有没有办法在javafx中取消焦点？ [英] Is there a way to take away focus in javafx?

问题描述

我知道您可以通过执行 node.requestFocus（）; 来关注javafx中的节点，但是有没有办法从javafx中的节点中取消焦点或防止焦点对象解决方案我不认为有任何保证，这将始终工作，但你可以尝试把重点放在一个固有的东西不接受键盘输入（例如布局窗格）：

  import javafx.application.Application; 
导入javafx.scene.Scene; 
 import javafx.scene.control.TextField; 
 import javafx.scene.layout.VBox; 
 import javafx.stage.Stage; 
 
 public class NoFocusTest extends Application {
 
 @Override 
 public void start（Stage primaryStage）{
 TextField tf1 = new TextField（）; 
 tf1.setPromptText（Enter something）; 
 TextField tf2 = new TextField（）; 
 tf2.setPromptText（Enter something else）; 
 VBox root = new VBox（5，tf1，tf2）; 
 primaryStage.setScene（new Scene（root，250，150））; 
 primaryStage.show（）; 
 root.requestFocus（）; 
} 
} 
  

I know that your can give focus to a node in javafx by doing node.requestFocus(); but is there a way to take away focus from a node in javafx or prevent focus on an object?

解决方案

I don't think there's any guarantee this will always work, but you can try setting focus to something that inherently doesn't accept keyboard input (such as a layout pane):

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.TextField;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class NoFocusTest extends Application {

    @Override
    public void start(Stage primaryStage) {
        TextField tf1 = new TextField();
        tf1.setPromptText("Enter something");
        TextField tf2 = new TextField();
        tf2.setPromptText("Enter something else");
        VBox root = new VBox(5, tf1, tf2);
        primaryStage.setScene(new Scene(root, 250, 150));
        primaryStage.show();
        root.requestFocus();
    }
}

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