CODEWITHSUNDEEP
iosswiftuinavigationcontrollersegue
Alex Smith
Alex Smith

Reputation: 385

Navigation Controller Clear in Unwind Segue

I have a segue connecting two views. In the parent view, the navigation bar is a gray color, and in the child view, it's clear. When unwinding the segue, the navigation bar in the parent controller is now clear as well. How to fix this?

Parent Controller

  override func viewWillAppear(animated: Bool) {
    self.navigationItem.title = "FEED"
    self.navigationController?.navigationBar.barTintColor = UIColor(white:0.97, alpha:1.0)
    let navBarLineView = UIView(frame: CGRectMake(0,
        CGRectGetHeight((navigationController?.navigationBar.frame)!),
        CGRectGetWidth((self.navigationController?.navigationBar.frame)!),
        1))
    navBarLineView.backgroundColor = UIColor(red:0.91, green:0.91, blue:0.92, alpha:1.0)
    navigationController?.navigationBar.addSubview(navBarLineView)
}

Child Controller

 override func viewWillAppear(animated: Bool) {
    self.navigationItem.title = "Space
    self.navigationController?.navigationBar.barTintColor = UIColor.whiteColor()

    navigationController!.navigationBar.setBackgroundImage(UIImage(), forBarMetrics: UIBarMetrics.Default)
    navigationController!.navigationBar.shadowImage = UIImage()
    navigationController!.navigationBar.translucent = true
}

Upvotes: 1

Views: 183

Answers (1)

Just Shadow
Just Shadow

Reputation: 11881

Setting background and shadow images to nil in viewWillDisappear method in the child controller worked fine for me when I wanted to restore default style of navigation bar: 

override func viewWillDisappear(animated: Bool) {
    navigationController!.navigationBar.setBackgroundImage(nil, forBarMetrics: UIBarMetrics.Default)
    navigationController!.navigationBar.shadowImage = nil
}

Upvotes: 0

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