tabbar

问题 I need to detect TabBar when I swipe then print somethings on console, how I can do that? This is my code. bottomNavigationBar: new Material( color: Colors.blueAccent, child: new TabBar( onTap: (int index){ setState(() { _onTap(index); });}, indicatorColor: Colors.white, controller: controller, tabs: <Widget>[ new Tab(icon: new Icon(Icons.shopping_basket)), new Tab(icon: new Icon(Icons.store)), new Tab(icon: new Icon(Icons.local_offer)), new Tab(icon: new Icon(Icons.assignment)), new Tab(icon

问题 I have a page with 2 tabs in the TabBar, as it follows: class SearchByCityOrPerson extends StatefulWidget { SearchByCityOrPerson({Key key, this.title}) : super(key: key); final String title; @override _SearchByCityOrPerson createState() => _SearchByCityOrPerson(); } class _SearchByCityOrPerson extends State<SearchByCityOrPerson> { List<String> _cities = ['Albania', 'Andorra', 'Armenia', 'Austria', 'Azerbaijan', 'Belarus', 'Belgium', 'Bosnia and Herzegovina', 'Bulgaria', 'Croatia', 'Cyprus',

问题 I have a page with 2 tabs in the TabBar, as it follows: class SearchByCityOrPerson extends StatefulWidget { SearchByCityOrPerson({Key key, this.title}) : super(key: key); final String title; @override _SearchByCityOrPerson createState() => _SearchByCityOrPerson(); } class _SearchByCityOrPerson extends State<SearchByCityOrPerson> { List<String> _cities = ['Albania', 'Andorra', 'Armenia', 'Austria', 'Azerbaijan', 'Belarus', 'Belgium', 'Bosnia and Herzegovina', 'Bulgaria', 'Croatia', 'Cyprus',

问题 After sucessful signin i am opening Tabbar with follwing code let mainView = UIStoryboard(name:"Main", bundle: nil) let tabbar = mainView.instantiateViewController(withIdentifier: "Tabbar") as? Tabbar tabbar?.modalPresentationStyle = .fullScreen self.present(tabbar!, animated: true, completion: nil) Its open Tabbar with first index selected but first ViewController also cover the save area ... and switching between the TabbarItems make it work fine ... I am not able to understand why this

问题 After sucessful signin i am opening Tabbar with follwing code let mainView = UIStoryboard(name:"Main", bundle: nil) let tabbar = mainView.instantiateViewController(withIdentifier: "Tabbar") as? Tabbar tabbar?.modalPresentationStyle = .fullScreen self.present(tabbar!, animated: true, completion: nil) Its open Tabbar with first index selected but first ViewController also cover the save area ... and switching between the TabbarItems make it work fine ... I am not able to understand why this

问题 In my tvOS app I have a TabBarController with 3 viewControllers. What I want to do is to automatically hide/change focus of the tabBar when I switch to the next viewController. I saw some posts here, on SO that suggested to change alfa on the tabBar, but I would like to have a slide up animation, same way as it does when you change focus to something in the viewController. Any kind of help is highly appreciated. 回答1: As Charles said.. Something like this in the derived UITabBarController: var

问题 I have the following method in the parantTabBarController class: There can be seen various attempts made to make the tabBar completely transparent. The only one that worked is the one found at the top. override func viewDidLoad() { super.viewDidLoad() UITabBar.appearance().barTintColor = UIColor.clear UITabBar.appearance().backgroundImage = UIImage() // UITabBar.appearance().barTintColor = UIColor.blue // changeTabBarOpacity() // self.tabBar.unselectedItemTintColor = UIColor(red: 17.0/255.0,

问题 I am having issue in tabBar title for iOS13 on compiling from Xcode 11.It works perfect whle compiling from Xcode 10.Please find the screenshot for the issue and below is the code for customising the tabBar. The code is self.tabBar.isTranslucent = true self.tabBar.tintColor = UIColor.white UITabBarItem.appearance().badgeColor = Constant.Colors.colorFF1744 if #available(iOS 13, *) { let appearance = UITabBarAppearance.init() appearance.stackedLayoutAppearance.normal.titleTextAttributes =

问题 I am having issue in tabBar title for iOS13 on compiling from Xcode 11.It works perfect whle compiling from Xcode 10.Please find the screenshot for the issue and below is the code for customising the tabBar. The code is self.tabBar.isTranslucent = true self.tabBar.tintColor = UIColor.white UITabBarItem.appearance().badgeColor = Constant.Colors.colorFF1744 if #available(iOS 13, *) { let appearance = UITabBarAppearance.init() appearance.stackedLayoutAppearance.normal.titleTextAttributes =

问题 I am having issue in tabBar title for iOS13 on compiling from Xcode 11.It works perfect whle compiling from Xcode 10.Please find the screenshot for the issue and below is the code for customising the tabBar. The code is self.tabBar.isTranslucent = true self.tabBar.tintColor = UIColor.white UITabBarItem.appearance().badgeColor = Constant.Colors.colorFF1744 if #available(iOS 13, *) { let appearance = UITabBarAppearance.init() appearance.stackedLayoutAppearance.normal.titleTextAttributes =