Question

特别具有描述性和信息量的答案将获得价值50美元的奖励。

我正在使用JavaFX开发应用程序，对于视图，我使用FXML。

<AnchorPane id="AnchorPane" fx:id="dashboard" prefHeight="400.0" prefWidth="600.0" stylesheets="@css/dashboard.css" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.hassanalthaf.telemart.viewmodels.DashboardViewModel">
   <children>
      <MenuBar maxWidth="600.0" minWidth="600.0" prefWidth="600.0">
        <menus>
          <Menu mnemonicParsing="false" text="File">
            <items>
              <MenuItem mnemonicParsing="false" text="Close" />
            </items>
          </Menu>
          <Menu mnemonicParsing="false" text="Help">
            <items>
              <MenuItem mnemonicParsing="false" text="About" />
            </items>
          </Menu>
        </menus>
      </MenuBar>
      <AnchorPane fx:id="home" layoutY="29.0" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="371.0" prefWidth="600.0" />
      <AnchorPane fx:id="about" layoutY="29.0" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="371.0" prefWidth="600.0" />
      <AnchorPane fx:id="users" layoutY="29.0" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="371.0" prefWidth="600.0" />
   </children>
</AnchorPane>

如您所见，此代码段包含一些<AnchorPane>个ID为home，about，users的代码段。这些是我的申请的单独页面。要操纵那些窗格，我必须将它们注入到我的代码中：

@FXML
private AnchorPane home;

@FXML
private AnchorPane about;

@FXML
private AnchorPane users;

这可能看起来很整洁，但是当页面超过20页时，它可能看起来有点混乱和乏味。有没有办法以干净有效的方式将它们分组成数组或其他东西？

Answer 1

您可以使用fx:define和fx:reference将元素放置在List和场景图中，并将列表注入控制器：

<AnchorPane id="AnchorPane" fx:id="dashboard" prefHeight="400.0" prefWidth="600.0" stylesheets="@css/dashboard.css" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.hassanalthaf.telemart.viewmodels.DashboardViewModel">
   <fx:define>
        <!-- create panes and store them in a list -->
        <ArrayList fx:id="panes">
            <AnchorPane fx:id="home" layoutY="29.0" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="371.0" prefWidth="600.0" />
            <AnchorPane fx:id="about" layoutY="29.0" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="371.0" prefWidth="600.0" />
            <AnchorPane fx:id="users" layoutY="29.0" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="371.0" prefWidth="600.0" />
        </ArrayList>
    </fx:define>
    <children>
        <MenuBar maxWidth="600.0" minWidth="600.0" prefWidth="600.0">
            <menus>
                <Menu mnemonicParsing="false" text="File">
                    <items>
                        <MenuItem mnemonicParsing="false" text="Close" />
                    </items>
                </Menu>
                <Menu mnemonicParsing="false" text="Help">
                    <items>
                        <MenuItem mnemonicParsing="false" text="About" />
                    </items>
                </Menu>
            </menus>
        </MenuBar>
        <!-- add panes in the list to scene graph -->
        <fx:reference source="home"/>
        <fx:reference source="about"/>
        <fx:reference source="users"/>
    </children>
</AnchorPane>

控制器

@FXML
private List<AnchorPane> panes;

将JavaFX FXML对象组合在一起

1 个答案:

控制器