如何从 objective-c class 推送 swift 视图控制器并将数据传回并继续 objective c class 中的下一个过程

Question

我想从我的 objective C uiviewcontroller 推送 swift UIViewController 并等待 viewcontroller 发送回数据。我该怎么做。

我尝试在 swift 中使用 protocol/Delegate 但它会抛出错误，因为它在 objc .h 文件中不可用，即使我正在导入 "Pass-swift.h" 桥接头文件。

我很好奇我是否可以使用完成块，如果可以，那么怎么做？或任何其他方法？

//Parentviewcontroller.m file


- (void)sendNextbutton:(id)sender{

UIViewController *vc = [[SecurityQuestionViewController alloc] init];

[self.navigationController pushViewController:vc animated:YES];

// I want below signup  function to calll after getting data back from vc viewcontoller
[self singupWithSecurityQuestion];}

// .h 文件

#import  "PassSDK-Swift.h"


@interface ParentViewController : UIViewController <MyProtocol>

@end

//SecurityQuestionViewController.swift

 @objc protocol MyProtocol {
   func setResultofSecurityQuestion(valueSent: [NSDictionary])
 }

@objc public class SecurityQuestionViewController: UIViewController
{    
  var delegate: MyProtocol?

@objc func didTapSubmitButton(sender: UIButton){
    let data: [NSDictionary] = getQuesDictionary()
    print(data)
    delegate?.setResultofSecurityQuestion(valueSent: data)
    navigationController?.popViewController(animated: true)
    dismiss(animated: true, completion: nil)
  }

}

//我应该将数据返回给 ParentViewController，它应该等待 swift 视图控制器发回数据，然后它应该转到下一个 function/method - singupWithSecurityQuestion。

Answer 1

所以答案是使用

       @objc protocol MyProtocol: class {
  func setResultofSecurityQuestion(valueSent: [NSDictionary])
          }

到处都是@objc

如何从 objective-c class 推送 swift 视图控制器并将数据传回并继续 objective c class 中的下一个过程

how to push a swift view controller from objective-c class and pass data back and continue the next process in objective c class

delegates

closures

objective-c

swift

objective-c-swift-bridge