JavaFX GridPane - 配置控件以增长并占用所有可用 space

Question

正在努力实现：

Text Field 1 和 Text Field 3 应该占用所有可用的空闲 space
Button 1 和 Button 2 应该具有相同的宽度

问题：

Text Field 1 和 Text Field 3 没有占用所有可用的免费 space（尽管一旦 Label 完全显示它们就会增长）

这是屏幕截图：

// Removed imports for brevity

public class GridPaneTest extends Application
{
  @Override
  public void start(Stage primaryStage)
  {
    primaryStage.setTitle("GridPane Test");

    GridPane gridPane = new GridPane();
    // gridPane.setGridLinesVisible(true);
    gridPane.setHgap(5);
    gridPane.setVgap(5);
    gridPane.setPadding(new Insets(5));

    TextField tf1 = new TextField("Text Field 1");
    GridPane.setHgrow(tf1, Priority.ALWAYS);
    gridPane.add(tf1, 0, 0);
    TextField tf2 = new TextField("Text Field 2");
    GridPane.setHgrow(tf2, Priority.NEVER);
    gridPane.add(tf2, 1, 0);
    Button button1 = new Button("Button 1");
    button1.setMaxWidth(140);
    GridPane.setHgrow(button1, Priority.NEVER);
    GridPane.setHalignment(button1, HPos.RIGHT);
    gridPane.add(button1, 2, 0);

    TextField tf3 = new TextField("Text Field 3");
    GridPane.setHgrow(tf3, Priority.ALWAYS);
    gridPane.add(tf3, 0, 1, 2, 1);
    Button button2 = new Button("Button 2 Button 2");
    button2.setMaxWidth(140);
    GridPane.setHgrow(button2, Priority.NEVER);
    GridPane.setHalignment(button2, HPos.RIGHT);
    gridPane.add(button2, 2, 1);

    Label label1 = new Label(
        "Label 1 Label 1 Label 1 Label 1 Label 1 Label 1 Label 1 Label 1 Label 1 Label 1 Label 1");
    GridPane.setHgrow(label1, Priority.ALWAYS);
    gridPane.add(label1, 0, 2, 3, 1);

    primaryStage.setScene(new Scene(gridPane)); 

    primaryStage.show();
  }

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

Answer 1

根据GridPane documentation

if an application needs to explicitly control the size of rows or columns, it may do so by adding RowConstraints and ColumnConstraints objects to specify those metrics

gridPane.getColumnConstraints()
  .addAll(new ColumnConstraints(), new ColumnConstraints(),
    new ColumnConstraints(140) /* Control the third column size */);

屏幕截图：

JavaFX GridPane - 配置控件以增长并占用所有可用 space

JavaFX GridPane - Configuring controls to grow and occupy all the available space

java

layout

javafx-8

gridpane