ios - 单击相应的 UIButton 后如何转到 UITabBarController

Question

如何点击登录按钮进入首页

- (IBAction)loginClick:(id)sender {
    HomeVC *secondView = [self.storyboard instantiateViewControllerWithIdentifier:@"home"];
    [self.navigationController pushViewController:secondView animated:YES];
    self.tabBarController.selectedIndex = 1;
}

Answer 1

首先，您必须将登录页面设置为根 Controller ，当您成功登录后，您必须更改根 Controller 并将选项卡栏设置为根 Controller 。 在您的 AppDelegate 中执行此代码，并在您的登录和注销页面上调用这些方法。

@property (strong, nonatomic) UIWindow *window;
@property(nonatomic,readonly) UITabBar *tabBar;
@property(nonatomic,strong) UITabBarController *tabBarController;


- (void)Login{

  [self.window setRootViewController:nil];
   UIStoryboard *MainStoryboard = [UIStoryboard storyboardWithName:@"Main_iPhone"                                                             bundle: nil];
   UITabBarController *bar= (UITabBarController*)[MainStoryboard instantiateViewControllerWithIdentifier:@"tabbar"];
   self.window.rootViewController=bar;

}

 -(void)Logout
  {
   // self.window.rootViewController = nil;
    UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:@"Main_iPhone" bundle:nil];
    UINavigationController*vc = [mainStoryboard instantiateViewControllerWithIdentifier:@"homepage"];
   // Homepage *controller = [[Homepage alloc] initWithDelegate:self];
    self.window.rootViewController = vc;
  }