Day.03.08 UITabBarController 标签栏属性方法

appDelegate.m

#import "AppDelegate.h"

#import "ViewController.h"

@interface AppDelegate ()

@end

@implementation AppDelegate


- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

    self.window = [[UIWindow alloc]initWithFrame:[UIScreen mainScreen].bounds];
    
    self.window.backgroundColor = [UIColor whiteColor];
    
    [self.window makeKeyAndVisible];
    
    
    /*——————————————————————————————————————————————————————————————————————————————-*/
    
    ViewController *vc1 = [[ViewController alloc]init];
    
    vc1.view.backgroundColor = [UIColor whiteColor];
    
    vc1.title = @"第一页";
    
    ViewController *vc2 = [[ViewController alloc]init];
    
    vc2.view.backgroundColor = [UIColor whiteColor];
    
    vc2.title = @"第二页";
    
    ViewController *vc3 = [[ViewController alloc]init];
    
    vc3.view.backgroundColor = [UIColor whiteColor];
    
    vc3.title = @"第三页";
    
    UIViewController *vc4 = [[UIViewController alloc]init];
    
    UIViewController *vc5 = [[UIViewController alloc]init];
    
    UIViewController *vc6 = [[UIViewController alloc]init];
    
    UIViewController *vc7 = [[UIViewController alloc]init];
    
    vc4.title = @"4";
    vc5.title = @"5";
    vc6.title = @"6";
    vc7.title = @"7";
    
    
    //创建标签控制器
    UITabBarController *tbc = [[UITabBarController alloc]init];
    
    self.window.rootViewController = tbc;
    
    /*———————————————属性———————————————————————————————————————————————————————————————-*/
    //1.设置子控制器数组
    tbc.viewControllers = @[vc1,vc2,vc3,vc4,vc5,vc6,vc7];
    
        //标签栏属性
    tbc.tabBar.barTintColor = [UIColor grayColor];
    
        //背景颜色  半透明
    tbc.tabBar.backgroundColor = [UIColor blueColor];
    
        //背景图片 可以设置拉伸
    tbc.tabBar.backgroundImage = [UIImage imageNamed:@"navbar_bg_normal"]; //上面两项看不见
    
        //选中项的颜色
    tbc.tabBar.tintColor = [UIColor redColor];
    
        //选中项的背景图片
    tbc.tabBar.selectionIndicatorImage = [UIImage imageNamed:@"选中"];
    
    /*——————————————————————————————————————————————————————————————————————————————-*/
    
    vc1.tabBarItem = [[UITabBarItem alloc]initWithTitle:@"d" image:[UIImage imageNamed:@"tab_buddy_nor"]tag:101];
    
    //item的提示信息
    vc1.tabBarItem.badgeValue = @"1";
    
    //设置选中的控制器
    tbc.selectedIndex = 1;

    return YES;
}

@end

ViewController.m

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidAppear:(BOOL)animated{

    [super viewDidAppear:animated];
    
    NSLog(@"%@",self.tabBarController);
    
    self.tabBarController.delegate =self;
}



- (void)viewDidLoad {
    [super viewDidLoad];
    
    NSLog(@"%@",self.tabBarController);
    
}

#pragma mark -- UITabBarDelegate
//即将选中标签栏上的某个item时调用
- (BOOL)tabBarController:(UITabBarController *)tabBarController shouldSelectViewController:(UIViewController *)viewController NS_AVAILABLE_IOS(3_0){
    
    return YES;
}


//✅选中标签栏上的某个item时调用
- (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController{
    
    //    NSLog(@"%@",viewController);
    
    NSInteger index = [tabBarController.viewControllers indexOfObject:viewController];
    
    NSLog(@"%ld",index);
    
}




//自定义更改子视图数组时
- (void)tabBarController:(UITabBarController *)tabBarController willBeginCustomizingViewControllers:(NSArray<__kindof UIViewController *> *)viewControllers NS_AVAILABLE_IOS(3_0) __TVOS_PROHIBITED{
    
    NSLog(@"will begin custom");
    
}
- (void)tabBarController:(UITabBarController *)tabBarController willEndCustomizingViewControllers:(NSArray<__kindof UIViewController *> *)viewControllers changed:(BOOL)changed NS_AVAILABLE_IOS(3_0) __TVOS_PROHIBITED{
    
    NSLog(@"will end custom");
    
}
- (void)tabBarController:(UITabBarController *)tabBarController didEndCustomizingViewControllers:(NSArray<__kindof UIViewController *> *)viewControllers changed:(BOOL)changed __TVOS_PROHIBITED{
    
    NSLog(@"did end custom");
    
    
}




@end

屏幕快照 2016-03-08 上午11.47.22.png

屏幕快照 2016-03-08 上午11.47.34.png

屏幕快照 2016-03-08 上午11.48.16.png