I am trying to change the color of the UINavigationBar as the User navigates to a different page. However my App does not change the color of the UINavigationBar until the user backs out of the page and goes back into the page once again. I tried putting the initialization code for changing the color in -(void)viewDidLoad and also -(void)viewWillAppear:(BOOL)animated. Here is how I am currently attempting to change the color:
-(void)viewWillAppear:(BOOL)animated{
[[UINavigationBar appearance] setBarTintColor:[UIColor colorWithRed:0.32f green:0.14f blue:0.32f alpha:1.00f]];
}
You should use something like that:
-(void)viewWillAppear:(BOOL)animated{
[self.navigationController.navigationBar setBarTintColor:[UIColor colorWithRed:0.32f green:0.14f blue:0.32f alpha:1.00f]];
}
That code you have changes title bar color for ALL UINavigationBar instances. It's application wide proxy. You don't want to use it if you need to change it in just one place.
Related
Xcode or iOS update has made the following code below function differently because now the navigation bar button background has a background color, unlike previously. Any fix? I want all buttons to have the same global color, but now it effects the navigation bar buttons which I dont want. I would like it transparent like before.
[[UIButton appearance] setBackgroundColor:[Helper getColor:self.application.color]];
As this particular UIButton is inside a UINavigationBar you could try applying a second specific appearance to 'override' the first general appearance set.
For example calling specifically,
[[UIButton appearanceWhenContainedIn:[UINavigationBar class], nil]
setBackgroundColor:[UIColor clearColor] forState:state barMetrics:metrics];
after you call,
[[UIButton appearance] setBackgroundColor:[Helper getColor:self.application.color]];
To override the general with the specific.
Docs Link: https://developer.apple.com/documentation/uikit/uiappearance
I am able to change tho color of NavigationBar by giving BackgroundColor but than I am not able change the color of StatusBar. Please provide a solution.
You should change the barTintColor instead of the background color.
[self.navigationController setBarTintColor:[UIColor redNavigationBarColor]];
Chances are that you will probably need to change also the barButton color and/or the the title color and all that should probably apply to more than one screen. So, to save you some time, if you want to globally change all these, put the code below in your app delegate
[[UINavigationBar appearance] setBarTintColor:[UIColor redColor]];
[[UINavigationBar appearance] setTitleTextAttributes:#{NSForegroundColorAttributeName : [UIColor whiteColor]}];
[[UINavigationBar appearance] setTintColor:[UIColor whiteColor]];
The code above will give you a red navigation bar with white title & buttons
I'm trying to set the colour of the cancel buttonBarItem to white on the Message / Mail activityItems presented with the UIActivityViewController but whatever I do it doesn't change them.
The cancel remains the standard default blue used in iOS7 as do other items in these views that ideally I would like to change. I've tried using the code below in the AppDelegate which sets the colour correctly throughout the rest of the app but it doesn't work when these views are presented.
[[UINavigationBar appearance] setTintColor:[UIColor whiteColor]];
These settings do retain their values when added to AppDelegate and these views are presented as can be seen below.
[[UINavigationBar appearance] setBarTintColor:SOLIDTEALCOLOR];
[[UINavigationBar appearance] setTitleTextAttributes:#{ NSForegroundColorAttributeName: [UIColor whiteColor]}];
Do I need to roll my own ActivityViewController using bespoke SLComposeViewControllers for each activityItem to have this degree of control this colour? It seem like an unnecessary large amount of work for something that really shouldn't be an issue.
After upgrading Xcode in iOS7.1 my navigation bar and UIToolbar buttons are not shown with correct colour.
When a view first appears the UIToolbar buttons all have the correct default blue colour and when I go to next page/view and come back to the previous view the toolbar buttons are shown in a grey colour.
I have tried to add the blue colour in viewDidLoad and viewWillAppear but no luck. Can someone please help me?
Thanks.
You can set up a theme for certain components all at once and they will be used throughout your application. In my app delegate I created a function when the application is initializing called setupTheme, and it does just that - sets up the "theme" of the application by saying things like [[UINavigationBar appearance] setBarTintColor:], which in effect sets the color of the navigation bar for ANY navigation controller throughout the app. Here's an example from an app that sets up some basic components that are reused so that any time you use them they will already have the correct theme applied.
- (void)setupTheme {
// get our theme colors
UIColor *primaryThemeColor = [UIColor blueColor];
UIColor *secondaryThemeColor = [UIColor whiteColor];
// nav bar
[[UINavigationBar appearance] setBarTintColor:primaryThemeColor];
[[UINavigationBar appearance] setTintColor:secondaryThemeColor];
[[UINavigationBar appearance] setTitleTextAttributes:#{NSForegroundColorAttributeName:secondaryThemeColor}];
// tab bar
[[UITabBar appearance] setTintColor:primaryThemeColor];
// switches
[[UISwitch appearance] setOnTintColor:primaryThemeColor];
// search bar
[[UIBarButtonItem appearanceWhenContainedIn:[UISearchBar class], nil] setTitleTextAttributes:#{NSForegroundColorAttributeName: [UIColor blackColor]} forState:UIControlStateNormal];
}
Check out the iOS 7 transition guide for more details on specifics https://developer.apple.com/library/iOs/documentation/UserExperience/Conceptual/TransitionGuide/Bars.html#//apple_ref/doc/uid/TP40013174-CH8-SW1
I am using a cocoa iOS component from cocoacontrols.com, which is NOT using storyboards. This class creates a new modal view and the modal view has a NavigationBar at the top. I am trying to get the color of the navigationBar to change. In all my other views, which are storyboard based, I use a base class of STBaseViewController which sets the navigationBar as white.
I have changed this cocoacontrol class to be a STBaseViewController instead of a UIViewController, but it still is not changing my background to white.
#interface BZPasscodeFieldController : STBaseViewController
In the BZPasscodeFieldController, which they don't make any reference to a navigationbar, so I am not sure how its even showing up (again it has no storyboard's only xibs and they don't have navigationbars)?
Anyway, does anyone know how to make the navigationbar background color white programatically?
Further, in all my storyboard viewControllers that have a UINavigationBar, I have added a UIButton over the area where the title goes, so that I can easily change the font/style and also make it clickable. I need to add this same UIButton to the uinavigationBar of this BZPasscodeFieldController created programatically. How would I go about doing that?
To Set Navigationbar Background Color:
[[UINavigationBar appearance] setBarTintColor:[UIColor orangeColor]];
To set Navigationbar Tint Color:
[[UINavigationBar appearance] setTintColor:[UIColor whiteColor]];
For your question about the button on the place of title of navigationBar. Each navigationBar has a titleView property, you can assign any view to it. For example take a look at this method, you can call it in your BZPasscodeFieldController:
- (void) setNavigationBarTitleButton
{
UIButton* centralButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 40, 44)];
[centralButton setImage:navigationCentralButtonImage forState:UIControlStateNormal];
[centralButton setShowsTouchWhenHighlighted:TRUE];
[centralButton addTarget:self action:#selector(goHigher) forControlEvents:UIControlEventTouchDown];
self.navigationItem.titleView = centralButton;
}
For your previous question the answers provided already are all correct, calling them in the right place(for example in AppDelegate's application:didFinishLaunchingWithOptions: should make it work well, unless something is messed up in your custom view controller classes.
[[UINavigationBar appearance] setTintColor:[UIColor blueColor]];
[self.navigationController.navigationBar setTintColor:[UIColor whiteColor]];