如何更改标签栏上的非活动图标/文本颜色？

Question

如何更改iOS 7标签栏上的非活动图标/文本颜色？灰色的那个。

Answer 1

在每个TabBar的每个第一个ViewController中：

- (void)viewDidLoad
{
    [super viewDidLoad];

    // changing the unselected image color, you should change the selected image 
    // color if you want them to be different
    self.tabBarItem.selectedImage = [[UIImage imageNamed:@"yourImage_selectedImage"]
    imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

    self.tabBarItem.image = [[UIImage imageNamed:@"yourImage_image"] 
    imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
}

这段代码的线索是'UIImageRenderingModeAlwaysOriginal'：

Apple文档的渲染模式：

UIImageRenderingModeAutomatic,          // Use the default rendering mode for the context where the image is used    
UIImageRenderingModeAlwaysOriginal,     // Always draw the original image, without treating it as a template
UIImageRenderingModeAlwaysTemplate,     // Always draw the image as a template image, ignoring its color information

要更改文字颜色：

在AppDelegate中：

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // Add this if you only want to change Selected Image color 
    // and/or selected image text
    [[UITabBar appearance] setTintColor:[UIColor redColor]];

    // Add this code to change StateNormal text Color,
    [UITabBarItem.appearance setTitleTextAttributes:
    @{NSForegroundColorAttributeName : [UIColor greenColor]} 
    forState:UIControlStateNormal];

    // then if StateSelected should be different, you should add this code
    [UITabBarItem.appearance setTitleTextAttributes:
    @{NSForegroundColorAttributeName : [UIColor purpleColor]} 
    forState:UIControlStateSelected];

    return YES;
}

Answer 2

您只需将此代码放在第一个调用TabBarViewController（ViewDidload）的ViewController中：

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    [self loadIconsTabBar];
}

-(void) loadIconsTabBar{
        UITabBar *tabBar = self.tabBarController.tabBar;
        //
        UITabBarItem *firstTab = [tabBar.items objectAtIndex:0];
        UITabBarItem *secondTab = [tabBar.items objectAtIndex:1];
        firstTab.image = [[UIImage imageNamed:@"icono1.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
        firstTab.selectedImage = [[UIImage imageNamed:@"icono1.png"]imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
        secondTab.image = [[UIImage imageNamed:@"icono2.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
        secondTab.selectedImage = [[UIImage imageNamed:@"icono2.png"]imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
    }

Answer 3

不使用tabBarItem在每个viewController中添加渲染图像代码，而是使用扩展名

extension UITabBar{
     func inActiveTintColor() {
        if let items = items{
            for item in items{
                item.image =  item.image?.withRenderingMode(.alwaysOriginal)
                item.setTitleTextAttributes([NSForegroundColorAttributeName : UIColor.green], for: .normal)
                item.setTitleTextAttributes([NSForegroundColorAttributeName : UIColor.white], for: .selected)
            }
        }
    }
}

然后在你的UITabBarController类中调用它

class CustomTabBarViewController: UITabBarController {

    override func viewDidLoad() {
        super.viewDidLoad()
        tabBar.inActiveTintColor()
    }
}

您将获得如下输出：注意：不要忘记将CustomTabBarViewController类分配给storyboard中的TabBarController。

Answer 4

您只需将此代码放入appDelegate.m中调用（didFinishLaunchingWithOptions）：

[UITabBarItem.appearance setTitleTextAttributes:
@{NSForegroundColorAttributeName : [UIColor whiteColor]}
                                       forState:UIControlStateNormal];


[UITabBarItem.appearance setTitleTextAttributes:
@{NSForegroundColorAttributeName : [UIColor orangeColor]}
                                       forState:UIControlStateSelected];

[[UITabBar appearance] setTintColor:[UIColor whiteColor]]; // for unselected items that are gray
[[UITabBar appearance] setUnselectedItemTintColor:[UIColor whiteColor]]; 

Answer 5

如果您正在寻找iOS 11 swift 4解决方案，请在appDelegate中执行此类操作。这将所有未选择的变为黑色。

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
    // Override point for customization after application launch.

    UITabBar.appearance().unselectedItemTintColor = UIColor(displayP3Red: 0, green: 0, blue: 0, alpha: 1)

    return true
}

Answer 6

更改Selected选项卡栏项颜色的最佳方法是在appdelegate didFinishLaunchingWithOptions方法上添加单个代码

UITabBar.appearance().tintColor = UIColor(red: 242/255.0, green: 32/255.0, blue: 80/255.0, alpha: 1.0)

它将更改所选项目文本颜色

Answer 7

您可以通过界面构建​​器完成所有操作，查看此答案，它显示了如何同时执行活动和非活动，"Change tab bar item selected color in a storyboard"

Answer 8

对于swift 3：

    // both have to declare in view hierarchy method
    //(i.e: viewdidload, viewwillappear) according to your need.

    //this one is, when tab bar is selected
    self.tabBarItem.selectedImage = UIImage.init(named: "iOS")?.withRenderingMode(.alwaysOriginal)

    // this one is when tab bar is not selected
    self.tabBarItem.image = UIImage.init(named: "otp")?.withRenderingMode(.alwaysOriginal)

Answer 9

这对SWIFT 3有用

viewConroller.tabBarItem = UITabBarItem(title: "", image: UIImage(named: "image")?.withRenderingMode(.alwaysOriginal),
                                selectedImage:  UIImage(named: "image"))

Answer 10

Swift解决方案：对于UNSELECED项：在每个ViewController中 - > ViewDidLoad（）

self.tabBarItem = UITabBarItem(title: nil, image: UIImage(named: "PHOTO_NAME")?.imageWithRenderingMode(.AlwaysOriginal), selectedImage: UIImage(named: "NAME"))

Answer 11

您还可以直接在资产目录中设置标签栏图像的属性Render As。在那里，您可以选择将属性设置为Default，Original Image和Template Image。

Answer 12

用于更改tabbar的取消选择图标的颜色

对于iOS 10以下：

// this code need to be placed on home page of tabbar    
for(UITabBarItem *item in self.tabBarController.tabBar.items) {
    item.image = [item.image imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
}

iOS 10以上：

// this need to be in appdelegate didFinishLaunchingWithOptions
[[UITabBar appearance] setUnselectedItemTintColor:[UIColor blackColor]];

Answer 13

而是将其添加到每个UIViewController，您可以创建扩展并更改UITabBarController的外观

更改未选择的图标颜色

extension UITabBarController {
    override public func viewDidLoad() {
        super.viewDidLoad()

        tabBar.items?.forEach({ (item) -> () in
           item.image = item.selectedImage?.imageWithColor(UIColor.redColor()).imageWithRenderingMode(.AlwaysOriginal)
        })
    }
}

更改所选图标颜色

let tabBarAppearance = UITabBar.appearance()
tabBarAppearance.tintColor = UIColor.blackColor()

更改（取消）选定的标题颜色

let tabBarItemApperance = UITabBarItem.appearance()
tabBarItemApperance.setTitleTextAttributes([NSFontAttributeName: UIFont(name: "Edmondsans-Bold", size: 10)!, NSForegroundColorAttributeName:UIColor.redColor()], forState: UIControlState.Normal)
tabBarItemApperance.setTitleTextAttributes([NSFontAttributeName: UIFont(name: "Edmondsans-Bold", size: 10)!, NSForegroundColorAttributeName:UIColor.blackColor()], forState: UIControlState.Selected)

UIImage扩展

extension UIImage {
    func imageWithColor(color1: UIColor) -> UIImage {
        UIGraphicsBeginImageContextWithOptions(self.size, false, self.scale)
        color1.setFill()

        let context = UIGraphicsGetCurrentContext()
        CGContextTranslateCTM(context!, 0, self.size.height)
        CGContextScaleCTM(context!, 1.0, -1.0);
        CGContextSetBlendMode(context!, .Normal)

        let rect = CGRectMake(0, 0, self.size.width, self.size.height) as CGRect
        CGContextClipToMask(context!, rect, self.CGImage!)
        CGContextFillRect(context!, rect)

        let newImage = UIGraphicsGetImageFromCurrentImageContext()! as UIImage
        UIGraphicsEndImageContext()

        return newImage
    }
}

Answer 14

通过仅使用appdelegate.m，可以更好地使用每个ViewController

在你的AppDelegate.m - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions函数中，试试这个。

UITabBarController *tabBarController = (UITabBarController *)self.window.rootViewController;
UITabBar *tabBar = tabBarController.tabBar;

// repeat for every tab, but increment the index each time
UITabBarItem *firstTab = [tabBar.items objectAtIndex:0];

// also repeat for every tab
firstTab.image = [[UIImage imageNamed:@"someImage.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
firstTab.selectedImage = [[UIImage imageNamed:@"someImageSelected.png"]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

Answer 15

要更改选项卡选择颜色而不是蓝色：

1. 选择tabItem。
2. 从右侧菜单中的“显示标识检查器”。
3. 使用您喜欢的颜色设置“tintColor”属性。

Answer 16

使用Swift 3从iOS 10+开始以编程方式执行此操作的新答案是使用unselectedItemTintColor API。例如，如果您在AppDelegate中初始化了标签栏控制器，它将如下所示：

 func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        ...

        let firstViewController = VC1()
        let secondViewController = VC2()
        let thirdViewController = VC3()


        let tabBarCtrl = UITabBarController()
        tabBarCtrl.viewControllers = [firstViewController, secondViewController, thirdViewController]

        // set the color of the active tab
        tabBarCtrl.tabBar.tintColor = UIColor.white

        // set the color of the inactive tabs
        tabBarCtrl.tabBar.unselectedItemTintColor = UIColor.gray

        // set the text color

        ...
    }

并设置选定和未选定的文本颜色：

let unselectedItem = [NSForegroundColorAttributeName: UIColor.green]
let selectedItem = [NSForegroundColorAttributeName: UIColor.red]

self.tabBarItem.setTitleTextAttributes(unselectedItem, for: .normal)
self.tabBarItem.setTitleTextAttributes(selectedItem, for: .selected)

Answer 17

在Swift 3.0中，您可以按如下方式编写它

对于未选中的标签栏图像

viewController.tabBarItem.image = UIImage(named: "image")?.withRenderingMode(.alwaysOriginal)

对于选定的标签栏图像

viewController.tabBarItem.selectedImage = UIImage(named: "image")?.withRenderingMode(.alwaysOriginal)

Answer 18

我认为@ anka的答案非常好，我还添加了以下代码，以便为突出显示的项目启用色调颜色：

    let image = UIImage(named:"tab-account")!.imageWithRenderingMode(.AlwaysTemplate)
    let item = tabBar.items![IC.const.tab_account] as! UITabBarItem
    item.selectedImage = image

或者在一行中：

    (tabBar.items![IC.const.tab_account] as! UITabBarItem).selectedImage = UIImage(named:"tab-account")!.imageWithRenderingMode(.AlwaysTemplate)

所以它看起来像：