"anchorpane background with colorPicker" Code Answer's
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anchorpane background with colorPicker
Code 1.1 changeBackground.fxml
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<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.ColorPicker?>
<?import javafx.scene.layout.AnchorPane?>
<AnchorPane fx:id="anchorPane" fx:controller="sample.ChangeBGController" maxHeight="-Infinity" maxWidth="-Infinity"
minHeight="-Infinity"
minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/11.0.1"
xmlns:fx="http://javafx.com/fxml/1">
<children>
<ColorPicker fx:id="colorPicker" layoutX="14.0" layoutY="21.0"/>
</children>
</AnchorPane>
In the fxml code above, there is only AnchorPane as the root layout and a ColorPicker to change the background color. Next up is the controller.
Code 1.2 ChangeBGController.java
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import javafx.fxml.FXML;
import javafx.scene.control.ColorPicker;
import javafx.scene.layout.AnchorPane;
public class ChangeBGController {
@FXML
private AnchorPane anchorPane;
@FXML
private ColorPicker colorPicker;
public void initialize() {
colorPicker.valueProperty().addListener((observable -> {
anchorPane.setStyle(
"-fx-background-color: #" + colorPicker.getValue().toString().substring(2, 8) + ";"
);
}));
}
}
The controller code above will change the AnchorPane background whenever the ColorPicker value changes shown on the 13th line. Because the ColorPicker value is in the form of a literal hex (0xff), the ColorPicker value is only taken from the second to 8 characters seen from the substring () method.
Code 1.3 Main.java
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import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;
public class Main extends Application {
@Override
public void start(Stage primaryStage) throws Exception{
Parent root = FXMLLoader.load(getClass().getResource("changeBackground.fxml"));
primaryStage.setTitle("Change The Background Color");
primaryStage.setScene(new Scene(root, 300, 275));
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}
Source: www.odiestas.com
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