Ios 未选择的阿巴尔颜色？
我有一个有5个项目的UITabBar。我想更改所有项目的未选择颜色。这些项目没有在UIViewController类中声明（我构建了它们并在情节提要中链接了视图）Ios 未选择的阿巴尔颜色？,ios,uitabbarcontroller,uitabbar,uitabbaritem,Ios,Uitabbarcontroller,Uitabbar,Uitabbaritem,我有一个有5个项目的UITabBar。我想更改所有项目的未选择颜色。这些项目没有在UIViewController类中声明（我构建了它们并在情节提要中链接了视图） 是否有这样的代码：[[UITabBar外观]设置***取消***选择图像颜色：[UIColor whiteColor]]？所以说我不能删除被接受的答案（我尝试过），但很明显，有很多评论认为这对iOS 7不起作用 请参阅下面的另一个答案以及更多的投票，或@Liam对该答案的评论中的链接 仅适用于iOS 6 它应该是这么简单： [[UI
是否有这样的代码：
[[UITabBar外观]设置***取消***选择图像颜色：[UIColor whiteColor]]？所以说我不能删除被接受的答案（我尝试过），但很明显，有很多评论认为这对iOS 7不起作用
请参阅下面的另一个答案以及更多的投票，或@Liam对该答案的评论中的链接
仅适用于iOS 6
它应该是这么简单：
[[UITabBar appearance] setTintColor:[UIColor grayColor]]; // for unselected items that are gray
[[UITabBar appearance] setSelectedImageTintColor:[UIColor greenColor]]; // for selected items that are green
据我所知，这在iOS 7下不起作用。特别是，选项卡栏的tintColor将定义选定选项卡的颜色，而不是未选定选项卡的颜色。如果您想更改iOS 7中的默认设置，那么您似乎必须实际使用不同的图标（对于未选择的选项卡，使用您喜欢的颜色）并设置文本的颜色
此示例应将选定选项卡着色为红色，并将其他选项卡渲染为绿色。在TabBarController中运行以下代码：
// set color of selected icons and text to red
self.tabBar.tintColor = [UIColor redColor];
[[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys: [UIColor redColor], NSForegroundColorAttributeName, nil] forState:UIControlStateSelected];
// set color of unselected text to green
[[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIColor greenColor], NSForegroundColorAttributeName, nil]
forState:UIControlStateNormal];
// set selected and unselected icons
UITabBarItem *item0 = [self.tabBar.items objectAtIndex:0];
// this way, the icon gets rendered as it is (thus, it needs to be green in this example)
item0.image = [[UIImage imageNamed:@"unselected-icon.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
// this icon is used for selected tab and it will get tinted as defined in self.tabBar.tintColor
item0.selectedImage = [UIImage imageNamed:@"selected-icon.png"];
如果仅在故事板中设置图标，则只能控制所选选项卡的颜色（tintColor）。所有其他图标和相应文本将以灰色绘制
也许有人知道在iOS 7下采用颜色的更简单的方法？参考下面的答案：
可以如下所示设置选定和未选定选项卡栏按钮的着色颜色：
[[UIView appearanceWhenContainedIn:[UITabBar class], nil] setTintColor:[UIColor redColor]];
[[UITabBar appearance] setSelectedImageTintColor:[UIColor greenColor]];
if #available(iOS 13.0, *)
{
let appearance = tabBar.standardAppearance
appearance.stackedLayoutAppearance.normal.titleTextAttributes = [NSAttributedString.Key.foregroundColor: UIColor.black]
appearance.stackedLayoutAppearance.selected.titleTextAttributes = [NSAttributedString.Key.foregroundColor: UIColor.blue]
appearance.stackedLayoutAppearance.normal.iconColor = UIColor.black
appearance.stackedLayoutAppearance.selected.iconColor = UIColor.blue
tabBar.standardAppearance = appearance
}
else
{
tabBar.unselectedItemTintColor = UIColor.black
tabBar.tintColor = UIColor.blue
}
第一行设置未选择的颜色（本例中为红色），方法是在选项卡栏中设置UIView的tintColor。请注意，这仅设置未选定图像的着色颜色-它不会更改其下方文本的颜色
第二行将选项卡栏的选定图像着色颜色设置为绿色。扩展@Sven Tiffe针对iOS 7的答案，您可以让代码自动着色添加到情节提要中的未选定UITabBar图像。以下方法将使您无需创建两组图标图像（即选定和未选定）并以编程方式加载它们。将category方法imageWithColor:（请参见-）添加到项目中，然后将以下内容放入自定义UITabBarController viewDidLoad方法中：
// set the selected colors
[self.tabBar setTintColor:[UIColor whiteColor]];
[[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys: [UIColor whiteColor], NSForegroundColorAttributeName, nil] forState:UIControlStateSelected];
UIColor * unselectedColor = [UIColor colorWithRed:184/255.0f green:224/255.0f blue:242/255.0f alpha:1.0f];
// set color of unselected text
[[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:unselectedColor, NSForegroundColorAttributeName, nil]
forState:UIControlStateNormal];
// generate a tinted unselected image based on image passed via the storyboard
for(UITabBarItem *item in self.tabBar.items) {
// use the UIImage category code for the imageWithColor: method
item.image = [[item.selectedImage imageWithColor:unselectedColor] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
}
在UIImage+Overlay.m上创建名为UIImage+Overlay的类别（从中提取）：
将user3719695的答案转换为Swift，Swift现在使用扩展：
UIImage+Overlay.swift
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, CGBlendMode.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
}
}
override func viewDidLoad() {
super.viewDidLoad()
for item in self.tabBar.items! {
item.image = item.selectedImage?.imageWithColor(unselectedColor).imageWithRenderingMode(UIImageRenderingMode.AlwaysOriginal)
//In case you wish to change the font color as well
let attributes = [NSForegroundColorAttributeName: unselectedColor]
item.setTitleTextAttributes(attributes, forState: UIControlState.Normal)
}
}
customTabBar.swift
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, CGBlendMode.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
}
}
override func viewDidLoad() {
super.viewDidLoad()
for item in self.tabBar.items! {
item.image = item.selectedImage?.imageWithColor(unselectedColor).imageWithRenderingMode(UIImageRenderingMode.AlwaysOriginal)
//In case you wish to change the font color as well
let attributes = [NSForegroundColorAttributeName: unselectedColor]
item.setTitleTextAttributes(attributes, forState: UIControlState.Normal)
}
}
我不得不将代码移动到viewwillbeen
中，因为在viewDidLoad
中图像尚未设置
Swift 4翻译
import Foundation
import UIKit
extension UIImage {
func with(color: UIColor) -> UIImage {
guard let cgImage = self.cgImage else {
return self
}
UIGraphicsBeginImageContextWithOptions(size, false, scale)
let context = UIGraphicsGetCurrentContext()!
context.translateBy(x: 0, y: size.height)
context.scaleBy(x: 1.0, y: -1.0)
context.setBlendMode(.normal)
let imageRect = CGRect(x: 0, y: 0, width: size.width, height: size.height)
context.clip(to: imageRect, mask: cgImage)
color.setFill()
context.fill(imageRect)
let newImage = UIGraphicsGetImageFromCurrentImageContext()!
UIGraphicsEndImageContext();
return newImage
}
}
class MYTabBarController: UITabBarController {
let unselectedColor = UIColor(red: 108/255.0, green: 110/255.0, blue: 114/255.0, alpha: 1.0)
let selectedColor = UIColor.blue()
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
// Unselected state colors
for item in self.tabBar.items! {
item.image = item.selectedImage!.with(color: unselectedColor).withRenderingMode(.alwaysOriginal)
}
UITabBarItem.appearance().setTitleTextAttributes([.foregroundColor : unselectedColor], for: .normal)
// Selected state colors
tabBar.tintColor = selectedColor
UITabBarItem.appearance().setTitleTextAttributes([.foregroundColor : selectedColor], for: .selected)
}
}
@JoeGalid的imageWithColor:
含Xamarin的溶液：
using CoreGraphics;
using UIKit;
namespace Example
{
public static class UIImageExtensions
{
public static UIImage ImageWithColor(this UIImage image, UIColor color)
{
UIGraphics.BeginImageContextWithOptions(image.Size, false, image.CurrentScale);
color.SetFill();
var context = UIGraphics.GetCurrentContext();
context.TranslateCTM(0, image.Size.Height);
context.ScaleCTM(1.0f, -1.0f);
context.SetBlendMode(CoreGraphics.CGBlendMode.Normal);
var rect = new CGRect(0, 0, image.Size.Width, image.Size.Height);
context.ClipToMask(rect, image.CGImage);
context.FillRect(rect);
var newImage = UIGraphics.GetImageFromCurrentImageContext() as UIImage;
UIGraphics.EndImageContext();
return newImage;
}
}
}
然后在设置选项卡栏项目时使用它：
var image = UIImage.FromBundle("name");
barItem.Image = image.ImageWithColor(UIColor.Gray).ImageWithRenderingMode(UIImageRenderingMode.AlwaysOriginal);
barItem.SelectedImage = image.ImageWithColor(UIColor.Red).ImageWithRenderingMode(UIImageRenderingMode.AlwaysOriginal)
在iOS 10及更高版本中，有3种可能的简单解决方案：
A.代码实例（Swift）：
B.来自IB的实例：
添加类型为：Color
C.全球外观（Swift）：
从iOS 10+开始，通过编程实现这一点的新方法是使用API。例如，如果您已在AppDelegate
中初始化选项卡栏控制器，则如下所示：
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
...
}
iOS 10及更高版本中的Swift版本-
UITabBar.appearance().tintColor = UIColor.gray
UITabBar.appearance().unselectedItemTintColor = UIColor.gray
Swift 4版本（无隐式展开选项）：
UIImage+Overlay.swift
import UIKit
extension UIImage {
func with(color: UIColor) -> UIImage? {
guard let cgImage = self.cgImage else {
return self
}
UIGraphicsBeginImageContextWithOptions(size, false, scale)
if let context = UIGraphicsGetCurrentContext() {
context.translateBy(x: 0, y: size.height)
context.scaleBy(x: 1.0, y: -1.0)
context.setBlendMode(.normal)
let imageRect = CGRect(x: 0, y: 0, width: size.width, height: size.height)
context.clip(to: imageRect, mask: cgImage)
color.setFill()
context.fill(imageRect)
if let newImage = UIGraphicsGetImageFromCurrentImageContext() {
UIGraphicsEndImageContext();
return newImage
}
}
return nil;
}
}
class CustomTabBarController: UITabBarController {
override func viewDidLoad() {
super.viewDidLoad()
if #available(iOS 10.0, *) {
self.tabBar.unselectedItemTintColor = UIColor.init(white: 1, alpha: 0.5)
} else {
// Fallback on earlier versions
if let items = self.tabBar.items {
let unselectedColor = UIColor.init(white: 1, alpha: 0.5)
let selectedColor = UIColor.white
// Unselected state colors
for item in items {
if let selectedImage = item.selectedImage?.with(color: unselectedColor)?.withRenderingMode(.alwaysOriginal) {
item.image = selectedImage
}
}
UITabBarItem.appearance().setTitleTextAttributes([NSAttributedStringKey.foregroundColor : unselectedColor], for: .normal)
// Selected state colors
tabBar.tintColor = selectedColor
UITabBarItem.appearance().setTitleTextAttributes([NSAttributedStringKey.foregroundColor : selectedColor], for: .selected)
}
}
UITabBarItem.appearance().setTitleTextAttributes([NSAttributedStringKey.font: UIFont(name: "overpass-light", size: 12)!, NSAttributedStringKey.foregroundColor: UIColor.white], for: UIControlState.normal)
}
}
CustomTabBarController.swift
import UIKit
extension UIImage {
func with(color: UIColor) -> UIImage? {
guard let cgImage = self.cgImage else {
return self
}
UIGraphicsBeginImageContextWithOptions(size, false, scale)
if let context = UIGraphicsGetCurrentContext() {
context.translateBy(x: 0, y: size.height)
context.scaleBy(x: 1.0, y: -1.0)
context.setBlendMode(.normal)
let imageRect = CGRect(x: 0, y: 0, width: size.width, height: size.height)
context.clip(to: imageRect, mask: cgImage)
color.setFill()
context.fill(imageRect)
if let newImage = UIGraphicsGetImageFromCurrentImageContext() {
UIGraphicsEndImageContext();
return newImage
}
}
return nil;
}
}
class CustomTabBarController: UITabBarController {
override func viewDidLoad() {
super.viewDidLoad()
if #available(iOS 10.0, *) {
self.tabBar.unselectedItemTintColor = UIColor.init(white: 1, alpha: 0.5)
} else {
// Fallback on earlier versions
if let items = self.tabBar.items {
let unselectedColor = UIColor.init(white: 1, alpha: 0.5)
let selectedColor = UIColor.white
// Unselected state colors
for item in items {
if let selectedImage = item.selectedImage?.with(color: unselectedColor)?.withRenderingMode(.alwaysOriginal) {
item.image = selectedImage
}
}
UITabBarItem.appearance().setTitleTextAttributes([NSAttributedStringKey.foregroundColor : unselectedColor], for: .normal)
// Selected state colors
tabBar.tintColor = selectedColor
UITabBarItem.appearance().setTitleTextAttributes([NSAttributedStringKey.foregroundColor : selectedColor], for: .selected)
}
}
UITabBarItem.appearance().setTitleTextAttributes([NSAttributedStringKey.font: UIFont(name: "overpass-light", size: 12)!, NSAttributedStringKey.foregroundColor: UIColor.white], for: UIControlState.normal)
}
}
或者只是没有编码Swift 4，Xcode 10.1
使用界面生成器在视图控制器上添加uitabar
在左侧面板中选择添加的视图
键入cmd+alt+3
或只需单击右面板中的显示身份检查器
在用户定义的运行时属性部分
中，单击加上按钮添加一个新属性，并将其称为未选择的EditemTintColor
（请参阅）
在不离开上一步的部分（参见编号4）的情况下，在类型
列下选择颜色
类型
最后，在Value
部分下设置必要的颜色
编译您的项目
结束。祝贺你 使用swift未选择选项卡栏的颜色
获取TabBarViewController的引用
使用以下代码
[You tabbar controller name]?.tabBar.unselectedItemTintColor = [color name here]
希望能有所帮助。iOS 13中有一个新的外观API。要使用Xcode 11.0为选项卡项的图标和文本正确上色，可以如下使用：
[[UIView appearanceWhenContainedIn:[UITabBar class], nil] setTintColor:[UIColor redColor]];
[[UITabBar appearance] setSelectedImageTintColor:[UIColor greenColor]];
if #available(iOS 13.0, *)
{
let appearance = tabBar.standardAppearance
appearance.stackedLayoutAppearance.normal.titleTextAttributes = [NSAttributedString.Key.foregroundColor: UIColor.black]
appearance.stackedLayoutAppearance.selected.titleTextAttributes = [NSAttributedString.Key.foregroundColor: UIColor.blue]
appearance.stackedLayoutAppearance.normal.iconColor = UIColor.black
appearance.stackedLayoutAppearance.selected.iconColor = UIColor.blue
tabBar.standardAppearance = appearance
}
else
{
tabBar.unselectedItemTintColor = UIColor.black
tabBar.tintColor = UIColor.blue
}
注意—“UITextAttributeTextColor”已被弃用：首次在iOS 7.0中弃用-使用NSForegroundColorAttributeName:）这是更改图标ColorsOry@Atma的唯一解决方案，另外还有一个更简单的解决方案，用户3719695在6月发布。加上[UItabaritem外观]的1保存了我的一天谢谢：）但是有没有什么方法我们不需要为tabbar按钮设置单独的图像？完美的解决方案我的问题你可以在iOS 7上检查这个answare：这个可能的副本在iOS 7中不起作用。这一点对我很有用。对于iOS 10，使用这个self.dashboardTabBar.unselectedItemTintColor=UIColor.black
我会得到同样的结果。只有第一次。未选择的颜色有效，但在选择后它会切换回正常颜色，至少在7.1上是这样。这是迄今为止完成任务最简单的方法，不知道为什么它没有被标记为可接受的答案。在我的情况下，将上述代码添加到ViewWillAspect中就成功了。（在我的应用程序中调用viewDidLoad时，按钮还没有加载，因此上面的代码仅在放置在viewDidLoad中时更改文本颜色）。我认为应该是item.image=[[item.image imageWithColor…]
。另外，将imageWithColor
的代码也包括在内，这将改进您的答案