java JavaFX |工具栏类

JavaFX |工具栏类

原文:https://www.geeksforgeeks.org/javafx-toolbar-class/

ToolBar 类是 JavaFX 的一部分。工具栏是垂直或水平显示项目的控件。按钮、切换按钮和分隔符通常放在工具栏中。您也可以在其中插入任何节点。如果工具栏中容纳的项目太多，允许选择工具栏中当前不可见的项目，将出现溢出按钮。ToolBar 将 focusTraversable 设置为 false。

该类的构造函数:

工具栏():创建一个空工具栏。
工具栏(节点… n) :创建填充了指定节点的工具栏。

常用方法:

方法	说明
getItems（）	返回工具栏的项目。
getOrientation()	返回工具栏的方向。
设置方向(方向五)	设置对象方向的值。

下面程序举例说明 ToolBar 类的使用:

Java program to create a toolbar and add it to the scene: In this program we will create a Toolbar named toolbar. We will also create a Label named label and two Buttons named button1 and button2 and add them to the toolbar. Add the toolbar to the VBox named vbox and add the VBox to the scene. Then add the scene to the stage and call the show() function to display the results.

```java // Java program to create a toolbar // and add it to the scene import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.; import javafx.scene.layout.; import javafx.stage.Stage; import javafx.event.ActionEvent; import javafx.event.EventHandler; import javafx.scene.Group;

public class Toolbar extends Application {

// launch the application     public void start(Stage stage)     {

try {

// set title for the stage             stage.setTitle("creating toolbar");

// create a label             Label label = new Label("Toolbar");

// creating buttons             Button button1 = new Button("Button1");             Button button2 = new Button("Button2");

// creating toolbar             ToolBar toolbar = new ToolBar(label, button1, button2);

// create a VBox             VBox vbox = new VBox(toolbar);

// create a scene             Scene scene = new Scene(vbox, 300, 300);

// set the scene             stage.setScene(scene);

stage.show();         }

catch (Exception e) {

System.out.println(e.getMessage());         }     }

// Main Method     public static void main(String args[])     {

// launch the application         launch(args);     } } ```

输出:
Java program to create a toolbar and add it to the scene and set the orientation of the toolbar: In this program we will create a Toolbar named toolbar. We will also create a Label named label and two Buttons named button1 and button2 and add them to the toolbar by using the getItems().add() function. Set the orientation of the toolbar using the setOrientation() function. Now add the toolbar to the HBox named hbox and add the HBox to the scene. Finally add the scene to the stage and call the show() function to display the results.

```java // Java program to create a toolbar and // add it to the scene and set orientation // of the toolbar import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.; import javafx.scene.layout.; import javafx.stage.Stage; import javafx.event.ActionEvent; import javafx.event.EventHandler; import javafx.scene.Group; import javafx.geometry.*;

public class Toolbar_1 extends Application {

// launch the application     public void start(Stage stage)     {

try {

// set title for the stage             stage.setTitle("creating toolbar");

// create a label             Label label = new Label("Toolbar");

// creating buttons             Button button1 = new Button("Button1");             Button button2 = new Button("Button2");

// creating toolbar             ToolBar toolbar = new ToolBar();

// add items             toolbar.getItems().add(label);             toolbar.getItems().add(button1);             toolbar.getItems().add(button2);

// set orientation of the toolbar             toolbar.setOrientation(Orientation.VERTICAL);

// create a HBox             HBox hbox = new HBox(toolbar);

// create a scene             Scene scene = new Scene(hbox, 300, 300);

// set the scene             stage.setScene(scene);

stage.show();         }

catch (Exception e) {

System.out.println(e.getMessage());         }     }

// Main Method     public static void main(String args[])     {

// launch the application         launch(args);     } } ```

输出: