“如何创建底部导航”胶子（createButton）的问题

Question

我正在尝试向我的 Gluon Mobile 应用程序添加底部导航，所以我环顾四周，发现了这个：How to create Bottom Navigation。我试图在我的代码中实现这一点，但它不起作用，所以我将它转移到一个空的单视图项目中。在那里，我能够在对包进行一些故障排除和导入后识别出具体的错误。如下（带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"));

每一行的错误： 找不到标志 符号：方法 createButton(String,Node,(e)->showV[...]ew2")) 位置：BottomNavigation类型的变量bottomNavigation

这是完整的代码：

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。查看CreateButton method 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东西。

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