代码之家 › 专栏 › 技术社区 › parsecer

JavaFX,GridPane:使GridPane的列中的元素具有所有列宽

javafx java

1

parsecer · 技术社区 · 2 年前

public class Tester extends Application  {
    private static final int WIDTH = 300;
    private static final int HEIGHT = 400;

    @Override
    public void start(Stage stage) {
        GridPane pane = new GridPane();
        pane.setAlignment(Pos.TOP_LEFT);
        pane.setHgap(10);
        pane.setVgap(10);
        pane.setPadding(new Insets(10, 10, 10, 10));

        pane.add(new Button("cat"), 0, 0);
        pane.add(new Button("monkey"), 0, 1);
        pane.add(new Button("elephant and lion"), 0, 2);

        Scene scene = new Scene(pane, WIDTH, HEIGHT);
        stage.setScene(scene);
        stage.show();
    }
}

显示:

如何使所有按钮都具有相同的宽度,如下所示:

我试着将按钮添加到 VBox 然后添加 VBox 到 GridPane ,但没有起作用。

1 回复 | 直到 2 年前

1

3

Sai Dandem 2 年前

在这种情况下,您需要将按钮的最大宽度设置为POSITIVE_INFINITY。

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

import java.util.stream.Stream;

public class Tester extends Application {
    private static final int WIDTH = 300;
    private static final int HEIGHT = 400;

    @Override
    public void start(Stage stage) {
        GridPane pane = new GridPane();
        pane.setGridLinesVisible(true);
        pane.setAlignment(Pos.TOP_LEFT);
        pane.setHgap(10);
        pane.setVgap(10);
        pane.setPadding(new Insets(10, 10, 10, 10));

        Button cat = new Button("cat");
        Button monkey = new Button("monkey");
        Button elephant = new Button("elephant and lion");
        pane.add(cat, 0, 0);
        pane.add(monkey, 0, 1);
        pane.add(elephant, 0, 2);

        Stream.of(cat, monkey, elephant).forEach(btn -> btn.setMaxWidth(Double.POSITIVE_INFINITY));

        Scene scene = new Scene(pane, WIDTH, HEIGHT);
        stage.setScene(scene);
        stage.show();
    }
}