Question

目标是在调整窗口大小时调整GridPane中特定区域（仅与左上角区域相关）的大小。相关区域应始终适合窗口大小。调整大小机制工作正常，但GridPane看起来要大得多，这使得重要区域变小。

有没有办法切断GridPane中未使用的单元格？

或者有更好的解决方案吗？

以下问题的代码和屏幕截图：

for (int row = 0; row <= characters.length - 1; row++) {
            for (int column = 0; column <= characters[0].length - 1; column++) {
                ClockElement n = new ClockElement(characters[row][column], false);
                grid.add(n.getLabel(), column, row);
            GridPane.setHalignment(n.getLabel(), HPos.CENTER);

                ColumnConstraints c = new ColumnConstraints();
                c.setHgrow(Priority.ALWAYS);
                //c.setMinWidth(40);
                c.setPercentWidth(50); //old 40
                grid.getColumnConstraints().add(c);
                RowConstraints r = new RowConstraints();
                r.setVgrow(Priority.ALWAYS);
                //r.setMinHeight(40);
                r.setPercentHeight(50);
                grid.getRowConstraints().add(r);
                arrClockElement[row][column] = n;
            }
        }
        grid.setPadding(new Insets(0, 0, 0, 0));
        grid.setPrefSize(580, 680); // Default width and height
        grid.setMaxSize(Region.USE_COMPUTED_SIZE, Region.USE_COMPUTED_SIZE);
        grid.setGridLinesVisible(true);

Answer 1

您添加的ColumnConstraint和RowConstraint太多了。您需要characters.length（行数）RowConstraints和characters[0].length（列数）ColumnConstraints。相反，您要在内部循环中添加两者，因此您要添加每个(characters.length)*(characters[0].length)。

将RowConstraints创建移到内部循环之外，并创建一个新循环以添加ColumnConstraints：

for (int row = 0; row <= characters.length - 1; row++) {

    RowConstraints r = new RowConstraints();
    r.setVgrow(Priority.ALWAYS);
    //r.setMinHeight(40);
    r.setPercentHeight(50);
    grid.getRowConstraints().add(r);

    for (int column = 0; column <= characters[0].length - 1; column++) {
        ClockElement n = new ClockElement(characters[row][column], false);
        grid.add(n.getLabel(), column, row);
        GridPane.setHalignment(n.getLabel(), HPos.CENTER);

        arrClockElement[row][column] = n;
    }
}

for (int column = 0 ; column < characters[0].length; column++) {
    ColumnConstraints c = new ColumnConstraints();
    c.setHgrow(Priority.ALWAYS);
    //c.setMinWidth(40);
    c.setPercentWidth(50); //old 40
    grid.getColumnConstraints().add(c);
}

GridPane填充了大量空间 - 仅部分区域相关

1 个答案: