textField不对某些/所有“标准功能键”做出反应的原因是，它们的KEY_PRESSED类型永远不会到达它-它们被重定向到弹出窗口中的表，并且大多数/所有表都被表使用。

天真的第一近似方法是将表的focusTraversable属性设置为false：这有效地防止了将所有键传递给它。现实世界中的需求可能不太简单，因为其中一些需求应该到达表，而其他需求应该冒充到textField。

这可以通过自定义EventDispatcher（在表上）来实现，该事件检查器检查所有keyEvent并确定要传递/不传递给表的原始调度程序。一个代码片段，其中拦截器是用于决策的谓词（为方便起见，最后有完整的工作示例）：

private BasicEventDispatcher original;
private Predicate<Event> interceptor;

@Override
public Event dispatchEvent(Event event,EventDispatchChain tail) {
    if (!interceptor.test(event)) {
        event = original.dispatchCapturingEvent(event);
        if (event.isConsumed()) {
            return null;
        }
    }
    event = tail.dispatchEvent(event);
    if (event != null && !interceptor.test(event)) {
        event = original.dispatchBubblingEvent(event);
        if (event.isConsumed()) {
            return null;
        }
    }
    return event;
}

用法：如果是f.i.我们希望将LEFT和RIGT冒泡到该textField，而所有其他字段应由表正常处理

List<KeyCode> toIntercept = List.of(KeyCode.LEFT,KeyCode.RIGHT);
Predicate<Event> interceptor = e -> {
    if (e instanceof KeyEvent) {
        return toIntercept.contains(((KeyEvent) e).getCode());
    }
    return false;
};
table.setEventDispatcher(new InterceptingEventDispatcher(
        (BasicEventDispatcher) table.getEventDispatcher(),interceptor));

完整示例：

public class ViewPopupApplication extends Application {

    public static class InterceptingEventDispatcher implements EventDispatcher {
        private BasicEventDispatcher original;
        private Predicate<Event> interceptor;

        public InterceptingEventDispatcher(BasicEventDispatcher original,Predicate<Event> interceptor) {
            this.original = original;
            this.interceptor = interceptor;
        }

        @Override
        public Event dispatchEvent(Event event,EventDispatchChain tail) {
            if (!interceptor.test(event)) {
                event = original.dispatchCapturingEvent(event);
                if (event.isConsumed()) {
                    return null;
                }
            }
            event = tail.dispatchEvent(event);
            if (event != null && !interceptor.test(event)) {
                event = original.dispatchBubblingEvent(event);
                if (event.isConsumed()) {
                    return null;
                }
            }
            return event;
        }

    }

    private Parent createContent() {
        TableView<Locale> table = new TableView<>(FXCollections.observableArrayList(Locale.getAvailableLocales()));
        // just to see that right/left are intercepted while up/down are handled
        table.getSelectionModel().setCellSelectionEnabled(true);

        TableColumn<Locale,String> country = new TableColumn<>("Country");
        country.setCellValueFactory(new PropertyValueFactory<>("displayCountry"));
        TableColumn<Locale,String> language = new TableColumn<>("Language");
        language.setCellValueFactory(new PropertyValueFactory<>("displayLanguage"));
        table.getColumns().addAll(country,language);
        // disables default focus traversal
        //  table.setFocusTraversable(false);

        // decide which keys to intercept
        List<KeyCode> toIntercept = List.of(KeyCode.LEFT,KeyCode.RIGHT);
        Predicate<Event> interceptor = e -> {
            if (e instanceof KeyEvent) {
                return toIntercept.contains(((KeyEvent) e).getCode());
            }
            return false;
        };
        table.setEventDispatcher(new InterceptingEventDispatcher(
                (BasicEventDispatcher) table.getEventDispatcher(),interceptor));

        TextField textField = new TextField("something to show");
        textField.setPrefColumnCount(20);
        textField.setText("something to see");

        table.prefWidthProperty().bind(textField.widthProperty());
        Popup popUp = new Popup();
        popUp.getContent().add(table);

        textField.setOnKeyTyped(event -> {
            if(!popUp.isShowing()){
                popUp.show(
                        textField.getScene().getWindow(),textField.getScene().getWindow().getX()
                                + textField.localToScene(0,0).getX()
                                + textField.getScene().getX(),textField.getScene().getWindow().getY()
                                + textField.localToScene(0,0).getY()
                                + textField.getScene().getY()
                                + textField.getHeight() - 1);
            }
        });

        BorderPane content = new BorderPane(textField);
        return content;
    }

    @Override
    public void start(Stage stage) throws Exception {
        stage.setScene(new Scene(createContent()));
        stage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }

}