JavaFX的按钮使一格 [英] javafx make a grid of buttons

问题描述

我想使一个网格的按钮的特定量。
我知道有多少按键也有需要是因为我得到的行数和列数。

我可以做一个循环，但我不知道你怎么能放在旁边的海誓山盟和下方的按钮。结果
 其次，按键需要一个文本和一个ID，文字是没有问题的，但你怎么给他们一个id？结果
而在最后，可能也是最困难的，可能会出现它有很多行，这样滚动条应该是可用的。

目前到底应该是这个样子：

解决方案

  @覆盖
公共无效启动（阶段阶段）{
    GridPane格=新GridPane（）;
    grid.setPadding（新插图（BUTTON_PADDING））;
    grid.setHgap（BUTTON_PADDING）;
    grid.setVgap（BUTTON_PADDING）;    对于（INT R = 0;为r NUM_BUTTON_LINES; R ++）{
        对于（INT C = 0;℃下BUTTONS_PER_LINE; C ++）{
            INT数= NUM​​_BUTTON_LINES * R + C;
            Button按钮=新按钮（将String.valueOf（号））;
            grid.add（按钮，C，R）;
        }
    }    滚动窗格滚动窗格=新的滚动面板（网格）;    stage.setScene（新场景（滚动面板））;
    stage.show（）;
}
 

I want to make a grid with a specific amount of buttons. I know how many buttons there are need to be because I get the number of rows and columns.

I could do a loop, but I don't know how you can place buttons next to eachother and underneath.
Secondly, the buttons need a Text and an Id, text is no problem, but how do you give them an id?
And at last, and probably most difficult, it can occur that there are a lot of rows, so that a scrollbar should be available.

At the end it should look something like this:

解决方案

@Override
public void start(Stage stage) {
    GridPane grid = new GridPane();
    grid.setPadding(new Insets(BUTTON_PADDING));
    grid.setHgap(BUTTON_PADDING);
    grid.setVgap(BUTTON_PADDING);

    for (int r = 0; r < NUM_BUTTON_LINES; r++) {
        for (int c = 0; c < BUTTONS_PER_LINE; c++) {
            int number = NUM_BUTTON_LINES * r + c;
            Button button = new Button(String.valueOf(number));
            grid.add(button, c, r);
        }
    }

    ScrollPane scrollPane = new ScrollPane(grid);

    stage.setScene(new Scene(scrollPane));
    stage.show();
}

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