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
-(void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
UIImage *emptyImage = [UIImage new];
self.navigationController.navigationBar.shadowImage = emptyImage;
[self.navigationController.navigationBar setBackgroundImage:emptyImage forBarMetrics:UIBarMetricsDefault];
}
其他回答
Slightly Swift Solution
func setGlobalAppearanceCharacteristics () {
let navigationBarAppearace = UINavigationBar.appearance()
navigationBarAppearace.tintColor = UIColor.white
navigationBarAppearace.barTintColor = UIColor.blue
navigationBarAppearace.setBackgroundImage(UIImage(), for: UIBarMetrics.default)
navigationBarAppearace.shadowImage = UIImage()
}
在Swift 3.0中
编辑你的AppDelegate.swift通过添加以下代码到你的应用程序函数:
// Override point for customization after application launch.
// Remove border in navigationBar
UINavigationBar.appearance().shadowImage = UIImage()
UINavigationBar.appearance().setBackgroundImage(UIImage(), for: .default)
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
}
}
在研究了Serhil的答案后,我创建了一个豆荚UINavigationBar+Addition,可以很容易地隐藏发际线。
#import "UINavigationBar+Addition.h"
- (void)viewDidLoad {
[super viewDidLoad];
UINavigationBar *navigationBar = self.navigationController.navigationBar;
[navigationBar hideBottomHairline];
}
试试这个:
[[UINavigationBar appearance] setBackgroundImage: [UIImage new]
forBarMetrics: UIBarMetricsDefault];
[UINavigationBar appearance].shadowImage = [UIImage new];
下图有解释(iOS7导航栏):
检查这个SO问题: iOS7 -改变UINavigationBar的边框颜色