How to remove border of the navigationBar in swift?

Question

i\'ve been trying to remove the navigationBars border without luck. I\'ve researched and people seem to tell to set shadowImage and BackgroundImage to nil, but this does not

Answer 1

The accepted answer worked for me but I noticed when I wanted the shadow image to reappear when popping back or pushing forward to another vc there was a noticeable blink in the navigation bar.

Using this method navigationController?.navigationBar.setValue(true, forKey: "hidesShadow") in viewWillAppear the shadow bar is hidden in the current visible view controller.

Using these 2 methods

navigationController?.navigationBar.setBackgroundImage(nil, for: .default)
navigationController?.navigationBar.setValue(false, forKey: "hidesShadow")

in viewWillDisappear the blink still happens but only when the shadow image reappears and not the navigation bar itself.

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

    // 1. hide the shadow image in the current view controller you want it hidden in
    navigationController?.navigationBar.setValue(true, forKey: "hidesShadow")
    navigationController?.navigationBar.layoutIfNeeded()
}

override func viewWillDisappear(_ animated: Bool) {
    super.viewWillDisappear(true)

    // 2. show the shadow image when pushing or popping in the next view controller. Only the shadow image will blink
    navigationController?.navigationBar.setBackgroundImage(nil, for: .default)
    navigationController?.navigationBar.setValue(false, forKey: "hidesShadow")
    navigationController?.navigationBar.layoutIfNeeded()
}