iOS之导航栏的设置与UITabBarController的属性设置

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

    // Override point for customization after application launch.

    

    //创建window

    self.window = [[UIWindow alloc]initWithFrame:[[UIScreen mainScreen] bounds]];

    self.window.backgroundColor = [UIColor whiteColor];

    

    

    

    //初始化一个tabBar控制器

    UITabBarController * tb = [[UITabBarController alloc]init];

    //设置控制器为window的根控制器

    self.window.rootViewController = tb;

    

    //创建子控制器

    HomeViewController * hv = [[HomeViewController alloc]init];

    //创建导航栏，并将子控制器同步

    UINavigationController * nhv = [[UINavigationController alloc]initWithRootViewController:hv];

    //子控制器的背景颜色

    nhv.view.backgroundColor = [UIColor grayColor];

    //子控制器的tabBar的标题

    nhv.tabBarItem.title = @"首页";

    //子控制器的tabBar的图片

    nhv.tabBarItem.image = [UIImage imageNamed:@""];

//选中时的图片

    nhv.tabBarItem.selectedImage = [UIImage imageNamed:@"[email protected]"];

    //子控制器的tabBar的图片右上角的文字

    nhv.tabBarItem.badgeValue = @"11";

    

    

    DiscountViewController * dv = [[DiscountViewController alloc]init];

     UINavigationController * ndv = [[UINavigationController alloc]initWithRootViewController:dv];

    ndv.tabBarItem.title = @"优惠";

    ndv.view.backgroundColor = [UIColor greenColor];

    ndv.tabBarItem.image = [UIImage imageNamed:@""];

   

    

    CollectionViewController * cv = [[CollectionViewController alloc]init];

    UINavigationController * ncv = [[UINavigationController alloc]initWithRootViewController:cv];

    ncv.view.backgroundColor = [UIColor orangeColor];

    ncv.tabBarItem.title = @"收藏";

    ncv.tabBarItem.image = [UIImage imageNamed:@""];

    

    SignViewController * sv = [[SignViewController alloc]init];

    UINavigationController * nsv = [[UINavigationController alloc]initWithRootViewController:sv];

    nsv.view.backgroundColor = [UIColor redColor];

    nsv.tabBarItem.title = @"登录";

    nsv.tabBarItem.image = [UIImage imageNamed:@""];

    

    tb.tabBar.barTintColor = [UIColor whiteColor];//颜色

    //将所有的子控制器加到tabBar上，tabBar作为根控制器

    tb.viewControllers = @[nhv,ndv,ncv,nsv];

    

    

    return YES;

}

self.title = @"";//导航栏的标题

    self.navigationController.navigationBar.barTintColor = [UIColor orangeColor];//导航栏颜色

    UILabel * lab = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, 100, 40)];

    lab.text = @"";

    

    lab.font = [UIFont systemFontOfSize:25];

    

    lab.textAlignment = NSTextAlignmentCenter;

    

    lab.textColor = [UIColor whiteColor];

    

    self.navigationItem.titleView = lab;//自定义导航栏标题

    

    UIButton * searchBut = [UIButton buttonWithType:UIButtonTypeCustom];//自定因导航栏按钮

    

    searchBut.frame = CGRectMake(0, 0, 40, 40);

    

    [searchBut setTitle:@"搜索" forState:UIControlStateNormal];

    

    [searchBut addTarget:self action:@selector(search) forControlEvents:UIControlEventTouchUpInside];

    

    UIBarButtonItem * rigntBut = [[UIBarButtonItem alloc]initWithCustomView:searchBut];

    

    self.navigationItem.rightBarButtonItem = rigntBut;