JavaFX：使用FXML在行中组织控件（在gridpane中）

Question

<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>

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

我确实知道VBox和HBox，这是我想要的，但我想有固定宽度的列元素。

Answer 1

可以使用对象跟踪rowindex。

Java：

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>