NavigationBar 相关

• 修改Navigation Bar的按钮/文字颜色

在Storyboard中Navigation View Controller Scene，选中Navigation Bar，修改View下的Tint颜色

• 修改Navigation Bar的背景颜色

修改 Navigation Bar 下的 Bar Tint

• 解决Push时 Navigation Bar 右上角黑影

self.view.backgroundColor = UIColor.white

• 某个界面的 Navigation Bar 透明

override func viewDidAppear(_ animated: Bool) {
    self.navigationController?.navigationBar.setBackgroundImage(UIImage(), for: UIBarMetrics.default)
}
    
override func viewWillDisappear(_ animated: Bool) {
    self.navigationController?.navigationBar.setBackgroundImage(nil, for: UIBarMetrics.default)
}

• 上滑隐藏

extension Controller: UIScrollViewDelegate {

    func scrollViewWillEndDragging(_ scrollView: UIScrollView, withVelocity velocity: CGPoint, targetContentOffset: UnsafeMutablePointer) {
        if velocity.y > 0 {
            self.navigationController?.setNavigationBarHidden(true, animated: true)
        } else {
            self.navigationController?.setNavigationBarHidden(false, animated: true)
        }
    }

}