"))!

        print("responseData :\(responseData)");
        print("result :\(result)");

        self.delegate?.responseSuccess(self, respArray: result);

}

主要类

class LoginViewController: Servlet, UITextFieldDelegate, ServletDelegate {

    @IBAction func submitBtnAction(sender: UIButton) {

        Servlet().LoginUserHttp(tfUsername.text!, userPassword: tfPassword.text!);

    }

    func responseSuccess(sender: Servlet, respArray: [String]) {
        print("responseSuccess: \(respArray)");
    }

    func responseFail(sender: Servlet, respArray: [String]) {
        print("responseFail: \(respArray)");
    }

}

Answer 1

首先，你的servlet类不应该是UIViewController，第二个 - 不要使用;很快，它是多余的，第三个你没有设置代表，第四个是代表应该是弱的，这样你就不会遇到强大的参考周期，第五个我没有看到通过发送者的理由

顺便说一句，你可能应该通过响应失败的委托传递一些错误对象，但这取决于你

委派课程

import Alamofire

protocol ServletDelegate: class {

   func responseSuccess(respArray : [String])

   func responseFail(respArray : [String])
} 

class Servlet {

    weak var delegate:ServletDelegate?

    //form 'data' parameter


    Alamofire.request(.POST, Config.flURL, parameters:["data" : ""]).responseData {
      response in
        print ("request \(response.request)")
        print ("response \(response.response)")
        print ("result \(response.result)")
        print ("data \(response.data)")

        let responseData = NSString (data: response.data!, encoding: NSUTF8StringEncoding)
        result = (responseData?.componentsSeparatedByString("~z0@"))!

        print("responseData :\(responseData)")
        print("result :\(result)")

        self.delegate?.responseSuccess(respArray: result)

}

主要类

class LoginViewController: UIViewController, UITextFieldDelegate, ServletDelegate {


let servlet = Servlet()

@IBAction func submitBtnAction(sender: UIButton) {

/// im guessing you know what you are doing here, because we dont see that LoginUserHttp in your Servlet code        
servlet.LoginUserHttp(tfUsername.text!, userPassword: tfPassword.text!)

    }
override func viewDidLoad() {
    servlet.delegate = self
}

func responseSuccess(respArray: [String]) {
        print("responseSuccess: \(respArray)")
    }

    func responseFail(respArray: [String]) {
        print("responseFail: \(respArray)")
    }

}

Swift - 委托协议结构

1 个答案: