如何使 ListView 在 SplitPane 中展开？

Question

我正在使用 JavaFX 和 SceneBuilder 创建场景。在其中一个选项卡中有一个 SplitPane，当我将 window 置于最大尺寸并将其向上拖动以展开后一个视图时，它的行为与我希望的不同。 我希望 ListView 相应地扩展，但是一旦达到最大高度就会停止。如何解决这个问题？

这是一个屏幕截图：如您所见列表视图和拆分窗格分隔符之间有一个很大的space。

这是 xml 的代码：

   <TabPane prefHeight = "400.0"
         prefWidth = "600.0"
         tabClosingPolicy = "UNAVAILABLE"
         AnchorPane.bottomAnchor = "0.0"
         AnchorPane.leftAnchor = "0.0"
         AnchorPane.rightAnchor = "0.0"
         AnchorPane.topAnchor = "28.0">
    <tabs>
        <Tab text = "Clump">
            <content>
                <SplitPane dividerPositions = "0.22713864306784662"
                           orientation = "VERTICAL">
                    <items>
                        <VBox alignment = "CENTER_LEFT"
                              spacing = "10.0">
                            <padding>
                                <Insets bottom = "10.0"
                                        left = "10.0"
                                        right = "10.0"
                                        top = "10.0" />
                            </padding>
                            <children>
                                <HBox alignment = "CENTER_LEFT"
                                      prefHeight = "100.0"
                                      prefWidth = "200.0"
                                      spacing = "10.0">
                                    <children>
                                        <RadioButton fx:id = "radioClump"
                                                     mnemonicParsing = "false"
                                                     selected = "true"
                                                     text = "Ricerca per clump ID">
                                            <toggleGroup>
                                                <ToggleGroup fx:id = "clumpSearch" />
                                            </toggleGroup>
                                        </RadioButton>
                                        <TextField fx:id = "textClumpId"
                                                   promptText = "Clump id" />
                                        <Button fx:id = "searchClumpButton"
                                                mnemonicParsing = "false"
                                                text = "Cerca" />
                                    </children>
                                </HBox>
                                <RadioButton fx:id = "radioStar"
                                             mnemonicParsing = "false"
                                             text = "Clump che possono ospitare una stella massiccia"
                                             toggleGroup = "$clumpSearch" />
                            </children>
                        </VBox>
                        <VBox alignment = "BOTTOM_CENTER"
                              prefHeight = "100.0"
                              prefWidth = "200.0">
                            <children>
                                <ListView>
                                    <padding>
                                        <Insets bottom = "15.0"
                                                left = "15.0"
                                                right = "15.0"
                                                top = "15.0" />
                                    </padding>
                                </ListView>
                                <HBox alignment = "BOTTOM_RIGHT"
                                      prefWidth = "600.0"
                                      spacing = "5.0">
                                    <children>
                                        <Button mnemonicParsing = "false"
                                                text = "&lt;" />
                                        <Button mnemonicParsing = "false"
                                                text = "&gt;" />
                                    </children>
                                    <padding>
                                        <Insets top = "5.0" />
                                    </padding>
                                </HBox>
                            </children>
                        </VBox>
                    </items>
                </SplitPane>
            </content>
        </Tab>
      [... OTHER TABS ...]
    </tabs>
</TabPane>

Answer 1

A VBox 将根据它们的 preferredHeight 调整其子节点的大小，除非另有说明。您可以通过在节点上设置静态 VBox 属性 vgrow 来覆盖此行为。在 FXML 中，语法为：

<ListView VBox.vgrow="ALWAYS">
    <padding>
        <Insets bottom = "15.0"
                left = "15.0"
                right = "15.0"
                top = "15.0" />
    </padding>
</ListView>

如何使 ListView 在 SplitPane 中展开？

How to make ListView expand in a SplitPane?

xml

javafx

scenebuilder