How can I remove border bottom of UINavigationBar? - ios

I want to remove the bottom border from UINavigationBar, but I don't know how to remove it.


Actually, that is the shadow of the navigation bar.
To get rid of it, just set it to an empty image:
navigationController.navigationBar.shadowImage = UIImage()
Note: You must set it to an empty UIImage(); nil won't work for some reason.


You need to set a custom shadow image to show instead of the default one. Note: a custom background image must also be set.
navController.navigationBar.barTintColor = .blue //set your color
navController.navigationBar.isTranslucent = false
navController.navigationBar.setBackgroundImage(UIImage(), for: .default)
navController.navigationBar.shadowImage = UIImage()


you can do this
self.navigationController.navigationBar.layer.borderWidth = 0.0;
OR
you can give border color same as navigation bar background color
self.navigationController.navigationBar.layer.borderColor = [UIColor colorWithRed:<#(CGFloat)#> green:<#(CGFloat)#> blue:<#(CGFloat)#> alpha:<#(CGFloat)#>];


For iOS 11 you can use the (deprecated) Black Translucent Navigation bar style with a custom bar tint.

Related

Tint Color works with native colors but not with the color from pattern image

I am theaming the navigation bar back button with the navigation bar tint color it works when I use native colors and it fails when I use custom color from an image.
working code :
self.navigationController?.navigationBar.tintColor = UIColor.orange
Not working code:
let color = UIColor.init(patternImage: someImage)
self.navigationController?.navigationBar.tintColor = color
Can someone show some light?

You cannot use pattern color for tint color.
Refer the following link:
https://developer.apple.com/documentation/uikit/uiview/1622467-tintcolor
look for this note:
Important
If you attempt to use a pattern color as a tint color, the system
raises an exception.

If you have a image then please set image in navigationbar as a background image. Like :
self.navigationController?.navigationBar.setBackgroundImage(#imageLiteral(resourceName: "NavigationBackground"), for: .default)
Hope this is helpful.

Change statusBar background color while using large title for navigation bar on iOS 11

I'm trying to use the new navigationBar's large title feature on iOS 11.
However, after I added the following line:
self.navigationController?.navigationBar.prefersLargeTitles = true
I found that the navigationBar background color changed to black.
So I set background color again manually:
self.navigationController?.setBackgroundColor(UIColor(hexString: 0xFF7E79))
However, I found that the statusBar background color didn't change:
After I set up the background color of statusBar through this code:
guard let statusBar = UIApplication.shared.value(forKeyPath: "statusBarWindow.statusBar") as? UIView else { return
statusBar.backgroundColor = UIColor(hexString: 0xFF7E79)
It gives me an ugly 1px black line like this between the statusBar and the navigationBar:
So what is the correct way to set the background color of navigationBar?

The correct way to set the background color of the UINavigationBar is to use the barTintColor property.
self.navigationController?.navigationBar.barTintColor = .red
You may notice that the color you set can be a little faded. As noted in the documentation:
This color is made translucent by default unless you set the isTranslucent property to false.
See the barTintColor reference on developer.apple.com

Setting iOS Navigation background color not working correctly

I have a very specific issue. When I set the background barTintColor to my blue, it's too light. Nothing I do seems to make it 100% accurate.
So I changed the code to set the nav bar background to 100% black. Using the OS X app SIP to analyze the color, or just setting the view to black as well, it's pretty obvious the color is very dark gray, but not black.
What is making the tint color screw up? As it stands, the blue I need and what the nav bar is showing are not the same.
navigationController?.navigationBar.setBackgroundImage(UIImage.imageFromColor(UIColor.black), for: .default)
navigationController?.navigationBar.shadowImage = UIImage()
navigationController?.navigationBar.barStyle = .blackOpaque
navigationController?.navigationBar.isOpaque = true
navigationController?.navigationBar.barTintColor = UIColor.black
Also in a blank project, fresh, same issue.

The key is to set isTranslucent to false.
let navigationBar = navigationController?.navigationBar
navigationBar?.barTintColor = .black
navigationBar?.isTranslucent = false

How to make UINavigationBar background transparent?

First of all,
I've seen all the answers at How to make UINavigationBar Transparent in IOS 8? Transparent UINavigationBar and Make UINavigationBar transparent.
They just don't seem to work for me.
My regular view controller (before trying to make the navigation bar transparent) doesn't have any issues:
I'm using (tried both in viewDidLoad and viewWillAppear:):
[self.navigationController.navigationBar setBackgroundImage:[UIImage new]
forBarMetrics:UIBarMetricsDefault];
self.navigationController.navigationBar.shadowImage = [UIImage new];
self.navigationController.navigationBar.translucent = YES;
self.navigationController.view.backgroundColor = [UIColor clearColor];
I'm getting this:
Gray status bar background, completely white navigation bar which doesn't blend with the status bar, and then the view starts. All the 'solutions' at the other questions' answers' yield the same result for me.
I've also tried setting self.edgesForExtendedLayout = UIRectEdgeNone; or self.edgesForExtendedLayout = UIRectEdgeAll; but that also didn't have any impact.
How can I make my navigation bar transparent without messing up everything?
UPDATE: Following Warif Akhand Rishi's answer, I've changed self.navigationController.view.backgroundColor = [UIColor clearColor]; to self.navigationController.navigationBar.backgroundColor = [UIColor clearColor];, now I'm getting a gray, unified status/navbar, but still not transparent:
UPDATE 2: I've hooked up the view debugger, and that gray background seems to come from deep down from the roots of view hierarchy, and my view's content is not extending up. I've tried self.edgesForExtendedLayout = UIRectEdgeAll; again with the latest code but still no avail:

swift 4 transparent nav bar:
(be sure view extends behind nav bar to show through, otherwise will just be black)
navigationController?.navigationBar.isTranslucent = true
navigationController?.navigationBar.setBackgroundImage(UIImage(), for: .default)
navigationController?.navigationBar.shadowImage = UIImage() //remove pesky 1 pixel line
or just match navbar color to color of your current vc, but keep it opaque. with translucent set to false child views will line up with navbar instead of going under it.
navigationController?.navigationBar.isTranslucent = false
navigationController?.navigationBar.barTintColor = UIColor.yourColor
navigationController?.navigationBar.shadowImage = UIImage() //remove pesky 1 pixel line

Change your
self.navigationController.view.backgroundColor = [UIColor clearColor];
to this
self.navigationController.navigationBar.backgroundColor = [UIColor clearColor];

Okay, after struggling, I've solved the problem on my own. There was more than one problem. It wasn't about the extended edges, it was about the line self.navigationController.view.backgroundColor = [UIColor clearColor]; (which had to be self.navigationController.navigationBar.backgroundColor = [UIColor clearColor]; as Warif Akhand Rishi suggested) and also my table view's clip subviews property. I've changed that line and also turned off clipping of my table view and now it works as expected.

For iOS 13 and the UINavigationBarAppearance API:
let navAppearance = UINavigationBarAppearance()
navAppearance.configureWithTransparentBackground()
self.navigationItem.standardAppearance = navAppearance
Eliminate 5+ lines of shadow/background/color code!

I'm a little late to the party, but I recently needed to do the same thing and I found the following actually works best (because it removes all shadows and bleed-throughs you may have from something lower in the stack):
guard let navBar = navigationController?.navigationBar else { return }
navBar.barStyle = .black
navBar.setBackgroundImage(UIImage(), for: .default)
navBar.shadowImage = UIImage()
navBar.isTranslucent = true
navBar.isHidden = false

1.Your NavigationBar is white,not black.So you must have a view (a white view) under NavigationBar,which is the superview of your greyView.The transparent setting works,but you cann't see it ,because the fontcolor is white too.
2.So you have to update your greyView's constraints,so it can extends under navigationbar .And then you can see your white title.
3.Maybe you have to Change your statusBar's UIStatusBarStyle to default or lightcontent,I noticed the font color of statusBar is white too.

The below code works for me
self.navigationController?.navigationBar.setBackgroundImage(UIImage(), for: UIBarMetrics.default)
self.navigationController?.navigationBar.shadowImage = UIImage()
self.navigationController?.navigationBar.isTranslucent = true
self.navigationController?.view.backgroundColor = .clear
self.navigationController?.navigationBar.backgroundColor = .clear

Translucent navigation and tab bars appearing opaque despite enabling transparency

I'm trying to create a translucent tab and navigation bar using my custom colors however nothing I try enables the transparency. I've looked online and most of them say the translucent boolean is set to true by default however even when I set it as well the bars still stay opaque.
UINavigationBar.appearance().barTintColor = UIColor.blueColor()
UINavigationBar.appearance().tintColor = UIColor.yellowColor()
UINavigationBar.appearance().translucent = true
UITabBar.appearance().tintColor = UIColor.yellowColor()
UITabBar.appearance().barTintColor = UIColor.blueColor()
UITabBar.appearance().translucent = true
Yes I've also tried using alpha values.

Try setting the background colour on the window in applicationDidFinishLaunching
application.window.backgroundColor = [UIColor redColor];

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