Transparent Nav Bar

transparentNavBar.swift

    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)

        let navigationBar = self.navigationController?.navigationBar
        navigationBar?.tintColor = UIColor.ColorTheme.defaultTheme.backgroundColor
        navigationBar?.setBackgroundImage(UIImage(), for: .default)
        navigationBar?.shadowImage = UIImage()
        navigationBar?.isTranslucent = true
        navigationBar?.backgroundColor = .clear
    }
    
    override func viewWillDisappear(_ animated: Bool) {
        super.viewWillDisappear(animated)
        
        let navigationBar = self.navigationController?.navigationBar
        navigationBar?.tintColor = UIColor.ColorTheme.defaultTheme.primaryTextColor
        navigationBar?.shadowImage = nil
        navigationBar?.setBackgroundImage(nil, for: .default)
        navigationBar?.isTranslucent = false
        navigationBar?.backgroundColor = UIColor.ColorTheme.defaultTheme.backgroundColor// .clear
    }