【iOS基础控件 15 - 2 】 UITabBarController 控制器管理

 1 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
 2     // Override point for customization after application launch.
 3    
 4     // 设置window
 5     self.window = [[UIWindow alloc] init];
 6     self.window.frame = [[UIScreen mainScreen] bounds];
 7     self.window.backgroundColor = [UIColor grayColor];
 8     [self.window makeKeyAndVisible];
 9    
10    
11     // 设置一个UITabBarController
12     UITabBarController *tabBarController = [[UITabBarController alloc] init];
13     self.window.rootViewController = tabBarController;
14    
15     // 添加子控制器
16     UIViewController *c1 = [[UIViewController alloc] init];
17     c1.view.backgroundColor = [UIColor redColor];
18 //    [tabBarController addChildViewController:c1];
19    
20     UIViewController *c2 = [[UIViewController alloc] init];
21     c2.view.backgroundColor = [UIColor blueColor];
22 //    [tabBarController addChildViewController:c2];
23    
24     UIViewController *c3 = [[UIViewController alloc] init];
25     c3.view.backgroundColor = [UIColor greenColor];
26    
27     tabBarController.viewControllers = @[c1,c2,c3];
28    
29    
30     return YES;
31 }

 1 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
 2     // Override point for customization after application launch.
 3    
 4     // 设置window
 5     self.window = [[UIWindow alloc] init];
 6     self.window.frame = [[UIScreen mainScreen] bounds];
 7     self.window.backgroundColor = [UIColor grayColor];
 8     [self.window makeKeyAndVisible];
 9    
10    
11     // 设置一个UITabBarController
12     UITabBarController *tabBarController = [[UITabBarController alloc] init];
13     self.window.rootViewController = tabBarController;
14    
15     // 添加子控制器
16     UIViewController *c1 = [[UIViewController alloc] init];
17     c1.view.backgroundColor = [UIColor redColor];
18     c1.tabBarItem.title = @"红色";
19 //    [tabBarController addChildViewController:c1];
20    
21     UIViewController *c2 = [[UIViewController alloc] init];
22     c2.view.backgroundColor = [UIColor blueColor];
23     c2.tabBarItem.title = @"蓝色";
24 //    [tabBarController addChildViewController:c2];
25    
26     UIViewController *c3 = [[UIViewController alloc] init];
27     c3.view.backgroundColor = [UIColor greenColor];
28     c3.tabBarItem.title = @"绿色";
29    
30     tabBarController.viewControllers = @[c1,c2,c3];
31    
32    
33     return YES;
34 }

 1 - (void)viewDidLoad {
 2     [super viewDidLoad];
 3     NSLog(@"%@ - viewDidLoad", self.class);
 4 }
 5 
 6 - (void)viewWillAppear:(BOOL)animated {
 7     [super viewWillAppear:animated];
 8     NSLog(@"%@ - viewWillAppear", self.class);
 9 }
10 
11 - (void)viewDidAppear:(BOOL)animated {
12     [super viewDidAppear:animated];
13     NSLog(@"%@ - viewDidAppear", self.class);
14 }
15 
16 - (void) viewWillDisappear:(BOOL)animated {
17     [super viewWillDisappear:animated];
18     NSLog(@"%@ - viewWillDisappear", self.class);
19 }
20 
21 - (void)viewDidDisappear:(BOOL)animated {
22     [super viewDidDisappear:animated];
23     NSLog(@"%@ - viewDidDisappear", self.class);
24 }
25 
26 
27 - (void)didReceiveMemoryWarning {
28     [super didReceiveMemoryWarning];
29     NSLog(@"%@ - didReceiveMemoryWarning", self.class);
30 }
31 
32 - (void)viewWillUnload {
33     [super viewWillUnload];
34     NSLog(@"%@ - viewWillUnload", self.class);
35 }
36 
37 - (void)viewDidUnload {
38     [super viewDidUnload];
39     NSLog(@"%@ - viewDidUnload", self.class);
40 }