CODEWITHSUNDEEP
iosswift4
L Wira Satria M
L Wira Satria M

Reputation: 67

click button on modal ViewController then go to new page swift 4

My case is I wanna show new page from ViewController modal when click button, can we do this like android just onClick on the button and change the page ?

enter image description here

Click from MainViewController > present modally > ProfileViewController Then ProfileViewController > AboutViewController (dismissed)

In My ProfileViewController

@IBAction func testSupport(_ sender: Any) {
    let aboutView = self.storyboard?.instantiateViewController(withIdentifier: "AboutViewController") as! AboutViewController
    self.navigationController?.pushViewController(aboutView, animated: true)
    self.dismiss(animated: false, completion: nil)
}

Upvotes: 0

Views: 2540

Answers (3)

Nguyen Hoan
Nguyen Hoan

Reputation: 1693

Your "self" is presented. It have not navigationcontroller so you can pushviewcontroller. Try: 

@IBAction func testSupport(_ sender: Any) {
    let aboutView = self.storyboard?.instantiateViewController(withIdentifier: "AboutViewController") as! AboutViewController
    self.dismiss(animated: true) {
        if var topController = UIApplication.sharedApplication().keyWindow?.rootViewController {
            topController.navigationController?.pushViewController(aboutView, animated: true)
        }
    }
}

Upvotes: 1

DionizB
DionizB

Reputation: 1507

You can use delegates for this. In your ProfileViewController.swift declare a protocol 

protocol ProfileViewControllerDelegate {
    func didPressSupportButton()
}

Then in your ProfileViewController class declare 

var delegate: ProfileViewControllerDelegate?

In your support action:

@IBAction func testSupport(_ sender: Any) {
    delegate?.didPressSupportButton()
    self.dismiss(animated: false, completion: nil)
}

When you present your view, if you're doing it programmatically, or in prepare for segue:

yourModalViewController.delegate = self

Then in your MainViewController conform to protocol

extension MainViewController: ProfileViewControllerDelegate {
    func didPressSupportButton {
        let aboutView = self.storyboard?.instantiateViewController(withIdentifier: "AboutViewController") as! AboutViewController
        self.navigationController?.pushViewController(aboutView, animated: true)
     }    
}

Upvotes: 1

user7219266
user7219266

Reputation:

You can achieve this :

  • Using Storyboard.

Just Ctrl-drag from your ViewController to the AboutViewController you want. Then a popup will appear where you can choose which segue you want to perform (modal)

Now click on the segue (the link created between the 2 ViewControllers, and give it an identifier).

Add this code in your ViewController (the one you are currently in)

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {

    if segue.identifier == "yourSegueId" {
         let aboutViewController = segue.destination as! AboutViewController
         // do some init if you want
    }
}

Perform the segue within you button action :

@IBAction func didTapButton(_ sender: Any) {

     self.performSegue(withIdentifier: "yourSegueId", sender: self)
}
  • Programmatically.

You can present the ViewController just like your are currently doing, but you are asking for a modal presentation so :

 @IBAction func didTapButton(_ sender: Any) {

     let mainStoryboard = UIStoryboard.init(name: "Main", bundle: nil)
     let aboutViewController = mainStoryboard.instantiateViewController(withIdentifier: "AboutViewController") as! AboutViewController

     self.present(aboutViewController, animated: true, completion: nil) nil)
}

Upvotes: 1

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