iOS开发UI篇—UITabBarController简单介绍

 1 #import "TXAppDelegate.h"
 2 
 3 @implementation TXAppDelegate
 4 
 5 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
 6 {
 7     self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
 8     // Override point for customization after application launch.
 9     self.window.backgroundColor = [UIColor whiteColor];
10     
11     // 1.创建tabbar控制器
12     UITabBarController *tabbarVc = [[UITabBarController alloc] init];
13     
14     // 2.设置为window的根控制器
15     self.window.rootViewController = tabbarVc;
16     
17     // 3.添加子控制器
18     UIViewController *vc1 = [[UIViewController alloc] init];
19     vc1.view.backgroundColor = [UIColor redColor];
20     vc1.tabBarItem.title = @"联系人";
21     vc1.tabBarItem.image = [UIImage imageNamed:@"tab_buddy_nor"];
22 //    [tabbarVc addChildViewController:vc1];
23     
24     UIViewController *vc2 = [[UIViewController alloc] init];
25     vc2.view.backgroundColor = [UIColor blueColor];
26     vc2.tabBarItem.title = @"动态";
27     vc2.tabBarItem.image = [UIImage imageNamed:@"tab_qworld_nor"];
28 //    [tabbarVc addChildViewController:vc2];
29     
30     UIViewController *vc3 = [[UIViewController alloc] init];
31     vc3.view.backgroundColor = [UIColor greenColor];
32     vc3.tabBarItem.title = @"设置";
33     vc3.tabBarItem.image = [UIImage imageNamed:@"tab_me_nor"];
34 //    [tabbarVc addChildViewController:vc3];
35     
36     tabbarVc.viewControllers = @[vc1, vc2, vc3];
37     
38     [self.window makeKeyAndVisible];
39     return YES;
40 }