Select Tab bar controller in the MainWindow component window.
在MainWindow组件窗口中选择Tab bar controller。
It provides a user interface configured with a TAB bar controller, and view controllers for the TAB bar items.
它提供了一个标签栏控制器和视图控制器，用来配置用户界面和查看标签。
The Tab bar Application template provides a special controller that displays a bottom navigation bar.
Tab BarApplication模板提供了一个特殊控制器，它会在底部显示一个导航条。
The navigation bar and the TAB bar, and all their associated presentation behavior, are managed and implemented by view controller objects.
导览列和分页列，以及所有相关的呈现行为，都被视图控制物件管理和实现。
The navigation bar and the TAB bar, and all their associated presentation behavior, are managed and implemented by view controller objects.
导览列和分页列，以及所有相关的呈现行为，都被视图控制物件管理和实现。
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