Swift: prepareForSegue with two different segues

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旧时难觅i
旧时难觅i 2021-01-04 19:29

I have 2 UIButtons on a view. Each of them are linked to 2 different views. They have to pass different data depending which button you just tapped.

I k

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  • 2021-01-04 19:33

    prepareForSegue with two different segues when you click on button uialert controller will show it will give you three options 1. physical, 2. online and 3. cancel.

    @objc func twoSegues(sender : UIButton) {
    let alert = UIAlertController(title: "Update Request", message: "Are you sure to update the record!", preferredStyle: .alert)
            let yes = UIAlertAction(title: "Yes", style: .default, handler: { [weak self] (UIAlertAction) in
    
                if(serviceType == "physical") {
                    DispatchQueue.main.async {
                        self?.performSegue(withIdentifier: "physical", sender: self?.myArray[id!].serviceID)
    
    
                     }
                }
                 if(serviceType == "online") {
                    DispatchQueue.main.async {
                        self?.performSegue(withIdentifier: "online", sender: self?.myArray[id!].serviceID)
                     }
                }
            })
            let no = UIAlertAction(title: "No", style: .default, handler: nil)
            alert.addAction(yes)
            alert.addAction(no)
    
            self.present(alert, animated: true, completion: nil)
        }
    }
    
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  • 2021-01-04 19:36

    Take out your IBActions (making sure to delete them in the Connections Inspector via the right side bar in the Interface Builder as well as in your code). For the segues, just use the Interface Builder, make sure both segue's identifiers are correct, then try this prepareForSegue method:

    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
        if segue.identifier == "matchSegue" {
            let controller = segue.destinationViewController as! ResultViewController
            controller.match = self.match
        } else if segue.identifier == "historySegue" {
            let controller = segue.destinationViewController as! HistoryViewController
            controller.history = self.history
        }
    }
    
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  • 2021-01-04 19:40

    In order to navigate different segues in objective C you need to follow these actions.

    1. Click on the actual segue on storyboard
    2. Go to attribute inspector and rename the identifier of the segue
    3. customize the code as following, here's an example:

      -(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
      if([segue.identifier isEqualToString:@"segueNumberOne"]){
          YourViewController *functionalityViewController = [segue destinationViewController];
          functionalityViewController.someProperty = someValue;
          NSLog(@"move to segue number 1");
      }else if ([segue.identifier isEqualToString:@"segueNumberTwo"]){
          NSLog(@"move to segue number 2");
      }
      
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  • 2021-01-04 19:46

    You could switch it...

    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
        if let identifier = segue.identifier {
            switch identifier {
            case "matchSegue":
                let controller = segue.destinationViewController as! ResultViewController
                controller.match = self.match
            case "historySegue":
                let controller = segue.destinationViewController as! HistoryViewController
                controller.history = self.history
            }
        }
    }
    
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  • 2021-01-04 19:50

    You should compare the segue.identifier with the string not segue:

    segue.identifier == "historySegue"

    It won't fix your problem but it helps later.

    I believe you have added an breakpoint and your app just stop at it. Remove the breakepoint and it will work.

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