iOS中 UITabBarController中自定义UITabBar

来源：互联网发布：淘宝的全民抢拍编辑：程序博客网时间：2024/05/13 17:56

1.创建多个视图控制器，放如UITabBarController中

 AViewController  *aa = [[AViewController alloc] init];    UINavigationController* ayNav = [[UINavigationController alloc]initWithRootViewController:aa];   BViewController  *bb = [[BViewController alloc] init];   UINavigationController* bNav = [[UINavigationController alloc]initWithRootViewController:bb];    CViewController  *cc = [[CViewController alloc] init];    UINavigationController* cNav = [[UINavigationController alloc]initWithRootViewController:cc];    DViewController  *dd = [[DViewController alloc] init];    UINavigationController* dNav = [[UINavigationController alloc]initWithRootViewController:dd];    2.初始化tabbar   UITabBarController *tabBarController = [[UITabBarController alloc]init];   tabBarController.delegate=self;    tabBarController.viewControllers=[[NSArray alloc]initWithObjects:ayNav,bNav,cNav,dNav,nil];

3.获取到tabBarController中的tabBar，在从tabBar中获取到每个items

UITabBar *tabBar = tabBarController.tabBar; UITabBarItem *aTabBarItem = [tabBar.items objectAtIndex:0]; UITabBarItem *bTabBarItem = [tabBar.items objectAtIndex:1];UITabBarItem *cTabBarItem = [tabBar.items objectAtIndex:2];UITabBarItem *dTabBarItem = [tabBar.items objectAtIndex:3];

4. 设置tabBar中items的标题

aTabBarItem.title = @"小韩哥";bTabBarItem.title = @"iOS编程";cTabBarItem.title = @"ios开发";dTabBarItem.title = @"苹果系统";

5.设置tabBar中items的图片

[aTabBarItem setFinishedSelectedImage:[UIImage imageNamed:@"aa_selected.png"] withFinishedUnselectedImage:[UIImage imageNamed:@"1.png"]];[bTabBarItem setFinishedSelectedImage:[UIImage imageNamed:@"bb_selected.png"] withFinishedUnselectedImage:[UIImage imageNamed:@"2.png"]];[cTabBarItem setFinishedSelectedImage:[UIImage imageNamed:@"cc_selected.png"] withFinishedUnselectedImage:[UIImage imageNamed:@"3.png"]];[dTabBarItem setFinishedSelectedImage:[UIImage imageNamed:@"dd_selected.png"] withFinishedUnselectedImage:[UIImage imageNamed:@"4.png"]];

6.设置tabBar的背景图片

 UIImage* tabBarBackground = [UIImage imageNamed:@"tabbar1.png"]; [[UITabBar appearance] setBackgroundImage:[tabBarBackground resizableImageWithCapInsets:UIEdgeInsetsZero]]; [[UITabBar appearance] setSelectionIndicatorImage:[UIImage imageNamed:@"tabbar.png"]];

7.改变tabBar中items上字体的颜色

[[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:                                                   [UIColor grayColor], UITextAttributeTextColor,                                                   nil nil] forState:UIControlStateNormal]; UIColor *titleHighlightedColor = [UIColor colorWithRed:153/255.0 green:192/255.0 blue:48/255.0 alpha:1.0]; [[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:                                                    titleHighlightedColor, UITextAttributeTextColor,                                                   nil nil] forState:UIControlStateHighlighted];

8.将tabBarController加入window中

self.window.rootViewController = tabBarController;[self.window makeKeyAndVisible];

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