UITabbar

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@interface MainVC : UITabBarController<UITabBarControllerDelegate>@end- (void)viewDidLoad{    [super viewDidLoad];        if (SystemVersion > 6.0)        [UITextField appearance].tintColor = [UIColor grayColor];                [[UITabBar appearance] setTintColor:kBtnNomalColor];        //初始化控制器    PatientMainVC * patientVC = [[PatientMainVC alloc]init];    MessageListVC * messageListVC = [[MessageListVC alloc]init];    ToolVC * toolVC = [[ToolVC alloc]init];    //    PersonalVC * personalVC = [[PersonalVC alloc]init];        PersonalPageVC * personalVC = [[PersonalPageVC alloc]init];            NSArray * ctrArray = [[NSArray alloc]initWithObjects:patientVC,messageListVC,toolVC,personalVC, nil];    self.viewControllers = ctrArray;    self.selectedViewController = patientVC;            self.tabBar.layer.borderWidth = 0.5;    self.tabBar.layer.borderColor = kNavBottomColor.CGColor;    self.tabBar.layer.backgroundColor = kNavColr.CGColor;    [self.tabBar setClipsToBounds:YES];    [self.tabBar setTintColor:kNavColr];    //    [self.tabBar setBackgroundColor:[UIColor purpleColor]];            //初始化tabBar    UITabBar *tabBar = self.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];        aTabBarItem.title = @"病人";    bTabBarItem.title = @"消息";    cTabBarItem.title = @"工具";    dTabBarItem.title = @"我";            [aTabBarItem setFinishedSelectedImage:[UIImage imageNamed:@"patient_selected"] withFinishedUnselectedImage:[UIImage imageNamed:@"patient_default"]];    [bTabBarItem setFinishedSelectedImage:[UIImage imageNamed:@"message_selected"] withFinishedUnselectedImage:[UIImage imageNamed:@"message_default"]];    [cTabBarItem setFinishedSelectedImage:[UIImage imageNamed:@"tool_selected"] withFinishedUnselectedImage:[UIImage imageNamed:@"tool_default"]];    [dTabBarItem setFinishedSelectedImage:[UIImage imageNamed:@"mine_selected"] withFinishedUnselectedImage:[UIImage imageNamed:@"mine_default"]];        //    UIImage* tabBarBackground = [UIImage imageNamed:@"tabbarbg.png"];    //    [[UITabBar appearance] setBackgroundImage:[tabBarBackground resizableImageWithCapInsets:UIEdgeInsetsZero]];    //    [[UITabBar appearance] setSelectionIndicatorImage:[UIImage imageNamed:@"tabbar_selected.png"]];        [[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:                                                       [UIColor grayColor], UITextAttributeTextColor,nil] forState:UIControlStateNormal];        [[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:                                                       kBtnNomalColor, UITextAttributeTextColor,nil] forState:UIControlStateSelected];}
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