小编wle*_*lek的帖子

我想在网格窗格中具有相等（最大）宽度的按钮。

当我试图直接在 FXML 中设置它时 - 它完美地工作。

<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.layout.*?>
<AnchorPane xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1"
            fx:controller="TestController">
    <children>
        <GridPane AnchorPane.leftAnchor="0" AnchorPane.rightAnchor="0" AnchorPane.bottomAnchor="0"
                  AnchorPane.topAnchor="0">
            <columnConstraints>
                <ColumnConstraints hgrow="SOMETIMES" percentWidth="50.0"/>
                <ColumnConstraints hgrow="SOMETIMES" percentWidth="50.0"/>
            </columnConstraints>
            <children>
                <Button maxWidth="Infinity" text="Button1" GridPane.columnIndex="0"/>
                <Button maxWidth="Infinity" text="Button2" GridPane.columnIndex="1"/>
            </children>

        </GridPane>
    </children>
</AnchorPane>

但是当我想将整个网格分成一个自定义控件时，按钮停止填充可用宽度。

这是一个 FXML：

<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.layout.*?>
<?import CustomGridPane?>
<AnchorPane xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1"
            fx:controller="TestController">
    <children>
        <CustomGridPane AnchorPane.leftAnchor="0" AnchorPane.rightAnchor="0" AnchorPane.bottomAnchor="0" AnchorPane.topAnchor="0">
        </CustomGridPane>
    </children>
</AnchorPane>

还有一个扩展：

public class CustomGridPane extends GridPane {

    private Button button1 = new Button("button1"); …