问JavaFX HBox HGrow优先级

EN

<?import javafx.scene.control.ComboBox?>
<?import javafx.scene.control.Spinner?>
<?import javafx.scene.control.SpinnerValueFactory.IntegerSpinnerValueFactory?>
<?import javafx.scene.layout.HBox?>

<HBox xmlns="http://javafx.com/javafx/8.0.65"
      xmlns:fx="http://javafx.com/fxml/1">
  <children>
    <ComboBox fx:id="myComboBox" />
    <Spinner fx:id="mySpinner" editable="true">
      <valueFactory>
        <SpinnerValueFactory.IntegerSpinnerValueFactory
              min="0" max="999" initialValue="0" />
      </valueFactory>
    </Spinner>
  </children>
</HBox>

@FXML
private ComboBox<String> myComboBox;

@FXML
private Spinner<Integer> mySpinner;

@Override
public void initialize(URL location, ResourceBundle resources) {
    myComboBox.getItems().setAll(
        "Some very long string that takes up a very large portion" +
        " of the screen.  You can probably see where this is going.");
    mySpinner.getEditor().setPrefColumnCount(3);
}