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在IOS7以前，UITabbarItem的图片都是被固定渲染为蓝色，想要改变UITabbarItem的图片颜色就必须要自定义，在IOS7以后，得到了更新，方便大家自己去设定颜色，下面给出代码！
1、创建UITabbarItem的默认图片和选中图片
//第一个界面 ChildViewController *childvc = [[ChildViewController alloc]initWithNibName:nil bundle:nil]; UINavigationController *childnav = [[UINavigationController alloc]initWithRootViewController:childvc]; // UITabBarItem *childItem = [[UITabBarItem alloc]init]; UITabBarItem *childItem = [[UITabBarItem alloc]initWithTitle:@"孩子情况" image:[UIImage imageNamed:@"关于孩子 默认效果.png"] tag:1]; childItem.selectedImage = [[UIImage imageNamed:@"关于孩子 选中效果.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]; childnav.tabBarItem = childItem;
初始化的方法最好是用这个
- (instancetype)initWithTitle:(NSString *)title image:(UIImage *)image tag:(NSInteger)tag;
其中
childItem.selectedImage = [[UIImage imageNamed:@"关于孩子 选中效果.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
这句话就是设置选中时候的图片，始终让图片保持原样不被渲染为蓝色。
imageWithRenderingMode是UIImage的一个渲染模式，着色（Tint Color）是iOS7界面中的一个.设置UIImage的渲染模式：UIImage.renderingMode重大改变，你可以设置一个UIImage在渲染时是否使用当前视图的Tint Color。UIImage新增了一个只读属性：renderingMode，对应的还有一个新增方法：imageWithRenderingMode:，它使用UIImageRenderingMode枚举值来设置图片的renderingMode属性。该枚举中包含下列值：
renderingMode属性的默认值是UIImageRenderingModeAutomatic，即UIImage是否使用Tint Color取决于它显示的位置。
2、设置UITabbarItem的title的颜色不被渲染
[[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIColor lightGrayColor], UITextAttributeTextColor, nil] forState:UIControlStateNormal]; [[UITabBarItem appearance] setTitleTextAttributes: [NSDictionary dictionaryWithObjectsAndKeys:[UIColor colorWithRed:59.0/255.0 green:207.0/255.0 blue:202.0/255.0 alpha:1],UITextAttributeTextColor, nil]forState:UIControlStateSelected];
其中上面的那句是设置默认颜色的，下面的时设置选中后的字体的颜色。
下面是完整的AppDelegate.m方法：
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; //第一个界面 ChildViewController *childvc = [[ChildViewController alloc]initWithNibName:nil bundle:nil]; UINavigationController *childnav = [[UINavigationController alloc]initWithRootViewController:childvc]; // UITabBarItem *childItem = [[UITabBarItem alloc]init]; UITabBarItem *childItem = [[UITabBarItem alloc]initWithTitle:@"孩子情况" image:[UIImage imageNamed:@"关于孩子 默认效果.png"] tag:1]; childItem.selectedImage = [[UIImage imageNamed:@"关于孩子 选中效果.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]; childnav.tabBarItem = childItem; //第二个界面 KKViewController *chatvc = [[KKViewController alloc]initWithNibName:nil bundle:nil]; UINavigationController *chatNav = [[UINavigationController alloc]initWithRootViewController:chatvc]; UITabBarItem *chatItem = [[UITabBarItem alloc]initWithTitle:@"聊天" image:[UIImage imageNamed:@"沟通 默认.png"] tag:2]; chatItem.selectedImage = [[UIImage imageNamed:@"沟通 选中.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]; chatNav.tabBarItem = chatItem; //第三个界面 ToolsViewController *toolvc = [[ToolsViewController alloc]initWithNibName:nil bundle:nil]; UINavigationController *toolNav = [[UINavigationController alloc]initWithRootViewController:toolvc]; UITabBarItem *toolItem = [[UITabBarItem alloc]initWithTitle:@"工具栏" image:[UIImage imageNamed:@"工具栏 默认.png"] tag:3]; toolItem.selectedImage = [[UIImage imageNamed:@"工具栏 选中.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]; toolNav.tabBarItem = toolItem; //第四个界面 PersonViewController *loginvc = [[PersonViewController alloc]initWithNibName:nil bundle:nil]; UINavigationController *loginnav = [[UINavigationController alloc]initWithRootViewController:loginvc]; UITabBarItem *loginItem = [[UITabBarItem alloc]initWithTitle:@"个人中心" image:[UIImage imageNamed:@"个人中心 默认.png"] tag:4]; loginItem.selectedImage = [[UIImage imageNamed:@"个人中心 选中.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]; loginnav.tabBarItem = loginItem; [[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIColor lightGrayColor], UITextAttributeTextColor, nil] forState:UIControlStateNormal]; [[UITabBarItem appearance] setTitleTextAttributes: [NSDictionary dictionaryWithObjectsAndKeys:[UIColor colorWithRed:59.0/255.0 green:207.0/255.0 blue:202.0/255.0 alpha:1],UITextAttributeTextColor, nil]forState:UIControlStateSelected]; UITabBar *tb=[[UITabBar alloc] initWithFrame:CGRectMake(0.0, 0.0, 320.0, 96.0) ] ; [self.window addSubview:tb]; UITabBarController *tbc = [[UITabBarController alloc]init]; tbc.viewControllers = @[childnav,chatNav,toolNav,loginnav]; self.window.rootViewController = tbc; self.window.backgroundColor = [UIColor whiteColor]; [self.window makeKeyAndVisible]; return YES; }
有疑问的请留言相互交流！
IOS7以后无需自定义，改变UITabbarItem的图片文字颜色
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原文地址：http://www.cnblogs.com/csdnIOS/p/4207752.html
