![]() ![]() We initialize TabController in the initState method of the _PortfolioPageState class. The AnimationController is created when we create a TabController and serves for animation between our tabs. ![]() TickerProviderĪs the name suggests, TickerProvider provides a Ticker, which simply means that it returns a callback to our application about frame updates, means a screen redraw information, so that an AnimationController can generate a new value and redraw the animated widget. We insert our class ( this) into vsync argument, because it provides TickerProvider with SingleTickerProviderStateMixin. That’s why we use SingleTickerProviderStateMixin. And the second is vsync, which represents a TickerProvider. The first is length, which represents the number of tabs. The TabController constructor has 2 required arguments. To be able to manipulate with the TabBar and TabBarView widgets, we need a TabController. In this case, we use SingleTickerProviderStateMixin for the _PortfolioPageState class. I have a TabBarView in my main. When we inherit from another class we use the extends command. In simple words, we just use the functions of another special class without directly inheriting from it. And now if we wanted to inherit further features from another class without that class being the ancestor of our class, we could use Mixin. Custom Tab Bars : Browse through a list of beautifully designed Flutter UI templates to kickstart your development. In our case we have the _PortfolioPageState class that inherits from the State class. Mixins allow us to add a group of “functions” to a class without using the parent-child hierarchy, allowing us to have one parent and multiple Mixin components in the same class. This will be our starting file for this tutorial. Finally, we’ll learn how to use TabBar instead of combining BottomNavigationBar with a PageView component.įirst we open our existing application from the previous tutorial and we open the portfolio_page.dart file.We will use components such as TabBar and TabBarView in combination with Slivers.In the Portfolio screen we will create 2 tabs to switch between the two subpages of the portfolio – Portfolio Tutorials and Portfolio Gallery A powerful official extension library of Tab/TabBar/TabView, which support to scroll ancestor or child Tabs when current is overscroll.Welcome to Himdeve development, where we are preparing the best tutorials to make your mobile app development easier and more efficient. ![]()
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