如何创建底部导航

Question

我是移动开发新手，我开始为Netbeans使用Gluon移动设备，我正在尝试在默认的Gluon移动应用程序中添加一个底部导航栏。他们描述了JavaDoc http://docs.gluonhq.com/charm/javadoc/4.1.0/com/gluonhq/charm/glisten/control/BottomNavigation.html中的类，但我似乎无法使其工作。 有人能够发布关于如何以及在哪里做这件事的片段？

Answer 1

下面是一个简单的例子：

public class GluonApplication extends MobileApplication { 

@Override 
public void init() { 

    addViewFactory(HOME_VIEW,() -> 
    { 

     StackPane root = new StackPane(); 
     root.getChildren().add(new Label("test")); 

     View view = new View(root) { 

      @Override 
      protected void updateAppBar(AppBar appBar) { 
       appBar.setTitleText("Home"); 
      } 

     }; 
     view.setBottom(createBottomNavigation()); 
     return view; 
    }); 

} 

private BottomNavigation createBottomNavigation() { 
    BottomNavigation bottomNavigation = new BottomNavigation(); 

    ToggleButton btn1 = bottomNavigation.createButton("View1", MaterialDesignIcon.DASHBOARD.graphic(), e -> showView("view1")); 
    ToggleButton btn2 = bottomNavigation.createButton("View2", MaterialDesignIcon.AC_UNIT.graphic(), e -> showView("view2")); 
    ToggleButton btn3 = bottomNavigation.createButton("View3", MaterialDesignIcon.MAP.graphic(), e -> showView("view3")); 

    bottomNavigation.getActionItems().addAll(btn1, btn2, btn3); 

    return bottomNavigation; 
} 

private void showView(String viewName) { 
    MobileApplication.getInstance().switchView(viewName); 
} 

}