javafx和场景构建器

Question

@Override
public void start(Stage stage) throws Exception {
PieChart pie = new PieChart();
pie.setData(getChart());
StackPane pane = new StackPane();
Scene scene = new Scene(pane);
stage.setScene(scene);
pane.getChildren().addAll(pie);
stage.show();
}
private ObservableList<PieChart.Data> getChart() {
    ObservableList<PieChart.Data> list = FXCollections.observableArrayList();
    list.addAll(new PieChart.Data("java",20), new PieChart.Data("c",20), 
    new PieChart.Data("C++",20));
    return list;
}

我希望此图表显示在场景构建器上。怎么可能.. ??

Answer 1

在SceneBuilder中，从菜单中：

1. 选择File | Open
2. 选择pie.fxml
3. 选择View | Show Sample Data

pie.fxml

<?xml version="1.0" encoding="UTF-8"?>

<?import java.lang.*?>
<?import java.util.*?>
<?import javafx.scene.chart.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.paint.*?>

<StackPane id="StackPane" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="250.0" prefWidth="300.0" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/2.2">
  <children>
    <PieChart id="PieChart" prefHeight="-1.0" prefWidth="-1.0" />
  </children>
</StackPane>