"How to Create Bottom Navigation"胶子(创建按钮)的问题

Question

我正试图在我的Gloon Mobile应用程序中添加底部导航，所以我四处寻找，发现了这个：如何创建底部导航。我试图在代码中实现这一点，但没有成功，所以我将其转移到一个空的单视图项目中。在那里，我能够识别特定的错误后一些故障排除和导入包。它是如下(周围有两个星号的代码是产生错误的代码，下面是错误(：

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

每条线的错误：找不到符号symbol：方法createButton(String，Node，(e(->showV[…]ew2〃(位置：底部导航类型的可变底部导航

这是整个代码：

package com.myfirstapplication;
import com.gluonhq.charm.glisten.application.MobileApplication;
import com.gluonhq.charm.glisten.control.AppBar;
import com.gluonhq.charm.glisten.control.BottomNavigation;
import com.gluonhq.charm.glisten.mvc.View;
import com.gluonhq.charm.glisten.visual.MaterialDesignIcon;
import com.gluonhq.charm.glisten.visual.Swatch;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.ToggleButton;
import javafx.scene.image.Image;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
public class MyFirstApplication 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();
BottomNavigationButton btn1 = bottomNavigation.createButton("View1", MaterialDesignIcon.DASHBOARD.graphic(), e -> showView("view1"));
BottomNavigationButton btn2 = bottomNavigation.createButton("View2", MaterialDesignIcon.AC_UNIT.graphic(), e -> showView("view2"));
BottomNavigationButton 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);
}
}

Answer 1

您应该始终首先查看JavaDoc。请查看CreateButton方法的文档。此方法已被弃用，随后被删除。折旧消息准确地描述了您必须使用的内容。

只是重申一下，在查看文档之前，不要开始在互联网上搜索答案。好的起点是https://docs.gluonhq.com/最新的JavaDoc for Glisten框架(移动UI(位于https://docs.gluonhq.com/charm/javadoc/6.0.6/com.gluonhq.charm.glisten/module-summary.html