禁用JavaFX的Alt + F4 [英] Disable Alt + F4 for JavaFX

问题描述

我需要使用 Alt + F4 键盘快捷键禁用关闭事件。现在，我正在尝试过滤我的场景中的事件以获得此按键并使用它，但没有任何成功，无论如何都会发生关闭事件。以下是我的部分代码：

I need to disable the close event using Alt + F4 keyboard shortcut. For now, I'm trying to filter the events in my Scene for this keypress and consume it, but didn't have any success, the close event happens anyway. Follows bellow part of my code:

scene.addEventFilter(KeyEvent.KEY_PRESSED, event -> {
    if (event.isAltDown() && event.getCode().equals(KeyCode.F4)) {
        event.consume();
    }
});

primaryStage.setOnCloseRequest((ev) -> System.exit(0));

推荐答案

您可以尝试禁用隐式退出：

You can try to disable the implicit exit:

Platform.setImplicitExit(false);
primaryStage.setOnCloseRequest(new EventHandler<WindowEvent>() {
    @Override
    public void handle(WindowEvent event) {
        event.consume();
    }
});

然后创建一个按钮，在点击时关闭应用程序：

and then create a button which will close the app on click:

Button btn = new Button();
btn.setText("Close");
btn.setOnAction(new EventHandler<ActionEvent>() {

    @Override
    public void handle(ActionEvent event) {
       System.exit(0);
    }
});

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