UITabbar

@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];
}