JavaFx，FXML，如何根据父级自动调整内容大小：Button、StackPane、Field、Scrollpane答案

【问题标题】：JavaFx, FXML, how to auto resize content: Button, StackPane, Field, Scrollpane according to their parentsJavaFx，FXML，如何根据父级自动调整内容大小：Button、StackPane、Field、Scrollpane
【发布时间】：2016-11-01 07:48:50
【问题描述】：

我正在尝试使用 Fxml (SceneBuilder) 设计一个 Java 应用程序，我现在面临的问题是，我无法根据 GridPane (1,2) 第 1 行自动调整内容大小，StackPane根据窗格到 GridPane 第 2 行和 Button 和 Textfield。是否有任何财产可以帮助我或任何替代解决方案？

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.control.Button?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.control.ScrollPane?>
<?import javafx.scene.control.TableColumn?>
<?import javafx.scene.control.TableView?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.layout.ColumnConstraints?>
<?import javafx.scene.layout.GridPane?>
<?import javafx.scene.layout.Pane?>
<?import javafx.scene.layout.RowConstraints?>
<?import javafx.scene.layout.StackPane?>

<AnchorPane id="ClientItemMainAnchorPane" fx:id="ClientItem_anchorPane1" prefHeight="600.0" prefWidth="800.0" xmlns="http://javafx.com/javafx/8.0.60" xmlns:fx="http://javafx.com/fxml/1">
   <children>
      <StackPane fx:id="ClientItem_stackPane1" prefHeight="600.0" prefWidth="800.0" AnchorPane.topAnchor="0.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0">
         <children>
            <GridPane fx:id="ClientItem_gridPane" >
              <columnConstraints>
                <ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
              </columnConstraints>
              <rowConstraints>
                <RowConstraints maxHeight="517.0" minHeight="10.0" prefHeight="435.0" vgrow="SOMETIMES" />
                <RowConstraints maxHeight="294.0" minHeight="10.0" prefHeight="165.0" vgrow="SOMETIMES" />
              </rowConstraints>
               <children>
                  <ScrollPane fx:id="ClientItem_scrollPane" prefHeight="417.0" prefWidth="800.0">
                     <content>
                        <AnchorPane fx:id="ClientItem_AnchorPane2" prefHeight="396.0" prefWidth="736.0">
                           <children>
                              <TableView fx:id="ClientItem_tableView" layoutX="14.0" layoutY="14.0" prefHeight="382.0" prefWidth="768.0">
                                <columns>
                                  <TableColumn fx:id="ClientItem_tableCol_ClientNo" prefWidth="66.0" text="Client No." />
                                  <TableColumn fx:id="ClientItem_tableCol_Name" prefWidth="188.0" text="Name" />
                                    <TableColumn fx:id="ClientItem_tableCol_Address" minWidth="0.0" prefWidth="220.0" text="Address" />
                                    <TableColumn fx:id="ClientItem_tableCol_Phone" minWidth="0.0" prefWidth="108.0" text="Phone" />
                                    <TableColumn fx:id="ClientItem_tableCol_Remaing" minWidth="0.0" prefWidth="95.0" text="Remaining" />
                                    <TableColumn fx:id="ClientItem_tableCol_Type" prefWidth="87.0" text="Type" />
                                </columns>
                              </TableView>
                           </children>
                        </AnchorPane>
                     </content>
                  </ScrollPane>
                  <StackPane fx:id="ClientItem_StackPane2" prefHeight="150.0" prefWidth="200.0" GridPane.rowIndex="1">
                     <children>
                        <Pane fx:id="ClientItem_Pane" prefHeight="200.0" prefWidth="200.0">
                           <children>
                              <TextField fx:id="ClientItem_textField_ClientNo" layoutX="14.0" layoutY="42.0" prefHeight="25.0" prefWidth="69.0" />
                              <TextField fx:id="ClientItem_textField_Name" layoutX="80.0" layoutY="42.0" prefHeight="25.0" prefWidth="188.0" />
                              <TextField fx:id="ClientItem_textField_Remaining" layoutX="596.0" layoutY="42.0" prefHeight="25.0" prefWidth="95.0" />
                              <TextField fx:id="ClientItem_textField_Type" layoutX="691.0" layoutY="42.0" prefHeight="25.0" prefWidth="87.0" />
                              <TextField fx:id="ClientItem_textField_Address" layoutX="268.0" layoutY="42.0" prefHeight="25.0" prefWidth="220.0" />
                              <TextField fx:id="ClientItem_textField_Phone" layoutX="488.0" layoutY="42.0" prefHeight="25.0" prefWidth="108.0" />
                              <Label alignment="CENTER" layoutX="22.0" layoutY="14.0" text="Client No." />
                              <Label alignment="CENTER" contentDisplay="TOP" layoutX="158.0" layoutY="14.0" text="Name" />
                              <Label alignment="CENTER" layoutX="357.0" layoutY="14.0" text="Address" />
                              <Label alignment="CENTER" layoutX="525.0" layoutY="14.0" text="Phone" />
                              <Label alignment="CENTER" layoutX="615.0" layoutY="14.0" text="Remaining" />
                              <Label alignment="CENTER" layoutX="722.0" layoutY="14.0" text="Type" />
                              <Button fx:id="ClientItem_btn_Add" layoutX="307.0" layoutY="84.0" mnemonicParsing="false" prefHeight="50.0" prefWidth="100.0" text="Add" />
                              <Button fx:id="ClientItem_btn_Delete" layoutX="425.0" layoutY="84.0" mnemonicParsing="false" prefHeight="50.0" prefWidth="100.0" text="Delete" />
                           </children>
                        </Pane>
                     </children>
                  </StackPane>
               </children>
            </GridPane>
         </children>
      </StackPane>
   </children>
</AnchorPane>

【问题讨论】：

标签： java javafx

【解决方案1】：

我不确定您是否有意将您的内容包装到多个窗格中，但这是不必要的。窗格不会自动调整其内容的大小，而 AnchorPanes 只会在您调用 AnchorPane.setTopAnchor(Node)、AnchorPane.setRightAnchor(Node)、AnchorPane.setBottomAnchor(Node) 或 AnchorPane.setLeftAnchor(Node) 时调整内容的大小。

首先，GridPane。您可以分别设置RowConstraints 和ColumnConstraints 的VGrow 和HGrow 属性，以根据GridPane 的大小调整内容的大小。设置 RowConstraints 和 ColumnConstraints 的 percentHeight 和 percentWidth 也有助于保持行和列的首选比例。

在 ScrollPane 上，设置 fitToWidth 和 fitToHeight 属性以保持其子项的大小调整为与 ScrollPane 的大小匹配。

对于您的输入区域，HBox 比 Pane 更适合，因此您可以更轻松地调整文本字段和按钮的大小。将每个标签的图形设置为其对应的文本字段也有助于将两者保持在一起。

这里是你的 fxml 代码清理给你一个更好的主意。

<?xml version="1.0" encoding="UTF-8"?>


<?import javafx.geometry.Insets?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<GridPane fx:id="ClientItem_gridPane" prefHeight="600.0" prefWidth="800.0" xmlns="http://javafx.com/javafx/8.0.65"
      xmlns:fx="http://javafx.com/fxml/1">
    <columnConstraints>
        <ColumnConstraints hgrow="ALWAYS" minWidth="10.0" prefWidth="100.0" />
    </columnConstraints>
    <rowConstraints>
        <RowConstraints maxHeight="1.7976931348623157E308" minHeight="10.0" percentHeight="73.0" prefHeight="435.0"
                    vgrow="ALWAYS" />
        <RowConstraints fillHeight="false" maxHeight="1.7976931348623157E308" minHeight="10.0" percentHeight="10.0"
                    prefHeight="65.0" />
        <RowConstraints fillHeight="false" maxHeight="1.7976931348623157E308" minHeight="10.0" percentHeight="17.0"
                    prefHeight="100.0" />
    </rowConstraints>
    <children>
        <ScrollPane fx:id="ClientItem_scrollPane" fitToHeight="true" fitToWidth="true" prefHeight="417.0"
                prefWidth="800.0" GridPane.halignment="CENTER" GridPane.hgrow="ALWAYS" GridPane.valignment="CENTER"
                GridPane.vgrow="ALWAYS">
            <content>
            <TableView fx:id="ClientItem_tableView" prefHeight="409.0" prefWidth="778.0">
                    <columns>
                        <TableColumn fx:id="ClientItem_tableCol_ClientNo" prefWidth="103.0" text="Client No." />
                        <TableColumn fx:id="ClientItem_tableCol_Name" prefWidth="151.0" text="Name" />
                        <TableColumn fx:id="ClientItem_tableCol_Address" minWidth="0.0" prefWidth="220.0"
                                 text="Address" />
                        <TableColumn fx:id="ClientItem_tableCol_Phone" minWidth="0.0" prefWidth="108.0" text="Phone" />
                        <TableColumn fx:id="ClientItem_tableCol_Remaing" minWidth="0.0" prefWidth="95.0"
                                 text="Remaining" />
                        <TableColumn fx:id="ClientItem_tableCol_Type" prefWidth="102.0" text="Type" />
                    </columns>
                </TableView>
            </content>
            <padding>
                <Insets bottom="10.0" left="10.0" right="10.0" top="10.0" />
            </padding>
        </ScrollPane>
        <HBox alignment="CENTER" prefHeight="77.0" prefWidth="800.0" GridPane.hgrow="ALWAYS" GridPane.rowIndex="1"
          GridPane.vgrow="ALWAYS">
            <children>
                <Label alignment="CENTER" contentDisplay="BOTTOM" text="Client No.">
                    <graphic>
                        <TextField fx:id="ClientItem_textField_ClientNo" prefHeight="25.0" prefWidth="69.0" />
                    </graphic>
                </Label>
                <Label alignment="CENTER" contentDisplay="BOTTOM" text="Name">
                    <graphic>
                        <TextField fx:id="ClientItem_textField_Name" prefHeight="25.0" prefWidth="188.0" />
                    </graphic>
                </Label>
                <Label alignment="CENTER" contentDisplay="BOTTOM" text="Address">
                    <graphic>
                        <TextField fx:id="ClientItem_textField_Address" prefHeight="25.0" prefWidth="220.0" />
                    </graphic>
                </Label>
                <Label alignment="CENTER" contentDisplay="BOTTOM" text="Phone">
                    <graphic>
                        <TextField fx:id="ClientItem_textField_Phone" prefHeight="25.0" prefWidth="108.0" />
                    </graphic>
                </Label>
                <Label alignment="CENTER" contentDisplay="BOTTOM" text="Remaining">
                    <graphic>
                        <TextField fx:id="ClientItem_textField_Remaining" prefHeight="25.0" prefWidth="95.0" />
                    </graphic>
                </Label>
                <Label alignment="CENTER" contentDisplay="BOTTOM" text="Type">
                    <graphic>
                        <TextField fx:id="ClientItem_textField_Type" prefHeight="25.0" prefWidth="87.0" />
                    </graphic>
                </Label>
            </children>
            <padding>
                <Insets bottom="10.0" left="10.0" right="10.0" top="10.0" />
            </padding>
        </HBox>
        <HBox alignment="CENTER" prefHeight="100.0" prefWidth="200.0" spacing="20.0" GridPane.hgrow="ALWAYS"
          GridPane.rowIndex="2" GridPane.vgrow="ALWAYS">
            <children>
                <Button fx:id="ClientItem_btn_Add" mnemonicParsing="false" prefHeight="50.0" prefWidth="100.0"
                    text="Add" />
                <Button fx:id="ClientItem_btn_Delete" mnemonicParsing="false" prefHeight="50.0" prefWidth="100.0"
                    text="Delete" />
            </children>
            <padding>
                <Insets bottom="10.0" left="10.0" right="10.0" top="10.0" />
            </padding>
        </HBox>
    </children>
</GridPane>

【讨论】：