JavaFX：无法在 GridPane 内水平居中行单元格

Question

我有这个 JavaFX 代码：

import javafx.application.Application;
import javafx.geometry.HPos;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;
import javafx.scene.layout.GridPane;
import javafx.stage.Stage;


public class Test extends Application {
    public static void main(String[] args) {
        Application.launch(args);
    }

    @Override
    public void start(Stage stage) throws Exception {
        Label nameLabel = new Label("Customer Name:");
        Label resultsLabel = new Label("Results:");

        Button taxesButton = new Button("Calculate the Taxes");
        Button interestButton = new Button("Calculate the Interest");

        TextField salaryField = new TextField();

        TextField resultsField = new TextField();
        resultsField.setEditable(false);


        GridPane gridPane = new GridPane();

        gridPane.add(nameLabel, 0, 0);
        gridPane.add(salaryField, 1, 0);

        gridPane.add(taxesButton, 0, 1);
        gridPane.add(interestButton, 1, 1);
        GridPane.setHalignment(taxesButton, HPos.CENTER);
        GridPane.setHalignment(interestButton, HPos.RIGHT);

        gridPane.add(resultsLabel, 0, 2);
        gridPane.add(resultsField, 1, 2);


        gridPane.setAlignment(Pos.CENTER);
        gridPane.setPadding(new Insets(25, 25, 25, 25));

        gridPane.setVgap(10);
        gridPane.setHgap(10);


        stage.setTitle("Calculations");
        Scene scene = new Scene(gridPane, 400, 150);
        stage.setScene(scene);
        stage.show();
    }
}

看起来像这样：

我希望它看起来像这样（第一列居中）：

我尝试添加 Pos.Center 但它似乎没有用。

Answer 1

你需要像这样使用 ColumnConstraints:

ColumnConstraints columnConstraint = new ColumnConstraints();
columnConstraint.setHalignment(HPos.CENTER);
gridPane.getColumnConstraints().add(columnConstraint);

JavaFX：无法在 GridPane 内水平居中行单元格

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java

javafx