先登录 在跳转到tabBar

Posted 2020-08-07 不忘初心，方得始终

 1 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
 2     // Override point for customization after application launch.
 3     self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
 4     self.window.backgroundColor = [UIColor whiteColor];
 5     [self.window makeKeyAndVisible];
 6 
 7     
 8     // 第二步：创建UITabBarController对象
 9     self.mainTab = [[UITabBarController alloc] init];
10     
11     // 第三步：设置window的根视图控制器
12     self.window.rootViewController = self.mainTab;
13     UINavigationController *loginVC = [[UINavigationController alloc] initWithRootViewController:[[LoginViewController alloc] init]];
14     loginVC.navigationBarHidden = YES;
15     [self.mainTab presentViewController:loginVC animated:NO completion:nil];
16 
17     // 控制器
18     UINavigationController *homeNVC = [[UINavigationController alloc] initWithRootViewController:[[HomeViewController alloc] init]];
19     // 设置图片
20     homeNVC.tabBarItem = [[UITabBarItem alloc] initWithTitle:@"首页" image:[[UIImage imageNamed:@"tb_08"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal] selectedImage:[[UIImage imageNamed:@"tb_09"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
21     
22     UINavigationController *classNVC = [[UINavigationController alloc] initWithRootViewController:[[ClassifyViewController alloc] init]];
23     // 设置图片
24     classNVC.tabBarItem = [[UITabBarItem alloc] initWithTitle:@"分类" image:[[UIImage imageNamed:@"tb_05"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal] selectedImage:[[UIImage imageNamed:@"tb_03"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
25     
26     UINavigationController *shoppingNVC = [[UINavigationController alloc] initWithRootViewController:[[ShoppingCarViewController alloc] init]];
27     // 设置图片
28     shoppingNVC.tabBarItem = [[UITabBarItem alloc] initWithTitle:@"购物车" image:[[UIImage imageNamed:@"tb_06"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal] selectedImage:[[UIImage imageNamed:@"tb_01"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
29     
30     UINavigationController *userNVC = [[UINavigationController alloc] initWithRootViewController:[[UserViewController alloc] init]];
31     // 设置图片
32     userNVC.tabBarItem = [[UITabBarItem alloc] initWithTitle:@"个人中心" image:[[UIImage imageNamed:@"tb_07"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal] selectedImage:[[UIImage imageNamed:@"tb_02"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
33     
34     // 将导航控制器对象添加到数组中
35     self.mainTab.viewControllers = @[homeNVC,classNVC,shoppingNVC,userNVC];
36     
37     return YES;
38 }