UI基础 UITabBarController

app.m

#import "AppDelegate.h"
#import "TmailViewController.h"
#import "TaoBaoViewController.h"
@interface AppDelegate ()

@end

@implementation AppDelegate


- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    // Override point for customization after application launch.
    self.window.backgroundColor = [UIColor whiteColor];
    [self.window makeKeyAndVisible];
    
    //淘宝页面
    TaoBaoViewController *taobao =[[TaoBaoViewController alloc] init];
    
    UINavigationController *taoNav=[[UINavigationController alloc] initWithRootViewController:taobao];
    
    
    //设置标题
    taoNav.tabBarItem.title=@"淘宝";
    //设置未选中的图片
    taoNav.tabBarItem.image=[UIImage imageNamed:@"taobao"];
    
    //设置选中时的图片
    taoNav.tabBarItem.selectedImage=[UIImage imageNamed:@"taobao"];
    
    
    
    //天猫页面
    TmailViewController *tmall =[[TmailViewController alloc] init];
    
    UINavigationController *tmallNav=[[UINavigationController alloc]initWithRootViewController:tmall];
    
    
    
    //设置标题
    tmallNav.tabBarItem.title=@"天猫";
    //设置未选中的图片
    tmallNav.tabBarItem.image=[UIImage imageNamed:@"tianmao"];
    //设置选中时的图片
    tmallNav.tabBarItem.selectedImage=[UIImage imageNamed:@"tianmao"];
    
    //统一设置导航栏的格式
    [[UINavigationBar appearance] setBarTintColor:[UIColor greenColor]];
    [[UINavigationBar appearance] setTranslucent:NO];
    
    
    
    
    UITabBarController *tabbarC =[[UITabBarController alloc]init];
    // 将页面放在tabbarcontroller 中
    tabbarC.viewControllers= [NSArray arrayWithObjects:taoNav,tmallNav,nil];
    //把tabbarcontroller 作为window的根视图
    self.window.rootViewController =tabbarC;
  
    
    return YES;
}

taobao.m

#import "TaoBaoViewController.h"

@interface TaoBaoViewController ()

@end

@implementation TaoBaoViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    self.view.backgroundColor=[UIColor blueColor];
    
    self.navigationItem.title=@"淘宝";

}



@end

tmail.m

#import "TmailViewController.h"

@interface TmailViewController ()

@end

@implementation TmailViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    self.view.backgroundColor=[UIColor yellowColor];
    self.navigationItem.title=@"天猫";

}


@end