XIB file is fitted with whole screen in iOS Swift

Question

I have been trying to show UIViewController on the whole screen while using the present modal?

here is the output image

[![enter image description here][1]][1]

I have xib viewController where I am trying to send value to another viewController using the present method but it does not fit fullscreen.

Here is the code :

let vc = TabBarViewController()
vc.processDefID = keyVal

vc.view.autoresizingMask = [.flexibleWidth, .flexibleHeight]
vc.modalPresentationStyle = .overFullScreen //or .overFullScreen for transparency
self.present(vc, animated: true, completion: nil)

ANother mehtod tried:

 var clientView: UIViewcontroller

 let V = TabBarViewController()
            self.clientView?.view.autoresizingMask = [.flexibleWidth, .flexibleHeight]
            self.clientView?.addChild(V)
            self.clientView?.view.addSubview(V.view)
            V.processDefID = keyVal
        V.view.frame = (self.clientView?.view.bounds)!
            V.view.autoresizingMask = [.flexibleWidth, .flexibleHeight]
            V.modalPresentationStyle = .fullScreen
            self.present(V, animated: true, completion: nil)

Answer 1

Normally you can show/present your view in two way.

Create UIViewController object and present it in the way you are doing

func presentView() {
  let vc = UIStoryboard.init(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "ScannerViewController")        
  vc.view.backgroundColor = .red
  vc.view.autoresizingMask = [.flexibleWidth, .flexibleHeight]
  vc.modalPresentationStyle = .fullScreen
  self.present(vc, animated: true, completion: nil)
}

In the case of using UIViewController with XIB file, it will just change the ViewController initialisation part and nothing else, just like

let vc = ScannerViewController(nibName: "ScannerView", bundle: nil)

Create UIViewController object and insert it in the following way, you can also assign the custom frame to it's UIView object.

func presentView() {
                let vc = UIStoryboard.init(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "ScannerViewController")
                vc.view.frame = CGRect(x: 0, y: 0, width: self.view.frame.width, height: self.view.frame.height/2)
                vc.view.backgroundColor = .red
                self.addChild(vc)
                self.view.addSubview(vc.view)
              }