JavaFX - 布局窗格 TextFlow



如果我们使用此布局,则可以在单个流中设置多个文本节点。名为textFlowjavafx.scene.layout包中的类表示文本流。

此类提供两个属性,它们是:

  • lineSpacing - 此属性为双精度类型,用于定义文本对象之间的空间。可以使用名为setLineSpacing()的方法设置此属性。

  • textAlignment - 此属性表示窗格中文本对象的对齐方式。可以使用setTextAlignment()方法为此属性设置值。在此方法中,您可以传递四个值:CENTER、JUSTIFY、LEFT、RIGHT。

示例

以下程序是文本流布局的示例。在此,我们创建了三个字体为 15 且颜色不同的文本对象。然后,我们将它们添加到 TextFlow 窗格中,对齐方式为 Justify,行间距为 15

将此代码保存在名为TextFlowExample.java的文件中。

import javafx.application.Application; 
import javafx.collections.ObservableList; 
import javafx.scene.Scene; 
import javafx.scene.paint.Color; 
import javafx.scene.text.Font; 
import javafx.scene.text.Text; 
import javafx.scene.text.TextAlignment; 
import javafx.scene.text.TextFlow; 
import javafx.stage.Stage; 
         
public class TextFlowExample extends Application { 
   @Override 
   public void start(Stage stage) {                     
      //Creating text objects  
      Text text1 = new Text("Welcome to Tutorialspoint "); 
      
      //Setting font to the text 
      text1.setFont(new Font(15)); 
      
      //Setting color to the text  
      text1.setFill(Color.DARKSLATEBLUE); 
       
      Text text2 = new Text("We provide free tutorials for readers in 
      various technologies  "); 
      
      //Setting font to the text 
      text2.setFont(new Font(15)); 
      
      //Setting color to the text 
      text2.setFill(Color.DARKGOLDENROD); 
      Text text3 = new Text("\n Recently we started free video tutorials too "); 
      
      //Setting font to the text 
      text3.setFont(new Font(15)); 
      
      //Setting color to the text 
      text3.setFill(Color.DARKGRAY); 
       
      Text text4 = new Text("We believe in easy learning"); 
      
      //Setting font to the text 
      text4.setFont(new Font(15)); 
      text4.setFill(Color.MEDIUMVIOLETRED); 
       
      //Creating the text flow plane 
      TextFlow textFlowPane = new TextFlow(); 
       
      //Setting the line spacing between the text objects 
      textFlowPane.setTextAlignment(TextAlignment.JUSTIFY); 
       
      //Setting the width  
      textFlowPane.setPrefSize(600, 300); 
       
      //Setting the line spacing  
      textFlowPane.setLineSpacing(5.0); 
       
      //Retrieving the observable list of the TextFlow Pane 
      ObservableList list = textFlowPane.getChildren(); 
      
      //Adding cylinder to the pane  
      list.addAll(text1, text2, text3, text4);        
         
      //Creating a scene object 
      Scene scene = new Scene(textFlowPane);  
      
      //Setting title to the Stage 
      stage.setTitle("text Flow Pane Example");
      
      //Adding scene to the stage 
      stage.setScene(scene); 
         
      //Displaying the contents of the stage 
      stage.show();         
   } 
   public static void main(String args[]){ 
      launch(args); 
   } 
}

使用以下命令从命令提示符编译并执行保存的 java 文件。

javac TextFlowExample.java 
java TextflowExample

执行上述程序后,将生成如下所示的 JavaFX 窗口。

TextFlow
javafx_layout_panes.htm
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