I have a navigation bar on a viewController that I can enable/disable. The problem is I can't get the font for the UIBarButtonItems to change colors after the view initially loads, though the back arrow will change.
I disable the UINavigationBar on myViewController with the following line of code:
self.navigationController.navigationBar.userInteractionEnabled = NO;
I have UIControlStates configured in AppDelegate.m for UIBarButtonItems for enabled and disabled, but nothing happens to the font after the view initially loads.
In my AppDelegate.m, I have the following code to set the UINavigationBar's font and color:
// UIBarButtonItem styling
NSShadow *shadow = [[NSShadow alloc]init];
shadow.shadowOffset = CGSizeMake(0.0, 1.0);
shadow.shadowColor = [UIColor whiteColor];
// enabled
NSDictionary *enabledTextAttributeDictionary = #{NSForegroundColorAttributeName : [UIColor customCellHyperlinkColor], NSShadowAttributeName: shadow, NSFontAttributeName:[UIFont fontWithName:#"GillSans" size:17.0]};
[[UIBarButtonItem appearanceWhenContainedIn:[UINavigationBar class], nil] setTitleTextAttributes:enabledTextAttributeDictionary forState:UIControlStateNormal];
// disabled
NSDictionary *disabledTextAttributeDictionary = #{NSForegroundColorAttributeName : [UIColor lightGrayColor], NSShadowAttributeName: shadow, NSFontAttributeName:[UIFont fontWithName:#"GillSans" size:17.0]};
[[UIBarButtonItem appearanceWhenContainedIn:[UINavigationBar class], nil] setTitleTextAttributes:disabledTextAttributeDictionary forState:UIControlStateDisabled];
// UINavigationBarTitle styling
NSDictionary *titleAttributeDictionary = #{NSForegroundColorAttributeName : [UIColor blackColor], NSShadowAttributeName: shadow, NSFontAttributeName:[UIFont fontWithName:#"GillSans" size:19.0]};
[[UINavigationBar appearanceWhenContainedIn:[UINavigationController class], nil]setTitleTextAttributes:titleAttributeDictionary];
I thought since I configured the 2 states (UIControlStateNormal/UIControlStateDisabled) in AppDelegate.m, nothing needs to be done other than enable/disable the navigationBar. Enable/disable does indeed enable/disable, but the color on the back button label doesn't change (though it does initially set to the color I set for UIControlStateNormal in AppDelegate).
I tried to manually set it, but the label on the backButtonItem stays blue while the icon to the left of it tints light gray. What (obvious thing) am I missing that is preventing me from changing the color of my back button font?
I think you are looking for this
Add this code in you AppDelegate.m
NSShadow *shadow = [[NSShadow alloc] init];
shadow.shadowOffset = CGSizeMake(0.0, 1.0);
shadow.shadowColor = [UIColor clearColor];
[[UIBarButtonItem appearanceWhenContainedIn:[UINavigationBar class], nil]
setTitleTextAttributes:
#{NSForegroundColorAttributeName:[UIColor redColor],
NSShadowAttributeName:shadow,
NSFontAttributeName:[UIFont systemFontOfSize:13.0]
}
forState:UIControlStateNormal];
I think you need to use
[self.navigationController.navigationBar setBarTintColor:[UIColor lightGrayColor]];
self.navigationController.navigationBar.tintColor = [UIColor lightGrayColor];
[self.navigationController.navigationBar setTitleTextAttributes:#{NSForegroundColorAttributeName : [UIColor lightGrayColor], NSFontAttributeName : place your font here}];
instead of
self.navigationController.navigationBar.tintColor = [UIColor lightGrayColor];
Related
I want to do something like this:
In Setting of app, can chose a color, after that some UI element like Navigationbar, tabbar highlight will change to that color.
Is there anyway of tut for that?
Here's how you'd do it in Objective-C.
- (void)setCustomizedNavigationBarStyle {
// UIBarButtonItem styling
NSShadow *shadow = [[NSShadow alloc]init];
shadow.shadowOffset = CGSizeMake(0.0, 1.0);
shadow.shadowColor = [UIColor clearColor];
NSDictionary *enabledTextAttributeDictionary = #{NSForegroundColorAttributeName : [UIColor darkGrayColor], NSShadowAttributeName: shadow, NSFontAttributeName:[UIFont fontWithName:#"GillSans" size:17.0]};
[[UIBarButtonItem appearanceWhenContainedInInstancesOfClasses:#[[UINavigationBar class]]] setTitleTextAttributes:enabledTextAttributeDictionary forState:UIControlStateNormal];
NSDictionary *disabledTextAttributeDictionary = #{NSForegroundColorAttributeName : [UIColor lightGrayColor], NSShadowAttributeName: shadow, NSFontAttributeName:[UIFont fontWithName:#"GillSans" size:17.0]};
[[UIBarButtonItem appearanceWhenContainedInInstancesOfClasses:#[[UINavigationBar class]]] setTitleTextAttributes:disabledTextAttributeDictionary forState:UIControlStateDisabled];
// UINavigationBarTitle styling
NSDictionary *titleAttributeDictionary = #{NSForegroundColorAttributeName : [UIColor blackColor], NSShadowAttributeName: shadow, NSFontAttributeName:[UIFont fontWithName:#"GillSans" size:18.0]};
[[UINavigationBar appearanceWhenContainedInInstancesOfClasses:#[[UINavigationController class]]]setTitleTextAttributes:titleAttributeDictionary];
}
You could call this in didFinishLaunchingWithOptions. Once you translate to Swift, you'd add this line to didFinishLaunchingWithOptions:
setCustomizedNavigationBarStyle()
This should be readily translatable into Swift.
Adding to this, you can create a custom palette of colors. You may find this post on the topic helpful:
How do I create a category in Xcode 6 or higher?
You could save the color in NSUserDefaults and retrieve it by the key whenever you need to set that color to your view elements. You'll need an extension to NSUserDefaults that returns an UIColor.
Check out the accepted answer to this question.
Hope it helps!
UPDATE ANSWERED. BY ME.
Currently having problems with the text color change of my UISegmentedControl; it needs to change on first load with UIControlStateSelected. Code works, but only conditionally. It works when you visit the page with the segmented control on the navigation bar, hit the back button, and then visit the page again. I'm assuming there's a problem with inheritance here. Let me explain..
The location of the the segmented control lies on top of my navigation bar.
Inheritance of the ViewController which contains the SegmentedControl:
TabBarViewController(managed with AppDelegate)-->navigation Controller-->ViewController(where 'inviteSegBar' lies)
Here's the code within AppDelegate.m:
[[UINavigationBar appearance] setBarTintColor:[UIColor colorWithHexString:#"#669900"]];//this one sets it green.
[[UINavigationBar appearance] setBackgroundColor:[UIColor whiteColor]];
And here's the viewDidLoad: code for the VC which contains 'inviteSegBar', the UISegmentedControl in question:
- (void)viewDidLoad
{
[super viewDidLoad];
//CUSTOM APPEARANCE <below>
self.navigationController.navigationBar.barTintColor = [UIColor whiteColor];
self.navigationController.navigationBar.tintColor = [UIColor colorWithHexString:#"#669900"];
inviteSegBar.tintColor = [UIColor colorWithHexString:#"#333333"];
[[UISegmentedControl appearance] setTitleTextAttributes:#{NSForegroundColorAttributeName : [UIColor colorWithHexString:#"#669900"]} forState:UIControlStateSelected];
}
Like I said the last line works, but only when you re-visit the page. Why is this happening?
PS This is the same issue guys, I had already tried this code before any of the answers were listed.
ANSWER FOUND: Simply move
[[UISegmentedControl appearance] setTitleTextAttributes:#{NSForegroundColorAttributeName : [UIColor colorWithHexString:#"#669900"]} forState:UIControlStateSelected];
to your AppDelegate.m file
Use
UIColor *whitecolor = [UIColor whiteColor];
NSDictionary *attributes = [NSDictionary dictionaryWithObjects:#[whitecolor] forKeys:#[UITextAttributeTextColor]];
[yourSegment setTitleTextAttributes:attributes
forState:UIControlStateNormal];
UIColor *grayColor = [UIColor darkGrayColor];
NSDictionary *attributes = [NSDictionary dictionaryWithObjects:#[grayColor] forKeys:#[UITextAttributeTextColor]];
[yourSegment setTitleTextAttributes:attributes
forState:UIControlStateSelected];
update
UIColor *whitecolor = [UIColor whiteColor];
NSDictionary *attributes = [NSDictionary dictionaryWithObjects:#[whitecolor] forKeys:#[NSForegroundColorAttributeName]];
[yourSegment setTitleTextAttributes:attributes
forState:UIControlStateNormal];
UIColor *grayColor = [UIColor darkGrayColor];
NSDictionary *attributes = [NSDictionary dictionaryWithObjects:#[grayColor] forKeys:#[NSForegroundColorAttributeName]];
[yourSegment setTitleTextAttributes:attributes
forState:UIControlStateSelected];
This code allows you to set some text attributes for label in segmented control:
NSDictionary *attributes = [NSDictionary dictionaryWithObjectsAndKeys:
[UIColor blackColor], UITextAttributeTextColor,
nil];
[_segmentedControl setTitleTextAttributes:attributes forState:UIControlStateSelected];
More allowed attributes in Apple documentation: link
This may help you:
UIAppearance proxy to set title text attributes but preserve tintColor for borders.
[[UISegmentedControl appearance] setTitleTextAttributes:#{
NSForegroundColorAttributeName : [UIColor redColor]
} forState:UIControlStateNormal];
For change UISegmentedControl appearance insert for example into viewDidLoad function this code:
// color selected text ---> red
[[UISegmentedControl appearance] setTitleTextAttributes:#{ NSForegroundColorAttributeName : [UIColor redColor] } forState:UIControlStateSelected];
// color disabled text ---> blue
[[UISegmentedControl appearance] setTitleTextAttributes:#{ NSForegroundColorAttributeName : [UIColor blueColor] } forState:UIControlStateNormal];
// color tint segmented control ---> black
[[UISegmentedControl appearance] setTintColor:[UIColor greenColor]];
I am trying to change the look of the UINavigationBar in my iOS7 app. I am doing the following:
- (void)viewDidLoad
{
[super viewDidLoad];
m_sNumberToCall = #"";
UIBarButtonItem * btn = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:#"IconHome.png"] style:UIBarButtonItemStyleBordered target:self action:#selector(btHomeTouched:)];
self.navigationItem.leftBarButtonItem = btn;
self.navigationController.navigationBar.translucent = YES;
[[UINavigationBar appearance] setBackgroundImage:[UIImage imageNamed:#"TVCNavBack.png"] forBarMetrics:UIBarMetricsDefault];
NSShadow * shadow = [[NSShadow alloc] init];
shadow.shadowColor = [UIColor colorWithRed:0.0 green:0.0 blue:0.0 alpha:0.8];
shadow.shadowOffset = CGSizeMake(0, 1);
[[UINavigationBar appearance] setTitleTextAttributes: [NSDictionary dictionaryWithObjectsAndKeys:
[UIColor colorWithRed:245.0/255.0 green:245.0/255.0 blue:245.0/255.0 alpha:1.0],
NSForegroundColorAttributeName,
shadow,
NSShadowAttributeName,
[UIFont fontWithName:#"Helvetica-Bold" size:21.0],
NSFontAttributeName,
nil]];
}
But, the first time I present the UITableViewController it is the standard iOS7 nav bar, then I press home and present it again and it is my new look.
Any ideas why it does not work the first time?
Don't change the appearance but the navigation bar directly. The appearance affects only the future instances but not the already created ones.
Change:
[[UINavigationBar appearance] setBackgroundImage:[UIImage imageNamed:#"TVCNavBack.png"] forBarMetrics:UIBarMetricsDefault];
to:
[self.navigationController.navigationBar setBackgroundImage:[UIImage imageNamed:#"TVCNavBack.png"] forBarMetrics:UIBarMetricsDefault];
The answer before only helps you with the background image but not with the title text attributes.
You don't need to change your code but all you have to do is move it to
applicationDidFinishLaunchingWithOptions
in your AppDelegate.m file.
This crashes the app:
[[UINavigationBar appearance] setTitleColor:[UIColor darkGrayColor] forState:UIControlStateNormal];
Is there a way to do this using appearance?
This worked:
NSDictionary *textTitleOptions = [NSDictionary dictionaryWithObjectsAndKeys:[UIColor darkGrayColor], UITextAttributeTextColor, [UIColor whiteColor], UITextAttributeTextShadowColor, nil];
[[UINavigationBar appearance] setTitleTextAttributes:textTitleOptions];
Here's an example of how to do this in Swift:
UINavigationBar.appearance().titleTextAttributes =
[NSFontAttributeName:UIFont(name:"Exo2-Bold", size: 18) as! AnyObject,
NSForegroundColorAttributeName:UIColor.whiteColor()]
That crashes the app before UINavigationBar doesn't have a title or state... Those are UIButton methods
You need
[[UINavigationBar appearance] setTintColor:[UIColor darkGrayColor]];
The #RyJ answer is great and worked for me. Thought I'd chip in that there's a good tutorial on this in Ray Wenderlich's site, titled (excuse the pun):
User Interface Customization in iOS 6
See the section Customizing UINavigationBar
Here's the code snippet for the navigation bar title, to change globally:
// Customize the title text for *all* UINavigationBars
[[UINavigationBar appearance] setTitleTextAttributes:
[NSDictionary dictionaryWithObjectsAndKeys:
[UIColor colorWithRed:255.0/255.0 green:255.0/255.0 blue:255.0/255.0 alpha:1.0],
UITextAttributeTextColor,
[UIColor colorWithRed:0.0 green:0.0 blue:0.0 alpha:0.8],
UITextAttributeTextShadowColor,
[NSValue valueWithUIOffset:UIOffsetMake(0, -1)],
UITextAttributeTextShadowOffset,
[UIFont fontWithName:#"Arial-Bold" size:0.0],
UITextAttributeFont,
nil]];
One other minor point is that it seems there's a default shadow on the title bar, so to get rid of it, you can't just remove the attribute. Instead you have to set a shadow offset:
UITextAttributeTextShadowOffset : [NSValue valueWithUIOffset:UIOffsetMake(0, 0)]
for iOS 15
let appearance = UINavigationBarAppearance()
appearance.configureWithOpaqueBackground()
appearance.backgroundColor = <PREFERRED BACKGROUND COLOR>
appearance.titleTextAttributes = [.foregroundColor : <PREFERRED TITLE COLOR>]
navigationBar.tintColor = <PREFERED TINT COLOR> //for bar buttons
navigationBar.standardAppearance = appearance;
navigationBar.scrollEdgeAppearance = navigationBar.standardAppearance
I used following code to change the title bar's color.
NSShadow *shadow = [[NSShadow alloc] init];
shadow.shadowColor = [UIColor blackColor];
shadow.shadowOffset = CGSizeMake(1, 0);
NSDictionary *titleTextAttributes = #{NSForegroundColorAttributeName:[UIColor whiteColor],
NSShadowAttributeName:shadow};
[[UINavigationBar appearance] setTitleTextAttributes:titleTextAttributes];
Using modern syntax and code that actually runs, this is how to globally style your UINavigationBar title text:
NSShadow *navigationBarTitleShadow = [[NSShadow alloc] init];
navigationBarTitleShadow.shadowColor = [UIColor colorWithWhite:0.5
alpha:0.5];
navigationBarTitleShadow.shadowOffset = CGSizeMake(2.0, 2.0);
[[UINavigationBar appearance] setTitleTextAttributes:#{ NSForegroundColorAttributeName : [UIColor blackColor],
NSFontAttributeName : [UIFont fontWithName:#"Arial-BoldMT"
size:30.0],
NSShadowAttributeName : navigationBarTitleShadow }];
Note: NSShadow's shadowBlurRadius property is not respected.
Note: Shadows are so iOS 6. Don't ever use them.
I want to change the color of back button of a navigation bar to make it look like this
Set the backBarButtonItem's tintColor:
self.navigationItem.backBarButtonItem.tintColor = [UIColor redColor];
TIP: If you want this to be applied to all UIBarButtonItem instances in your application by default, then you can use the new UIAppearance API to do just that:
[[UIBarButtonItem appearance] setTintColor:[UIColor redColor]];
The first line of jacob's answer didn't work for me because the backBarButtonItem was NULL. It is NULL because it's been created later automatically when switching to an other ViewController. At that time you can set the title of the button with
self.title = #"nice title"; // self is here the view(controller) within the popoverController
but you can't set the tintColor.
What worked for me, was to create a new UIBarButtonItem without any style. Then set the title and color propertys and set it as backBarButtonItem.
UIBarButtonItem *backButton = [[UIBarButtonItem alloc] init];
backButton.title = #"go back - now!";
backButton.tintColor = [UIColor colorWithRed:0.1 green:0.5 blue:0.7 alpha:1.0];
self.navigationItem.backBarButtonItem = backButton;
[okButton release];
If you want to make the button look exactly like in your picture, you may use an image, too:
[[UIBarButtonItem appearance] setBackButtonBackgroundImage:[UIImage imageNamed:#"back_button_bg"]
forState:UIControlStateNormal
barMetrics:UIBarMetricsDefault];
The background image must be a resizable image for good results.
Best way I found to set it globally or locally is
[[UIBarItem appearance] setTitleTextAttributes:
[NSDictionary dictionaryWithObjectsAndKeys:
[UIColor colorWithRed:220.0/255.0 green:104.0/255.0 blue:1.0/255.0 alpha:1.0], UITextAttributeTextColor,
[UIColor colorWithRed:1.0 green:1.0 blue:1.0 alpha:1.0], UITextAttributeTextShadowColor,
[NSValue valueWithUIOffset:UIOffsetMake(0, 1)], UITextAttributeTextShadowOffset,
[UIFont fontWithName:#"AmericanTypewriter" size:0.0], UITextAttributeFont,
nil]
forState:UIControlStateNormal];
[[UINavigationBar appearance]setTintColor:[UIColor whiteColor]];
try this It is working for me...