我正在尝试通过从数据库获取数据来动态添加对象/元素。
我要实现的目标是,我要复制相同的HBox
和相同的attributes
,例如FontAwesomeIcon
等。但是,我只想更改标签。>
我希望能够动态创建多个HBox
,类似于其他人,但是只需更改Labels
从数据库中获取的值即可。
FXML
类
<?xml version="1.0" encoding="UTF-8"?>
<?import de.jensd.fx.glyphs.fontawesome.FontAwesomeIconView?>
<?import javafx.geometry.Insets?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.control.ListView?>
<?import javafx.scene.control.ScrollPane?>
<?import javafx.scene.control.Separator?>
<?import javafx.scene.control.Tab?>
<?import javafx.scene.control.TabPane?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.layout.HBox?>
<?import javafx.scene.layout.VBox?>
<?import javafx.scene.shape.Circle?>
<?import javafx.scene.text.Font?>
<TabPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0"
prefWidth="700.0" stylesheets="@stylesheet.css" tabClosingPolicy="UNAVAILABLE"
xmlns="http://javafx.com/javafx/8.0.171" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sample.Controller">
<tabs>
<Tab text="Members">
<graphic>
<FontAwesomeIconView glyphName="GROUP" glyphStyle="-fx-fill:#4D4D4D" size="14"/>
</graphic>
<content>
<AnchorPane prefHeight="371.0" prefWidth="700.0">
<children>
<ScrollPane hbarPolicy="NEVER" prefHeight="381.0" prefWidth="172.0">
<content>
<VBox fx:id="vboxAdding" prefHeight="57.0" prefWidth="157.0"
style="-fx-background-color: #4D4C4F;">
<children>
<ListView fx:id="sidebarListview" prefHeight="200.0" prefWidth="157.0"/>
<HBox alignment="CENTER_LEFT" styleClass="HBox-Shadow">
<children>
<FontAwesomeIconView glyphName="SEARCH" glyphStyle="-fx-fill:#B2B2B2"
size="22"/>
<TextField promptText="Search"
style="-fx-background-color: transparent;-fx-text-fill: white"
HBox.hgrow="ALWAYS">
<font>
<Font size="15.0"/>
</font>
</TextField>
</children>
<padding>
<Insets bottom="5.0" left="10.0" top="5.0"/>
</padding>
</HBox>
<HBox fx:id="sidebarMembers" onMouseClicked="#openSidebarMembers">
<children>
<FontAwesomeIconView glyphName="USER" glyphStyle="-fx-fill:#B2B2B2"
size="22">
<HBox.margin>
<Insets top="3.0"/>
</HBox.margin>
</FontAwesomeIconView>
<VBox HBox.hgrow="ALWAYS">
<children>
<Label fx:id="sidebarName" text="Admin" textFill="WHITE">
<font>
<Font name="System Bold" size="18.0"/>
</font>
</Label>
<Label text="Administrator" textFill="WHITE"/>
</children>
<padding>
<Insets left="10.0"/>
</padding>
</VBox>
</children>
<padding>
<Insets bottom="10.0" left="10.0" top="10.0"/>
</padding>
</HBox>
<HBox fx:id="sidebarMembers1" onMouseClicked="#openSidebarMembers">
<children>
<FontAwesomeIconView glyphName="USER" glyphStyle="-fx-fill:#B2B2B2"
size="22">
<HBox.margin>
<Insets top="3.0"/>
</HBox.margin>
</FontAwesomeIconView>
<VBox HBox.hgrow="ALWAYS">
<children>
<Label fx:id="sidebarName1" text="Michael" textFill="WHITE">
<font>
<Font name="System Bold" size="18.0"/>
</font>
</Label>
<Label text="Administrator" textFill="WHITE"/>
</children>
<padding>
<Insets left="10.0"/>
</padding>
</VBox>
</children>
<padding>
<Insets bottom="10.0" left="10.0" top="10.0"/>
</padding>
</HBox>
</children>
</VBox>
</content>
</ScrollPane>
<VBox alignment="TOP_CENTER" layoutX="172.0" prefHeight="381.0" prefWidth="538.0"
style="-fx-background-color: #4D4C4F;">
<children>
<Circle fx:id="bigImageView" fill="BLUE" radius="50.0">
<VBox.margin>
<Insets bottom="20.0" top="30.0"/>
</VBox.margin>
</Circle>
<VBox alignment="TOP_CENTER">
<children>
<Label fx:id="summaryTitleName" text="Admin" textFill="WHITE">
<font>
<Font size="20.0"/>
</font>
</Label>
<Label text="Administrator" textFill="WHITE">
<font>
<Font name="System Italic" size="15.0"/>
</font>
<VBox.margin>
<Insets/>
</VBox.margin>
<padding>
<Insets bottom="5.0"/>
</padding>
</Label>
<Separator prefWidth="200.0"/>
</children>
</VBox>
<HBox alignment="CENTER" prefHeight="170.0" prefWidth="528.0">
<children>
<VBox prefHeight="168.0">
<children>
<Label text="Full Name: Admin Admin" textFill="WHITE">
<font>
<Font size="15.0"/>
</font>
<VBox.margin>
<Insets bottom="10.0" top="10.0"/>
</VBox.margin>
</Label>
<Label text="Position: Administrator" textFill="WHITE">
<font>
<Font size="15.0"/>
</font>
<VBox.margin>
<Insets bottom="10.0" top="10.0"/>
</VBox.margin>
</Label>
<Label text="Hourly Rate: £19.99" textFill="WHITE">
<font>
<Font size="15.0"/>
</font>
<VBox.margin>
<Insets bottom="10.0" top="10.0"/>
</VBox.margin>
</Label>
<Label text="Graduated: MDX University" textFill="WHITE">
<font>
<Font size="15.0"/>
</font>
<VBox.margin>
<Insets bottom="10.0" top="10.0"/>
</VBox.margin>
</Label>
</children>
<HBox.margin>
<Insets/>
</HBox.margin>
<padding>
<Insets left="10.0" right="10.0"/>
</padding>
</VBox>
<VBox prefHeight="168.0">
<children>
<Label text="Languages: Java, C++, JavaScript" textFill="WHITE">
<font>
<Font size="15.0"/>
</font>
<VBox.margin>
<Insets bottom="10.0" top="10.0"/>
</VBox.margin>
</Label>
<Label text="Country: United Kingdom" textFill="WHITE">
<font>
<Font size="15.0"/>
</font>
<VBox.margin>
<Insets bottom="10.0" top="10.0"/>
</VBox.margin>
</Label>
<Label text="City: Wembley, London" textFill="WHITE">
<font>
<Font size="15.0"/>
</font>
<VBox.margin>
<Insets bottom="10.0" top="10.0"/>
</VBox.margin>
</Label>
<Label text="Address: 64, Beverley Gardens" textFill="WHITE">
<font>
<Font size="15.0"/>
</font>
<VBox.margin>
<Insets bottom="10.0" top="10.0"/>
</VBox.margin>
</Label>
</children>
<padding>
<Insets left="10.0" right="10.0"/>
</padding>
<HBox.margin>
<Insets/>
</HBox.margin>
</VBox>
</children>
</HBox>
</children>
</VBox>
</children>
</AnchorPane>
</content>
</Tab>
<Tab text="Overview">
<graphic>
<FontAwesomeIconView glyphName="PIE_CHART" glyphStyle="-fx-fill:#4D4D4D" size="14"/>
</graphic>
<content>
<AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0"/>
</content>
</Tab>
<Tab text="Control Panel">
<graphic>
<FontAwesomeIconView glyphName="WRENCH" glyphStyle="-fx-fill:#4D4D4D" size="14"/>
</graphic>
<content>
</content>
</Tab>
</tabs>
</TabPane>
那么我该如何实现,是否有一种方法可以将元素复制/粘贴到FXML中,然后只需更改该元素内部的标签?
HBoxes
的数量不是静态的,这取决于我数据库中有多少成员。
答案 0 :(得分:2)
您可以创建可重复使用的HBox
fxml:
NodeTemplate.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.layout.HBox?>
<HBox fx:id="template" alignment="CENTER" style="fx-border-width: 3; -fx-border-color: blue;" xmlns="http://javafx.com/javafx/10.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="NodeTemplateController">
<children>
<Label fx:id="content" text="" textAlignment="CENTER" />
</children>
</HBox>
及其控制者:
NodeTemplateController.java
import javafx.fxml.FXML;
import javafx.scene.control.Label;
public class NodeTemplateController{
@FXML
Label content;
void setContent(String txt){
content.setText(txt);
}
}
您要继续向其中添加NodeTemplate
实例的主容器:
Main.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.geometry.Insets?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.ScrollPane?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.layout.VBox?>
<VBox prefHeight="200.0" spacing="5.0" xmlns="http://javafx.com/javafx/10.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="MainController">
<children>
<Button fx:id="add" text="Click To Add Nodes" textAlignment="CENTER" />
<ScrollPane prefHeight="200.0">
<content>
<VBox fx:id="containerPane"/>
</content>
</ScrollPane>
</children>
<padding>
<Insets bottom="5.0" left="5.0" right="5.0" top="5.0" />
</padding>
</VBox>
使用的控制器在鼠标点击时添加NodeTemplate
个实例:
MainController.java
import java.io.IOException;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Node;
import javafx.scene.control.Button;
import javafx.scene.layout.Pane;
public class MainController{
@FXML
private Pane containerPane;
@FXML
private Button add;
private static int counter = 0;
@FXML
private void initialize(){
add.setOnAction(e -> addNode());
}
private void addNode() {
FXMLLoader loader = new FXMLLoader();
try {
Node node = loader.load(getClass().getResource("NodeTemplate.fxml").openStream());
containerPane.getChildren().add(node);
//get the controller
NodeTemplateController controller = (NodeTemplateController)loader.getController();
controller.setContent("Node number "+ counter++); //set label
} catch (IOException ex) {
ex.printStackTrace();
}
}
}
要对其进行测试,请使用:
public void start(Stage primaryStage) throws Exception{
Parent root = FXMLLoader.load(getClass().getResource("Main.fxml"));
primaryStage.setScene(new Scene(root));
primaryStage.show();
}