Placing UIView To Cover TabBar & NavBar

Question

I am trying to make a popup (UIView) with a transparent background (another UIView). Everything is working fine for the 'popup UIView' but I couldn't figure out how to bring 'transparent background UIView' (above NavigationBar and TabBar).

First I created the UIView in the Storyboard and connected the outlet:

popupView.center = CGPointMake(CGRectGetMidX(self.view.bounds), tableView.center.y);
self.view.addSubview(popupView)
popupView.clipsToBounds = true
popupView.alpha = 0

Then, while displaying popupView I am creating the transparent background UIView:

 func clicked() {
    self.popupView.alpha = 1

    let screenSize: CGRect = UIScreen.mainScreen().bounds
    let opaqueView = UIView()
    opaqueView.frame.size = CGSize(width: screenSize.width, height: screenSize.height)
    opaqueView.backgroundColor = UIColor.blackColor()
    opaqueView.alpha = 0.5

    self.view.addSubview(opaqueView)
 }

However, the background view doesn't get over NavigationBar or TabBar. I tried this but nothing changes:

myTabBar.view.bringSubviewToFront(opaqueView)

What I want to achieve is that, while having popup UIView at the very front, having opaque UIView over everything including NavBar and TabBar, but behind popup UIView

---

Update:

Regarding @Alex's answer, with this chunk, I achieved displaying opaqueView over TabBar & NavBar; but now it's also going above the popupView.

func display() {
   popupView.center = CGPointMake(CGRectGetMidX(self.view.bounds), tableView.center.y);
    self.view.addSubview(popupView)
    popupView.clipsToBounds = true

    let opaqueView = UIView()
    let screenSize: CGRect = UIScreen.mainScreen().bounds
    opaqueView.frame.size = CGSize(width: screenSize.width, height: screenSize.height)
    UIApplication.sharedApplication().keyWindow!.insertSubview(opaqueView, belowSubview: popupView) 
}

How can I place opaqueView below popupView while opaqueView is above everything else?

Answer 1

Try this:

UIApplication.sharedApplication().keyWindow!.bringSubviewToFront(opaqueView)

Updating for Swift 4.2

 UIApplication.shared.keyWindow!.bringSubview(toFront: opaqueView!)

Updating for Swift 5

UIApplication.shared.keyWindow!.bringSubviewToFront(opaqueView!)

Answer 2

(swift 3+) This will make your view on top of tab bar and navigation bar

UIApplication.shared.keyWindow!.addSubview(yourView)
UIApplication.shared.keyWindow!.bringSubview(toFront: yourView)

Answer 3

UIApplication.shared.keyWindow!.bringSubviewToFront(view: view) was depreciated after iOS 13. The best way to have your transparent view cover both the tab controller and nav controller is by doing this.

if let tabBarController = self.tabBarController {
    tabBarController.view.addSubview(view)
}

Answer 4

    func addButtonTapped(){
              if self.transparentBackground == nil{
                  self.transparentBackground = UIView(frame: UIScreen.main.bounds)
                  self.transparentBackground.backgroundColor = UIColor(white: 0.0, alpha: 0.54)
                  UIApplication.shared.keyWindow!.addSubview(self.transparentBackground)
                  self.opaqueView = self.setupOpaqueView()
                  self.transparentBackground.addSubview(opaqueView)
                  UIApplication.shared.keyWindow!.bringSubview(toFront: self.transparentBackground)
                  self.view.bringSubview(toFront: transparentBackground)
              }
          }

          func setupOpaqueView() -> UIView{
                let mainView = UIView(frame: CGRect(x: 16, y: 100, width: Int(UIScreen.main.bounds.width-32), height: 200))
                mainView.backgroundColor = UIColor.white
                let titleLabel = UILabel(frame: CGRect(x: 16, y: 20, width: Int(mainView.frame.width-32), height: 100))
                titleLabel.text = "This is the opaque"
                titleLabel.textAlignment = .center
                titleLabel.font = font
                titleLabel.textColor = UIColor(white: 0.0, alpha: 0.54)
                mainView.addSubview(titleLabel)


                let  OKbutton = UIButton(frame: CGRect(x: 16, y: Int(mainView.frame.height-60), width: Int(mainView.frame.width-32), height: 45))
                OKbutton.backgroundColor = UIColor(red: 40.0 / 255.0, green: 187.0 / 255.0, blue: 187.0 / 255.0, alpha: 1)
                OKbutton.layer.cornerRadius = 10
                mainView.addSubview(OKbutton)
                OKbutton.setTitle("OK", for: .normal)
                OKbutton.setTitleColor(UIColor.white, for: .normal)
                OKbutton.titleLabel?.font = font
                OKbutton.addTarget(self, action:  #selector(FirstViewController.handleOKButtonTapped(_:)), for: .touchUpInside)

                return mainView

          }

          func handleOKButtonTapped(_ sender: UIButton){
              UIView.animate(withDuration: 0.3, animations: {
                  self.transparentBackground.alpha = 0
              }) { done in
                  self.transparentBackground.removeFromSuperview()
                  self.transparentBackground = nil

              }
          }