我们使用 Storyboard在 Obj C 代码中创建了一个 UITabBarController。它工作正常,但是导航栏不会显示在任何 View 上。尝试过在 TabBarController 中创建导航栏和其他一些东西。大多数示例不显示导航栏...任何具体的代码示例将不胜感激,谢谢!这是 VDL 代码:
- (void)viewDidLoad {
[super viewDidLoad];
UITabBarItem * startTab = [[UITabBarItem alloc]initWithTitle:@"Home" image:[UIImage imageNamed:@"HomeTab.png"] tag:0];
UITabBarItem * helpTab = [[UITabBarItem alloc]initWithTitle:@"Help" image:[UIImage imageNamed:@"InfoDarkTab.png"] tag:1];
UIStoryboard * phone = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle: nil];
StartListTVC *startVC = [phone instantiateViewControllerWithIdentifier:@"StartList"];
HelpWebVC * helpVC = [phone instantiateViewControllerWithIdentifier:@"HelpWeb"];
startVC.tabBarItem = startTab;
helpVC.tabBarItem = helpTab;
NSArray *myViewControllers = [[NSArray alloc] initWithObjects:
startVC,
helpVC, nil];
[self setViewControllers:myViewControllers];
[self.navigationController setNavigationBarHidden:NO animated:NO];
}
最佳答案
您应该将 View Controller 嵌入到 UINavigationController 中,而不是 UITabBarController。
- (void)viewDidLoad {
[super viewDidLoad];
UITabBarItem * startTab = [[UITabBarItem alloc]initWithTitle:@"Home" image:[UIImage imageNamed:@"HomeTab.png"] tag:0];
UITabBarItem * helpTab = [[UITabBarItem alloc]initWithTitle:@"Help" image:[UIImage imageNamed:@"InfoDarkTab.png"] tag:1];
UIStoryboard * phone = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle: nil];
StartListTVC *startVC = [phone instantiateViewControllerWithIdentifier:@"StartList"];
HelpWebVC * helpVC = [phone instantiateViewControllerWithIdentifier:@"HelpWeb"];
UINavigationController *startNavVC = [[UINavigationController alloc] initWithRootViewController: startVC];
UINavigationController *helpNavVC = [[UINavigationController alloc] initWithRootViewController: helpVC];
startNavVC.tabBarItem = startTab;
helpNavVC.tabBarItem = helpTab;
NSArray *myViewControllers = [[NSArray alloc] initWithObjects:
startNavVC,
helpNavVC];
[self setViewControllers:myViewControllers];
}
关于ios - 代码中的 UITabBarController 不显示导航栏,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/58259947/