JavaFX:使用FXML按行(在网格窗格中)组织控件

Question

我有一个带有很多控件的GUI(标签,文本字段,组合框和复选框).我在Gridpane中组织它们并希望将它们放在行和列中(就像它用于gridpane布局一样).

如果我使用FXML,我会这样写:

<GridPane>
   <Label GridPane.rowIndex="0" GridPane.columnIndex="0" text="field1"/>
   <TextField GridPane.rowIndex="0" GridPane.columnIndex="1"/>
   <Label GridPane.rowIndex="1" GridPane.columnIndex="0" text="field2"/>
   <TextField GridPane.rowIndex="1" GridPane.columnIndex="1"/>
</GridPane>

现在问题:如果我想在第0行和第1行之间添加一行,我需要增加下一行的行索引.现在让我们取20行和5列,我想在第一行之后添加一行.这对我来说可以为第一个下面的每一行增加rownumber.

有没有类似行元素的东西,它的子控件在同一行中随着列数的增加而定位？我想到这样的事情:

<GridPane>
   <GridPane.Row>
       <Label text="field1"/>
       <TextField/>
   </GridPane.Row>
   <GridPane.Row>
       <Label text="field2"/>
       <TextField/>
   </GridPane.Row>
</GridPane>

我知道VBox和HBox,这几乎是我想要的,但我希望在固定宽度的列中有元素.

Answer 1

您可以使用对象进行跟踪rowIndex.

Java的:

public class RowCounter {
    private int currentRowIndex = 0;

    /**
     * Return current rowIndex.
     * @return
     */
    public int getCr() {
        return currentRowIndex;
    }

    /**
     * Return current rowIndex and increase it.
     * @return
     */
    public int getNr() {
        return currentRowIndex++;
    }
}

FXML:

<GridPane xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1">
    <fx:define>
        <RowCounter fx:id="rc" />
    </fx:define>

    <children>
        <Label text="Name:" GridPane.columnIndex="0" GridPane.rowIndex="$rc.cr" />
        <TextField GridPane.columnIndex="1" GridPane.rowIndex="$rc.nr" />

        <Label text="Age:" GridPane.columnIndex="0" GridPane.rowIndex="$rc.cr" />
        <TextField GridPane.columnIndex="1" GridPane.rowIndex="$rc.nr" />

        <Label text="Address:" GridPane.columnIndex="0" GridPane.rowIndex="$rc.cr" />
        <TextField GridPane.columnIndex="1" GridPane.rowIndex="$rc.nr" />
    </children>
</GridPane>