java - Prevent Button from firing when enter or space is pressed Javafx

Question

I have a button on a Scene, that whenever the space bar or enter key is pressed, this button automatically fires. I want the user to be able to type these keys without this button firing. I have already tried doing root.requestFocus() and calling the request focus method on other nodes in my scene. How can I prevent this button from firing when these keys are pressed. Thanks for any help.

Edit: So far I have just done the boiler plate code to make a Javafx application work, added that button and a few labels. I have tried the requestFocus() method in several nodes in my application, none of which has made a difference. I also have a scene.setOnKeyPressed action event listener for keys pressed.

Answer 1

您可以使用该button.setFocusTraversable()方法（docs）。这可以防止按钮自动聚焦，例如通过按TAB。

Button button = new Button("Some Action");
button.setFocusTraversable(false);
button.setOnAction(event -> System.out.println("Some action called!"));

Answer 2

您是否尝试过添加一个事件过滤器来javafx.scene.input.KeyEvent消耗该事件？

Answer 3

假设您defaultFocusNode有焦点，并且您不希望您在单击时button执行其默认行为，即为自己（和远离defaultFocusNode）焦点button。当button获得焦点时，此代码将立即将焦点返回给defaultFocusNode.

button.focusedProperty().addListener((observableValue, oldValue, newValue) -> {
        if (newValue)  defaultFocusNode.requestFocus();
      });