This project is a fork from the StretchyLayout repo.
Just clone the app by the following commands. You'll need Xcode 9 as we're going all-in on iOS 11 for this example.
git clone https://github.com/SamiraElhami/FadingNavLayouts.git
cd FadingNavLayouts
When the scrollview reach to the top of textview, the header will be brought to the front and likewise.
func scrollViewDidScroll(_ scrollView: UIScrollView) {
if previousNavBarHidden != shouldHideStatusBar {
UIView.animate(withDuration: 0.05, animations: {
self.setNeedsStatusBarAppearanceUpdate()
//bring navBar to front
self.view.bringSubview(toFront: self.viewNav)
self.view.bringSubview(toFront: self.statusBar!)
})
} else if shouldHideStatusBar == previousNavBarHidden {
//send navBar to back
self.view.sendSubview(toBack: self.viewNav)
self.view.sendSubview(toBack: self.statusBar!)
previousNavBarHidden = shouldHideStatusBar
}
}
private var shouldHideStatusBar: Bool {
let frame = textContainer.convert(textContainer.bounds, to: nil)
if #available(iOS 11.0, *) {
return frame.minY < view.safeAreaInsets.top
} else {
// Fallback on earlier versions
return frame.minY < 0
}
}