的JavaFX GridPane - 配置控制增长并占据所有可用空间

Question

努力实现：

1. Text Field 1和Text Field 3应占据所有可用空间
2. Button 1和Button 2应该有相同的宽度

Issue：

Text Field 1 and Text Field 3不占用全部可用空间（尽管其增长一度Label完全显示）

下面是截图：

// 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

如果应用程序需要显式控制行或列的大小，则可以通过添加RowConstraints和ColumnConstraints obj学分指定这些度量

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

屏幕截图：