我有一个应用程序,有时需要它的导航栏融入内容。
有人知道怎么去掉或者改变这个烦人的小条的颜色吗?
在下图中,我说的是根视图控制器下面1px的高度线
我有一个应用程序,有时需要它的导航栏融入内容。
有人知道怎么去掉或者改变这个烦人的小条的颜色吗?
在下图中,我说的是根视图控制器下面1px的高度线
当前回答
if #available(iOS 13.0, *) {
let appearance = UINavigationBarAppearance()
appearance.backgroundColor = Colors.color_app
appearance.titleTextAttributes = [.foregroundColor : UIColor.white]
appearance.largeTitleTextAttributes = [.foregroundColor : UIColor.white]
appearance.shadowColor = .clear
appearance.shadowImage = UIImage()
UINavigationBar.appearance().tintColor = .white
UINavigationBar.appearance().standardAppearance = appearance
UINavigationBar.appearance().compactAppearance = appearance
UINavigationBar.appearance().scrollEdgeAppearance = appearance
} else {
UINavigationBar.appearance().barTintColor = Colors.color_app
UINavigationBar.appearance().tintColor = .white
UINavigationBar.appearance().titleTextAttributes = [NSAttributedString.Key.foregroundColor : UIColor.white]
if #available(iOS 11.0, *) {
UINavigationBar.appearance().largeTitleTextAttributes = [NSAttributedString.Key.foregroundColor: UIColor.white]
}
UINavigationBar.appearance().isTranslucent = false
UINavigationBar.appearance().shadowImage = UIImage()
UINavigationBar.appearance().setBackgroundImage(UIImage(), for: .default)
}
其他回答
pxpgraphics的解决方案为Swift 2.0更新
extension UINavigationBar {
func hideBottomHairline()
{
hairlineImageViewInNavigationBar(self)?.hidden = true
}
func showBottomHairline()
{
hairlineImageViewInNavigationBar(self)?.hidden = false
}
private func hairlineImageViewInNavigationBar(view: UIView) -> UIImageView?
{
if let imageView = view as? UIImageView where imageView.bounds.height <= 1
{
return imageView
}
for subview: UIView in view.subviews
{
if let imageView = hairlineImageViewInNavigationBar(subview)
{
return imageView
}
}
return nil
}
}
extension UIToolbar
{
func hideHairline()
{
let navigationBarImageView = hairlineImageViewInToolbar(self)?.hidden = true
}
func showHairline()
{
let navigationBarImageView = hairlineImageViewInToolbar(self)?.hidden = false
}
private func hairlineImageViewInToolbar(view: UIView) -> UIImageView?
{
if let imageView = view as? UIImageView where imageView.bounds.height <= 1
{
return imageView
}
for subview: UIView in view.subviews
{
if let imageView = hairlineImageViewInToolbar(subview)
{
return imageView
}
}
return nil
}
}
斯威夫特说
UINavigationBar.appearance().setBackgroundImage(UIImage(), forBarPosition: .Any, barMetrics: .Default)
UINavigationBar.appearance().shadowImage = UIImage()
in
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool
从iOS 13开始,就有一个系统API来设置或删除阴影
UIKit使用shadowImage和shadowColor属性来确定阴影的 外观。当shadowImage为nil时,该工具条显示默认的着色阴影 根据shadowColor属性中的值。如果shadowColor为nil或 包含clearColor颜色,条显示没有阴影。
let appearance = UINavigationBarAppearance()
appearance.shadowImage = nil
appearance.shadowColor = nil
navigationController.navigationBar.standardAppearance = appearance
https://developer.apple.com/documentation/uikit/uibarappearance/3198009-shadowimage
在AppDelegate中,这已经全局地改变了导航栏的格式:
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
UINavigationBar.appearance().setBackgroundImage(UIImage(), forBarPosition: UIBarPosition.Any, barMetrics: UIBarMetrics.Default)
UINavigationBar.appearance().shadowImage = UIImage()
UINavigationBar.appearance().tintColor = UIColor.whiteColor()
UINavigationBar.appearance().barTintColor = UIColor.redColor()
UINavigationBar.appearance().translucent = false
UINavigationBar.appearance().clipsToBounds = false
UINavigationBar.appearance().backgroundColor = UIColor.redColor()
UINavigationBar.appearance().titleTextAttributes = [NSFontAttributeName : (UIFont(name: "FONT NAME", size: 18))!, NSForegroundColorAttributeName: UIColor.whiteColor()] }
还没有在特定的VC上实现任何不同的东西,但这将帮助90%的人
我知道这是一个老话题,但我找到了一个非常有效的解决方案:
子类UINavigationBar。 在你的UINavigationBar子类中,用下面的代码重写didAddSubview:
- (void)didAddSubview:(UIView *)subview
{
[super didAddSubview:subview];
if ([subview isKindOfClass:[UIImageView class]]) {
[subview setClipsToBounds:YES];
}
}